Carta vs Pulley vs OpenCap Stack: 2026 Feature and Pricing Comparison

Choosing the right cap table software is one of the most consequential infrastructure decisions a startup can make. Get it wrong and you are looking at painful data migrations, compliance headaches, and investor friction at exactly the moments you can least afford them.

This guide cuts through the marketing to give you a clear-eyed comparison of the three most-discussed platforms in 2026: Carta, Pulley, and OpenCap Stack. We cover pricing, features, OCTA compliance, and which platform makes sense for which stage of company.

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TL;DR Comparison Table

| Feature | Carta | Pulley | OpenCap Stack |

|---|---|---|---|

| Starting Price | ~$2,000/year | ~$500/year | Free (self-hosted) |

| Managed Cloud | Yes | Yes | Yes (paid) |

| 409A Valuations | Built-in (extra cost) | Partner network | Built-in |

| Investor Portal | Yes | Yes | Yes |

| OCTA Compliance | Partial | Partial | Full |

| Open Source | No | No | Yes |

| API Access | Enterprise tier | Growth tier | All tiers |

| Document Management | Yes | Limited | Yes |

| SAFE Support | Yes | Yes | Yes |

| Best For | Growth/Enterprise | Early-stage | All stages |

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Carta: The Market Leader With Enterprise Price Tags

Overview

Carta launched in 2012 and became the default choice for VC-backed startups after securing integrations with most major law firms and fund administrators. Today it manages cap tables for tens of thousands of companies and billions in equity value. That market position comes with real advantages — and real costs.

What Carta Does Well

Ecosystem depth: Carta has the deepest integration with the venture ecosystem. Most Series A and later investors expect to see equity on Carta. Many law firms use Carta's legal tools to issue stock option grants. The network effects are real.

Fund administration: If you have complex fund structures or need LP waterfall calculations, Carta's fund administration product is genuinely excellent. It is the reason most fund managers stick with the platform even when they find it expensive.

409A valuations: Carta's in-house 409A team delivers fast turnaround — often under two weeks — and the reports carry strong auditor acceptance. The process is smoother than coordinating with third-party valuation firms.

Employee equity experience: Carta's employee-facing portal is polished. Employees can model scenarios, view vesting schedules, and exercise options with minimal friction.

Carta's Weaknesses

Cost escalation: Carta's pricing is notoriously opaque and scales aggressively with the number of stakeholders and equity holders. Companies that started at $2,000/year have reported bills exceeding $20,000/year after a Series B without materially changing their usage.

Lock-in risk: Exporting your data from Carta in a clean, standards-compliant format is harder than it should be. Several companies have reported that their data export looked complete but had missing vesting schedule details that only surfaced during a subsequent audit.

OCTA compliance gaps: Carta's internal data format predates the Open Cap Table Alliance schema. While Carta has made moves toward compatibility, imports and exports do not always map cleanly to the OCTA standard — which creates friction when switching platforms or working with tools that expect OCTA-formatted data.

Customer support: At non-enterprise tiers, Carta's support response times have declined as the company has grown. This is a consistent complaint in founder communities.

Carta Pricing (2026)

Carta does not publish transparent pricing, which is itself a red flag for companies trying to budget accurately. Based on publicly available data and founder reports:

Note that Carta's sales team has significant discretion on pricing, so actual quotes can vary considerably from these ranges.

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Pulley: The Startup-Friendly Challenger

Overview

Pulley launched in 2019 with an explicit goal of being the cap table platform that early-stage founders actually want to use. The product is cleaner, the pricing is more transparent, and the onboarding is significantly faster than Carta. Pulley has grown quickly in the seed and Series A market.

What Pulley Does Well

Pricing transparency: Pulley publishes its pricing. That alone is a meaningful differentiator versus Carta. Founders know what they are committing to before they sign up.

Onboarding speed: Setting up a cap table on Pulley typically takes a few hours, not days. The import tools for existing cap tables — including imports from Carta — are well-designed.

Scenario modeling: Pulley's dilution modeling and scenario planning tools are genuinely good. The waterfall analysis for exit scenarios is clear and useful for board presentations.

Support quality: At current scale, Pulley's support team is responsive and technically knowledgeable. Founders consistently rate it better than Carta at equivalent price points.

Clean UI: Pulley's interface is modern and requires less training for founders and finance teams who are not cap table experts.

Pulley's Weaknesses

Ecosystem integrations: Pulley does not have Carta's depth of ecosystem integrations. Some law firms and fund administrators that work seamlessly with Carta require manual export/import workflows with Pulley.

Document management: Pulley's document management capabilities are limited compared to Carta. For companies with complex document workflows — NDAs, board resolutions, SAFE agreements — Pulley's storage and organization tools feel thin.

409A valuations: Pulley partners with third-party valuation firms rather than providing in-house 409A services. This typically means longer turnaround times and more coordination overhead.

API limitations: Pulley's API is available but limited to higher pricing tiers. For companies that want to build custom integrations or sync equity data with their HRIS, this is a meaningful constraint on lower plans.

Scale uncertainty: As a younger company, Pulley has less track record supporting complex late-stage cap tables with hundreds of stakeholders and multiple share class series. This is worth monitoring as you plan your growth trajectory.

Pulley Pricing (2026)

Pulley publishes pricing on its website, which we appreciate:

Pulley is roughly 3–5x cheaper than Carta at equivalent feature levels, which matters a great deal for pre-revenue and early-revenue companies.

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OpenCap Stack: The Open Source Alternative

Overview

OpenCap Stack is an open-source cap table management platform built in alignment with the Open Cap Table Alliance (OCTA) schema from day one. It is available as a free self-hosted deployment and as a managed cloud service. For technical founders or companies with engineering resources, OpenCap Stack offers capabilities that neither Carta nor Pulley can match at any price point.

What OpenCap Stack Does Well

OCTA compliance: OpenCap Stack is the only platform in this comparison built from the ground up on the OCTA schema. This means your data is portable, standards-compliant, and interoperable with any tool that follows the open standard. No lock-in.

Full API access: Every feature in OpenCap Stack is accessible via API on all tiers, including the free self-hosted version. This is a fundamental difference from Carta and Pulley, which gate API access behind higher pricing tiers. Companies building equity into their product workflows, HRIS integrations, or automated reporting pipelines will find this transformative.

Document management: OpenCap Stack includes robust document management with data rooms, version control, and document generation. This matches or exceeds Carta's document capabilities at a fraction of the cost.

409A valuations: Built-in 409A valuation request workflow is included in OpenCap Stack. The platform manages the full process including document collection, submission, and audit trail.

Transparency and auditability: Because OpenCap Stack is open source, every calculation — dilution, waterfall, vesting — can be audited against the source code. For companies that care deeply about the accuracy of their equity calculations, this is a meaningful trust advantage.

No per-stakeholder pricing: OpenCap Stack does not charge per stakeholder. Whether you have 10 shareholders or 500, the cost structure does not change in the way it does with Carta.

MCP integration: OpenCap Stack ships with a native MCP (Model Context Protocol) server, allowing AI agents and tools to interact with cap table data programmatically. This positions it well for the emerging category of AI-native financial operations.

OpenCap Stack's Weaknesses

Ecosystem brand recognition: Investors and law firms recognize Carta. OpenCap Stack does not yet have the same ecosystem mindshare. In practice, this rarely matters for day-to-day operations — your equity is equity regardless of which platform stores it — but some late-stage investors may ask questions if they see a less-familiar platform name.

Requires engineering resources for self-hosted: The free self-hosted version requires infrastructure management. For non-technical founding teams, the managed cloud version removes this burden, but it adds cost.

Smaller support community: Carta and Pulley have large customer success teams. OpenCap Stack's managed service includes support, but the community is smaller. This is changing quickly, but it is honest to acknowledge where it stands today.

Newer platform: OpenCap Stack has less track record than Carta's decade-plus history. That said, the core technology is solid and the OCTA alignment ensures future interoperability regardless of what happens to the platform.

OpenCap Stack Pricing (2026)

OpenCap Stack has the most flexible pricing model in this comparison:

For companies with any engineering capacity, the self-hosted option delivers enterprise-grade cap table management at infrastructure cost only — often under $50/month on a small cloud VM.

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Feature-by-Feature Comparison

Cap Table Management

All three platforms handle the core cap table — share classes, equity grants, option pools, SAFEs, convertible notes. The differences are in depth and flexibility.

Carta handles the most complex scenarios including multi-class structures, participating preferred, and complex anti-dilution provisions. Pulley covers the common cases cleanly. OpenCap Stack, being OCTA-aligned, has the most standardized and portable data model — which matters more as your cap table complexity grows and you want flexibility in tooling.

Document Management

Carta: Comprehensive document storage, e-signature integration, board consent workflows.

Pulley: Basic document storage; limited workflow automation.

OpenCap Stack: Full data room management, document generation, version control, and access controls. Comparable to Carta's document capabilities.

409A Valuations

Carta: In-house team, fast turnaround, strong auditor acceptance. Additional cost.

Pulley: Partner network, coordinated through the platform. Slower and requires more manual coordination.

OpenCap Stack: Built-in request workflow; partners with accredited valuation firms. Process is streamlined within the platform.

Investor Portal

All three platforms offer investor portals where shareholders can view their equity positions, model scenarios, and access documents. Carta's investor portal is the most polished and has the most investor adoption. Pulley's is clean and functional. OpenCap Stack's is fully API-driven, which enables more customization for companies that want branded experiences.

API and Integrations

Carta: API available at enterprise tier only. Pre-built integrations with major HRIS systems at higher tiers.

Pulley: API available at Growth tier and above. Fewer pre-built integrations than Carta.

OpenCap Stack: Full API access on all tiers including free. MCP server included. Integrations via API with any system. For technical teams, this is a significant advantage.

OCTA Compliance

This is where OpenCap Stack stands apart. The Open Cap Table Alliance schema is the emerging standard for cap table data portability. Carta and Pulley have partial support — you can export data in OCTA format, but the internal representation does not map cleanly to the standard in all cases.

OpenCap Stack is OCTA-native. The data model is the OCTA schema. This means imports, exports, and integrations work without data translation layers.

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Which Platform Is Right for You?

Early-Stage Startups (Pre-Seed, Seed)

Best choice: Pulley or OpenCap Stack

At this stage, Carta's pricing is hard to justify. You do not yet have the stakeholder complexity that requires Carta's advanced features, and you do not have the budget for Carta's price escalation.

Pulley is the right choice if you want a managed solution with minimal setup, clean UI, and predictable pricing. OpenCap Stack is the right choice if you have any engineering capacity and want full API access, OCTA compliance, and zero lock-in from day one.

For technical founding teams, OpenCap Stack's self-hosted option at effectively zero cost — with full feature parity — is very hard to argue against.

Growth-Stage Companies (Series A, Series B)

Best choice: OpenCap Stack managed cloud or Carta (with negotiation)

At Series A and B, your cap table complexity increases meaningfully. You are adding option pools, potentially doing secondary transactions, and your investors are paying closer attention to your equity records.

OpenCap Stack's managed cloud handles this complexity well and its API access becomes genuinely valuable as you build equity-adjacent workflows. Carta is defensible at this stage if your investors or law firm strongly prefer it — but negotiate hard on pricing.

Pulley remains a good option at Series A but may feel limiting by Series B if you have complex structures or significant API needs.

Enterprise and Late-Stage

Best choice: Carta or OpenCap Stack Enterprise

At late stage, Carta's ecosystem depth, fund administration capabilities, and investor familiarity carry real weight. If you are on a path to IPO, Carta's track record with public company transitions is meaningful.

However, OpenCap Stack Enterprise is increasingly viable for companies that want full control over their data, deep API integration, and the flexibility of open source. For companies that have made OCTA compliance a strategic priority — particularly those building equity-adjacent products — OpenCap Stack is the only defensible choice.

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Conclusion

The cap table software market has meaningful choices in 2026, and the right answer depends heavily on your stage, technical resources, and priorities.

Choose Carta if you are at growth or late stage, your investors expect it, and you have negotiating leverage on price. Accept that you are paying a premium for ecosystem integration and brand recognition.

Choose Pulley if you are early-stage, want managed software without Carta's price tag, and do not need deep API access or complex document management. It is a clean, honest product at a fair price.

Choose OpenCap Stack if you value data portability, OCTA compliance, and full API access. For technical founding teams, the self-hosted option at any stage is extremely compelling. For growth-stage companies that want Carta-level features at Pulley-level pricing with genuine open standards compliance, OpenCap Stack's managed cloud is worth serious consideration.

The trend line is clear: open standards are winning in every other part of the software stack. Cap table management will follow.

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Looking for more context? See our related guides: Carta Alternatives in 2026 and Best Cap Table Software for Startups.

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