Hemrock

Hemrock Portfolio is an open-source venture-fund platform for turning company updates into portfolio metrics and LP reporting. It is best suited to lean managers who can operate their own infrastructure or want a hosted option. Its strongest case is control and a free self-hosted core; the trade-off is the operational work that comes with running it yourself.

Overview

Teams can forward founder updates as PDFs, Excel files, PowerPoint presentations or plain text. AI extracts metrics and flags uncertain results for review, so it can reduce manual transcription without removing the need to check questionable figures. Portfolio charts MRR, burn, headcount and custom KPIs over time, then can draft quarterly LP letters and investor report cards. That connects company-level reporting to fund updates, though the quality of the resulting picture still depends on reviewing flagged extracts and collecting updates.

Portfolio is free and open source under Apache License 2.0, with permission to modify and deploy it for personal or commercial use. Hemrock says it is designed to run on the customer’s infrastructure, database and AI keys, and that portfolio data is not shared with other funds or used to train models. Those controls suit firms that want custody of their data; they also mean self-hosted users own the hosting environment and its upkeep.

Key features

• Portfolio monitoring: Historical charts for standard measures and custom KPIs help managers follow company performance across reporting periods rather than rely on isolated updates.
• Fund operations: The optional Fund Operations product adds a double-entry ledger for funds, SPVs, direct deals or GP entities, plus period closing and a compliance calendar. It broadens Hemrock beyond portfolio reporting for teams seeking those operations in the same product family.
• AI and data access: Users can bring keys for Anthropic, OpenAI, Google Gemini or OpenRouter, or use local models through Ollama. A fund API and MCP server expose portfolio data and tools to scripts and AI clients, scoped to the access permitted by the key or user.
• Integrations: A prebuilt, one-way Affinity integration imports deal and relationship data into portfolio and diligence views. Its one-way direction suits teams bringing Affinity data in, but does not provide a two-way sync.
• Ownership and cap-table tools: Share class tracking, option management, dilution scenarios, fundraising modeling and multiple export formats support related portfolio and financing workflows.

Pricing

The free plan is the clearest fit for teams comfortable managing their own deployment: it covers all funds, SPVs and team members without seat charges, but does not remove infrastructure costs or operating responsibility. Hosted trades that work for a recurring charge and includes maintenance, onboarding and support. The one-time setup option keeps deployment on your infrastructure and pays for implementation and migration rather than hosted operations. Support hours are Monday to Friday, 9 AM to 4 PM EST; Hemrock also offers email, phone and WhatsApp support on understanding and using its models.

Platforms

Portfolio is available as a web product, API and self-hosted deployment. Its architecture and local-model support will appeal to teams that want to keep systems and AI choices under their control, while the hosted plan offers an alternative for managers who do not want to maintain the environment themselves.

Who it's for

Hemrock describes Portfolio for SPVs, solo GPs, emerging managers, angels, syndicates, and micro and seed funds. It is most compelling for small teams that want structured portfolio monitoring and investor reporting without per-seat software fees, especially when self-hosting is acceptable. Firms seeking a fully managed workflow should weigh the hosted plan; teams that do not need the reporting and portfolio layer may find this broader platform unnecessary.

Pros and cons

• Pros: Free, open-source software with no per-seat fees makes the self-hosted option accessible across funds, SPVs and teams.
• Pros: Several document formats, metric charts and draft LP communications connect update collection with ongoing monitoring and reporting.
• Pros: Customer-provided AI keys, local-model support and self-hosting give managers meaningful control over infrastructure and model choice.
• Cons: Self-hosting puts deployment and infrastructure operation on the customer, with estimated running costs that can reach roughly $75 a month.
• Cons: AI flags uncertain extraction results for review, so teams still need a validation step before relying on the figures.
• Cons: The Affinity integration is one-way, limiting its usefulness for teams that need reciprocal data synchronization.

Alternatives

For fund administration comparisons, see Fund Administration Software; for ownership and financing workflows, browse Cap Table Management Software.

Keel is another freemium, web-and-API option. Its free plan covers one entity and 10 active investors with no time limit or credit card requirement, making it worth considering when those caps fit better than a self-hosted deployment.

Juniper Square is a paid alternative available on web, API, Android and iOS.

AdminSphere is a paid, multi-platform alternative with client-specific pricing that may vary by jurisdiction.

Dynamo CRM & Deal Management is a paid, multi-platform alternative with ballpark pricing via demo request.

Allvue Investment Management is a paid web and extension option with custom pricing available by demo request.

aama.io is a paid alternative with a Syndicate SPV plan priced at $2.50, paid once per deal, capped at a USD 3,500 minimum and USD 10,000 maximum, and a Fund Administrators plan at $1,500 a month.

Ark is a paid web-based alternative.

Formidium is a paid web-based alternative.

Verdict

Choose Hemrock if you are a lean venture manager who wants portfolio updates, metric monitoring and investor reporting under your control, with an open-source option that carries no per-seat software fee. Its main advantage is the combination of data control and practical reporting; look elsewhere if you want to avoid infrastructure responsibility or need a two-way Affinity sync.