Carta vs Astrella: The Complete Equity Management Platform Comparison for 2026

Choosing the right equity management platform can feel overwhelming. There are dozens of options out there. Two names keep coming up in conversations: Carta and Astrella. Both platforms help companies manage cap tables, stock plans, and compliance requirements. But they take different approaches to solving these problems.

This comparison guide breaks down everything you need to know about Carta and Astrella. We’ll look at pricing, features, customer support, compliance tools, and more. Whether you’re a startup founder, CFO, or HR professional, you’ll find the details you need to make an informed decision. By the end, you’ll understand which platform fits your company’s specific needs and budget.

Understanding Equity Management Platforms: Why They Matter

Before we dig into the Carta versus Astrella comparison, let’s talk about why equity management platforms exist in the first place.

The Problem with Spreadsheets

Many companies start managing their cap tables in Excel. It seems simple enough at first. You’ve got a few founders, maybe some early employees with stock options. A spreadsheet works fine.

Then things get complicated. Fast.

• New funding rounds add investors with different share classes
• Employee stock option pools grow and change
• Vesting schedules need tracking across dozens of people
• Tax compliance requirements pile up
• 409A valuations need documentation
• Board members want real-time access to ownership data

Suddenly that spreadsheet becomes a liability. One formula error could mean miscalculating someone’s equity stake. That’s not just embarrassing. It’s potentially illegal.

What Equity Management Software Actually Does

Platforms like Carta and Astrella replace spreadsheets with purpose-built tools. They automate calculations. They maintain audit trails. They generate reports for accountants and auditors.

Good equity management software should:

• Track ownership accurately across all share classes
• Manage employee stock plans including vesting schedules
• Generate compliance reports for ASC 718 and other standards
• Provide stakeholder portals so investors and employees can view their holdings
• Model exit scenarios to show what everyone gets in a sale or IPO
• Store documents securely in one central location

Both Carta and Astrella deliver these core functions. The differences lie in how they approach pricing, customization, support, and specific feature implementation.

Company Background: Carta and Astrella Origins

Carta: The Industry Giant

Carta was founded in 2012 in San Francisco, California. Originally called eShares, the company rebranded to Carta in 2017. The name change reflected their broader ambitions beyond just equity management.

Today, Carta serves thousands of companies. They’ve expanded into fund administration, investor services, and private market infrastructure. The platform connects founders, investors, and limited partners through integrated software tools.

Carta has received recognition as a “Market Leader” in industry reports, including the Spring 2024 Cap Table Management Software Customer Success Report. They have substantial market share and a large customer base.

Key Carta facts:

• Founded: 2012
• Headquarters: San Francisco, California
• Original name: eShares
• Primary focus: Private capital markets
• Additional services: Fund administration, 409A valuations, investor relations

Astrella: The Challenger Platform

Astrella is newer to the market, founded in 2019. The company operates as part of AST Private Company Solutions, which gives them backing from an established financial services firm.

Astrella positions itself as a more flexible, cost-effective alternative to larger platforms. They focus specifically on equity management for private companies rather than trying to be an all-in-one private markets infrastructure.

Key Astrella facts:

• Founded: 2019
• Parent company: AST Private Company Solutions
• Primary focus: Equity management for private companies
• Specialty: Customization and compliance reporting

The age difference matters. Carta has had over a decade to build features and market presence. Astrella brings fresh perspective and potentially more modern architecture to solve the same problems.

Carta vs Astrella Pricing: A Detailed Cost Breakdown

Pricing is often the first question companies ask. And it’s where Carta and Astrella differ most dramatically.

Carta Pricing Structure

Carta uses a tiered pricing model that scales with company size and feature needs. Their pricing has historically been higher than many competitors. This reflects their market position and comprehensive feature set.

Carta charges:

• Annual subscription fees based on company stage and number of stakeholders
• Additional fees for 409A valuations and other services
• Per-stakeholder costs that increase as your team grows

According to available comparisons, Carta’s pricing model can become expensive as companies scale. Many users report that costs increase substantially during funding rounds or when adding employees to stock plans.

One specific cost comparison shows Carta charging around $49 as a one-time fee for certain services. But the full platform subscription runs much higher, often thousands of dollars annually for growing companies.

Astrella Pricing Structure

Astrella takes a different approach to pricing. They emphasize flexible models that grow with your company without dramatic cost increases.

According to their published comparisons, Astrella offers:

• $29 one-time fee for certain services (compared to Carta’s $49)
• Flexible pricing models that scale more gradually
• No forced stakeholder communication fees

Astrella explicitly markets itself as having “more competitive pricing” than Carta. Their model aims to avoid the sticker shock that some Carta customers experience during growth phases.

Pricing Comparison Table

Total Cost of Ownership Considerations

Price tags don’t tell the whole story. Consider these factors when evaluating total cost:

Implementation time: How long does setup take? Every hour your team spends on implementation costs money.

Legal review savings: Sean Griffin from Disaster Tech noted that using Astrella helped them save money. As one user explained: “I could set up the cap table with Astrella and then get my legal team to review it, rather than hiring my legal team to set up the entire cap table.”

Ongoing support costs: Will you need to pay for training? What about consulting services for complex scenarios?

Switching costs: If you outgrow a platform, migrating data to a new system takes time and money.

Cap Table Management: Core Feature Comparison

Cap table management is the foundation of both platforms. Let’s look at how each handles this core function.

Carta’s Cap Table Features

Carta’s cap table management has been refined over more than a decade. The platform offers:

• Real-time ownership tracking across multiple share classes
• Scenario modeling for funding rounds and exits
• Waterfall analysis showing distribution in liquidity events
• Document generation for board consents and stock certificates
• Audit trails for compliance purposes

Carta’s user interface is often praised for its intuitive design. Many reviews highlight that both business owners and employees can navigate it easily.

The platform supports complex equity structures including:

• Common and preferred stock
• Convertible notes
• SAFEs
• Warrants
• Multiple option pools

Astrella’s Cap Table Features

Astrella approaches cap table management with a focus on accuracy and customization. Their platform includes:

• Immutable ledger technology for data integrity
• Support for LLCs and LPs beyond traditional C-corps
• Exit modeling and waterfall distributions
• Next round scenario planning
• Company-directed stakeholder communication

One standout feature: Astrella supports LLCs and LPs. This matters for companies with non-traditional structures. Carta’s focus has traditionally been on standard C-corp equity.

The immutable ledger feature deserves special attention. This means once data is entered and confirmed, it can’t be silently changed. Every modification creates a record. For compliance and audit purposes, this provides strong protection.

Cap Table Feature Comparison

Stakeholder Communication: A Key Difference

This comparison reveals an important distinction. With Carta, the platform may communicate directly with your stakeholders. This could mean investors or employees receive notifications or updates from Carta itself.

Astrella takes a different approach. Stakeholder communication is “directed by the company.” You control when and how your investors and employees receive information.

Why does this matter?

Some companies want tight control over investor communications. They may be navigating sensitive situations. Unexpected emails from a third-party platform could create confusion or concern.

Other companies prefer the hands-off approach. Let the platform handle notifications automatically. Less work for internal teams.

Neither approach is wrong. It depends on your communication style and stakeholder relationships.

Employee Stock Plan Administration: Carta versus Astrella

Managing employee equity is where cap table software earns its keep. Stock options, RSUs, and other equity awards require careful tracking and administration.

Stock Option Management on Carta

Carta offers comprehensive employee stock plan tools:

• Option grant management from approval through exercise
• Vesting schedule tracking with automatic calculations
• Exercise processing including payment handling
• Tax withholding calculations for various jurisdictions
• Employee portals where staff can view their equity

The employee experience on Carta is generally well-regarded. Staff members can log in, see their vested and unvested options, and understand the current value based on recent valuations.

Carta also handles the administrative burden of option exercises. When an employee wants to exercise options, the platform can process paperwork and payments.

Stock Option Management on Astrella

Astrella provides similar employee stock plan functionality with some unique features:

• Employee stock plan tracking across grant types
• Vesting automation with flexible schedule support
• Scenario planning tools for employee education
• No forced re-signing of existing grants
• Stakeholder portals with real-time data access

One specific difference stands out. The comparison data shows that Carta may “force stakeholders to re-sign existing grants” while Astrella does not require this.

What does this mean practically?

When you switch to Carta, employees might need to sign new documents acknowledging their existing grants. This creates administrative overhead. It can also cause confusion or concern among employees who don’t understand why they’re signing papers about equity they already own.

Astrella avoids this requirement. Your existing grants migrate without requiring employee action.

Employee Stock Plan Comparison

The Investor Visibility Advantage

Both platforms provide stakeholder portals. But the value goes beyond employee access.

As one Astrella customer explained: “Astrella also provides Kohn’s current investors with significantly improved visibility. Rather than waiting for Kohn to send an updated spreadsheet every so often, investors can log in directly to the portal and see the cap table for themselves.”

This creates what the customer called “one reliable source of truth that investors and employees alike can access and get an understanding of their investment.”

Compare this to the old way of doing things. Someone asks about their ownership percentage. You dig through spreadsheets. You send an email. They have follow-up questions. More emails.

With a proper portal, stakeholders help themselves. This saves time for everyone.

Compliance and Reporting: ASC 718 and 409A Requirements

Equity compensation comes with serious compliance requirements. Getting these wrong can mean IRS penalties, restatements, and audit nightmares.

Understanding ASC 718 Compliance

ASC 718 is the accounting standard that governs stock-based compensation. Public companies must follow it strictly. Private companies preparing for IPO or acquisition need ASC 718 compliance too.

The standard requires:

• Fair value measurement of all equity awards
• Expense recognition over vesting periods
• Detailed disclosure in financial statements
• Consistent methodology for valuation

Getting ASC 718 wrong can delay an IPO or kill an acquisition deal. Auditors scrutinize this area heavily.

Carta’s Compliance Features

Carta provides compliance tools including:

• 409A valuation services (in-house offering)
• ASC 718 reporting capabilities
• Audit support with documentation
• Tax compliance for various grant types

One notable aspect of Carta’s approach: they offer 409A valuations as an integrated service. This means you can get your valuation from the same platform that manages your cap table.

There’s a potential conflict of interest here that some companies worry about. The platform that benefits from your cap table complexity is also determining your share value. Most companies find this acceptable. Some prefer separation.

Astrella’s Compliance Features

Astrella takes a different approach to compliance:

• Extensive ASC 718 reporting with 50+ reports
• IFRS compliance support for international companies
• External valuation partnerships for 409A
• Public company-grade reporting verified by accounting firms

The comparison data specifically highlights: “Extensive reporting to support both ASC 718 and IFRS (50+ reports). Verified by public accounting firms; same reports are used by public company clients.”

This last point matters for companies planning to go public. If you’re using the same reporting standards that public companies use, your transition becomes smoother.

The 409A Valuation Difference

Here’s where Astrella and Carta differ philosophically.

Carta offers 409A valuations in-house. Convenient. One vendor. Integrated data.

Astrella partners with external valuation providers. As they explain: “Astrella partners with external valuation providers to avoid possible conflict of interest. This is seamless for customer as the process is managed via the implementation manager.”

Which approach is better?

Arguments for Carta’s integrated approach:

• Simpler vendor management
• Data already in the system
• Potentially faster turnaround

Arguments for Astrella’s partner approach:

• Independence avoids conflicts of interest
• External validation may carry more weight with auditors
• Ability to shop for best valuation price

Compliance Feature Comparison

Customer Support and Training: Service Quality Comparison

Software is only as good as the support behind it. Both platforms offer customer service. The quality and approach differ significantly.

Carta’s Support Reputation

Carta is a large organization serving thousands of customers. With scale comes both resources and challenges.

According to available comparisons, Carta has experienced:

• High staff turnover affecting support quality
• Training gaps with newer support representatives
• Lower G2 satisfaction scores in some categories

The comparison data states directly: “High turnover of staff with little training. Low G2 satisfaction scores.”

This doesn’t mean Carta support is bad. It means the experience can be inconsistent. You might get a knowledgeable representative one day and someone less experienced the next.

Large platforms often struggle with this. Growth creates hiring pressure. Hiring pressure leads to rapid onboarding. Rapid onboarding means less trained staff.

Astrella’s Support Approach

Astrella markets itself on customer service quality. Several customer stories highlight the support experience.

Sean Griffin from Disaster Tech described how Astrella provided:

• Dedicated implementation support
• Ongoing guidance for compliance questions
• Responsive service when issues arise

Another customer noted: “Astrella was really instrumental in giving us the support to build [our cap table] out properly. They provided information that was really important; it allowed me to save money in the long run.”

As a smaller platform, Astrella can potentially offer more personalized attention. Fewer customers means more time per customer.

The Implementation Experience

Setting up a cap table platform isn’t trivial. You need to:

• Migrate historical data accurately
• Verify all ownership records
• Configure grant types and vesting schedules
• Set up user accounts for stakeholders
• Train internal administrators

Poor implementation creates problems for years. Bad data in means bad data out.

Astrella emphasizes their implementation manager role. This dedicated person guides customers through setup. They help structure the cap table correctly from the start.

As one customer explained: “The most difficult part is setting it up. Fortunately, Astrella was really instrumental in giving us the support to build [our cap table] out properly.”

Carta also offers implementation support, though experiences vary based on the service tier and current support capacity.

Support Comparison Table

User Interface and Experience: Platform Usability

A cap table platform gets used by many different people. Founders, CFOs, HR managers, employees, investors, board members. Each has different needs and technical abilities.

Carta’s Interface Design

Carta has invested heavily in user experience over the years. The platform is often described as having:

• Intuitive design that requires minimal training
• Clean dashboards showing key information at a glance
• Mobile-friendly access for stakeholders on the go
• Consistent navigation across different features

The interface has been refined through thousands of customer interactions. Carta knows what users click on, where they get confused, and what they need most often.

One review noted: “One of the biggest advantages of Carta software is its intuitive design, making it easy for both business owners and employees to navigate.”

Astrella’s Interface Approach

Astrella built their platform more recently. This has advantages and disadvantages.

Advantages:

• Modern architecture without legacy constraints
• Learned from competitors’ UX mistakes
• Built for current browser and device standards

Disadvantages:

• Less user feedback incorporated over time
• Fewer edge cases encountered and solved

Customer feedback suggests Astrella’s interface meets professional standards. Users can accomplish tasks without extensive training.

Customization Capabilities

Not every company manages equity the same way. Customization matters.

Astrella specifically markets “increased customization” as an advantage. According to their materials: “If your company requires more specialized equity management tools, Astrella provides enhanced flexibility that allows you to tailor the platform to your exact requirements.”

Carta, being larger and serving more diverse customers, has more standardized workflows. This can be good (proven processes) or limiting (less flexibility).

Companies with unusual equity structures, international operations, or specific reporting needs may find Astrella’s customization valuable.

Document Management and Security: Keeping Your Data Safe

Equity documents are sensitive. Stock certificates, board consents, option agreements, vesting schedules. These contain financial and personal information that must stay secure.

Document Storage on Both Platforms

Both Carta and Astrella provide document vaults for storing equity-related files.

Standard features include:

• Centralized storage for all equity documents
• Version control tracking document changes
• Access controls limiting who sees what
• Audit trails showing who accessed documents when
• Secure sharing for board members and investors

Astrella specifically mentions their “document vault for secure storage of equity-related documents” as a core platform feature.

The Immutable Ledger Difference

Astrella’s immutable ledger technology provides an extra security layer. Once data is confirmed in the system, it can’t be changed without creating a permanent record.

This matters for:

• Audit defense – prove your records haven’t been tampered with
• Legal disputes – demonstrate the historical state of ownership
• Internal controls – prevent unauthorized modifications
• Regulatory compliance – show data integrity to examiners

Traditional database systems allow administrators to modify records. An immutable ledger makes this impossible or at least detectable.

Data Security Practices

Both platforms follow industry security standards:

• SOC 2 compliance
• Encryption in transit and at rest
• Regular security audits
• Access logging
• Multi-factor authentication options

When evaluating either platform, ask about:

• Data backup procedures
• Disaster recovery plans
• Data residency options (where your data is stored geographically)
• Third-party security certifications

Board Management Features: Supporting Governance

Many companies need more than just cap table management. Board meetings, consents, and governance documentation often connect to equity decisions.

Carta’s Board Management Tools

Carta offers board management features as part of their comprehensive platform:

• Board consent generation for equity grants and other approvals
• Digital signatures for board resolutions
• Board portal access for directors to view company information
• Meeting minutes templates and storage

These features integrate with cap table management. When the board approves a new option grant, the approval flows directly into the cap table.

Astrella’s Board Meeting Documentation

Astrella includes board meeting documentation as part of their equity management platform. This includes:

• Meeting documentation connected to equity decisions
• Board visibility into cap table data
• Consent tracking for equity-related approvals

As one customer described: “Astrella gives our board and investors the assurance that we as a company are not only using modern technology to manage our stock plan but also ensure we’re in compliance.”

This assurance matters. Board members have fiduciary duties. They need confidence that equity is being managed properly. A professional platform demonstrates the company takes governance seriously.

Exit and Liquidity Event Modeling

Every equity stakeholder wants to know: what do I get if the company sells?

Exit modeling tools answer this question. They’re critical for fundraising, acquisition negotiations, and stakeholder communications.

Waterfall Analysis Capabilities

Both platforms offer waterfall analysis showing how proceeds distribute in a liquidity event.

A waterfall analysis considers:

• Liquidation preferences – who gets paid first
• Participation rights – whether preferred shareholders also share in common proceeds
• Cap structures – limits on participation
• Conversion rights – when preferred converts to common
• Option pool impact – dilution from unissued options

These calculations are complex. Getting them wrong can lead to disappointed stakeholders or deal complications.

Scenario Modeling Features

Beyond simple waterfalls, both platforms offer scenario planning:

• Different exit values – what happens at $50M vs. $100M vs. $500M
• Next round modeling – impact of various funding scenarios
• Hiring plan impact – how new option grants affect dilution
• Option pool refresh – modeling pool increases before funding

These tools help founders make informed decisions. Should you raise more money? How much dilution will that cause? What exit value do you need for various stakeholders to achieve their goals?

Astrella specifically highlights “exit modeling/waterfall distributions/next round” as core features in their platform comparison.

International and Multi-Entity Support

Companies operating globally face additional complexity. Different countries have different equity compensation rules, tax treatments, and regulatory requirements.

Carta’s International Capabilities

As a larger platform, Carta has invested in international support:

• Multiple currency handling
• International tax considerations
• Global employee plans
• Multi-entity structures

Carta serves companies worldwide and has built features to handle common international scenarios.

Astrella’s Global Compliance

Astrella explicitly supports “globally regulated business” according to their feature comparison. This includes:

• IFRS compliance in addition to US GAAP
• International reporting standards
• Multi-jurisdiction support

The IFRS support is particularly notable. Companies with international investors or those considering non-US listings need IFRS-compliant reporting. Astrella’s 50+ reports are designed to support both ASC 718 and IFRS standards.

LLC and LP Support

Not all companies are C-corporations. LLCs and limited partnerships have different equity structures.

The comparison shows:

• Carta: Limited LLC/LP support
• Astrella: Full LLC and LP support

If your company uses an LLC or LP structure, this could be a deciding factor. Many cap table platforms focus on C-corp equity. Astrella’s explicit support for alternative structures may better fit your needs.

Integration and Ecosystem Connections

No software exists in isolation. Your cap table platform needs to work with accounting systems, HR platforms, and other tools.

Carta’s Integration Ecosystem

Carta has built numerous integrations over the years:

• Accounting software connections for expense tracking
• HRIS integrations for employee data
• Bank connections for exercise payments
• API access for custom integrations

Carta also connects founders with investors through their network. This goes beyond software integration into business development territory.

Astrella’s Integration Approach

Astrella, as part of AST Private Company Solutions, benefits from enterprise financial services infrastructure:

• Transfer agent services through parent company
• Valuation partner connections
• Document management integration

The valuation partner integration deserves mention again. Because Astrella uses external 409A providers, the handoff needs to be smooth. They’ve designed this to be “seamless for customer as the process is managed via the implementation manager.”

Real Customer Experiences: Case Studies and Testimonials

Theory is one thing. Real-world experience is another. Let’s look at what actual customers say about each platform.

Astrella Customer Stories

Disaster Technologies, Inc. (Disaster Tech)

Sean Griffin, co-founder and CEO, chose Astrella for their disaster recovery service company. Key factors in their decision:

• Need to stay compliant with financial obligations
• Desire to maintain business agility
• Requirement for transparency with employees and stockholders

The implementation gave them confidence that “we as a company are not only using modern technology to manage our stock plan but also ensure we’re in compliance. It puts us head and shoulders above our competitors.”

Griffin specifically mentioned the “checks and balance and customer commitment is second to none.”

Kohn’s Cap Table Experience

Another Astrella customer described the transformation from spreadsheets:

“Rather than waiting for Kohn to send an updated spreadsheet every so often, investors can log in directly to the portal and see the cap table for themselves.”

The platform became “one reliable source of truth that investors and employees alike can access.”

On implementation, this customer noted: “The most difficult part is setting it up. Fortunately, Astrella was really instrumental in giving us the support to build [our cap table] out properly. They provided information that was really important; it allowed me to save money in the long run.”

The specific savings came from being able to “set up the cap table with Astrella and then get my legal team to review it, rather than hiring my legal team to set up the entire cap table.”

Carta Customer Perspectives

Carta’s large customer base means a wide range of experiences. The platform has received industry recognition as a “Market Leader” with “substantial customer base and market share.”

Positive experiences often cite:

• Comprehensive feature set
• Professional interface design
• Industry standard status (investors recognize and trust it)
• Ecosystem connections for fundraising

Challenges reported include:

• Pricing escalation as companies grow
• Support quality inconsistency
• Less flexibility for unusual structures

Making the Choice: Which Platform Fits Your Company?

After examining all these factors, how do you decide between Carta and Astrella?

Consider Carta If:

• Brand recognition matters. Investors know Carta. Using it signals professionalism.
• You want integrated 409A valuations. One vendor simplifies vendor management.
• You value ecosystem connections. Carta’s network can introduce you to investors.
• You’re a standard C-corp. Carta’s workflows are optimized for traditional structures.
• Budget is secondary to features. You can afford premium pricing for comprehensive tools.

Consider Astrella If:

• Cost matters significantly. Astrella’s pricing scales more gradually.
• You need LLC or LP support. Astrella handles non-traditional structures better.
• Customization is important. Your equity structure has unique requirements.
• You want control over stakeholder communication. Astrella lets you direct all messages.
• High-touch support is valuable. Astrella’s dedicated implementation managers provide guidance.
• You prefer independent 409A valuations. External providers avoid conflicts of interest.
• Immutable record keeping matters. The ledger technology provides extra protection.

Decision Framework

Ask yourself these questions:

1. What’s your company structure? C-corp favors either. LLC or LP favors Astrella.
2. What’s your budget sensitivity? Cost-conscious favors Astrella.
3. How important is brand recognition? Investor-facing concerns may favor Carta.
4. Do you need extensive customization? Unique needs favor Astrella.
5. How do you want to handle 409A valuations? Integrated favors Carta. Independent favors Astrella.
6. What support level do you need? High-touch favors Astrella.

Conclusion: Carta vs Astrella Final Thoughts

Carta and Astrella both solve the same fundamental problem: managing equity accurately and compliantly. Carta brings market leadership, brand recognition, and comprehensive features at premium pricing. Astrella offers flexibility, competitive pricing, and personalized support with features like immutable ledger technology and LLC support. Your choice depends on your specific situation. Consider your company structure, budget constraints, customization needs, and support preferences. Both platforms can serve you well. The right choice is the one that fits your needs today and can grow with you tomorrow.

Frequently Asked Questions About Carta vs Astrella