Fundraising, deal flow, portfolio monitoring, investor portals, and an AI analyst, joined in a single operating system. Built inside a working venture fund, sold to firms that allocate capital for a living.
Seam OS was built to run a real venture fund's raise, pipeline, portfolio, and investor relations. Every screen exists because a partner needed it that week. It has run a live raise since 2026. Then we productized it, so firms like yours can run on it too.
Run the raise like a pipeline, not a spreadsheet.
From first look to term sheet in one board.
Positions, rounds, and performance without the quarterly scramble.
Your firm's real edge, mapped and queryable.
LPs and founders serve themselves, securely.
The quarter closes itself.
Every LP prospect moves through your stages with history, probability, and next actions. When it is time to call capital, pro-rata notices generate per LP and land in their portals, and every capital account stays current: contributed, distributed, unfunded, NAV.
Inbound founders submit through your own intake page and arrive pre-scored against your thesis. Your team works one board, from first meeting to closed.
Rounds, distributions, ownership, and quarterly marks recorded as they happen. TVPI, DPI, MOIC, and net IRR computed from the same ledger, ready for the next LP meeting and the next audit.
The relationship graph maps every person and organization your firm touches, then answers the question that actually matters: what is the warmest path to the person we need.
Each investor signs in with a magic link and sees exactly their fund: statement, NAV by funded share, documents, letters, and a direct line to you. Founders get the same treatment for KPIs.
Most funds stitch together a relationship CRM, an LP reporting tool, a KPI collector, a portfolio model, a data room, and an investor portal, then pay each one per seat, per year. Seam OS is all six in one install, one login, one database.
Seam OS ships AI-native. It reads your inbox, scores your deal flow, drafts your memos, and answers questions about your own data in plain language.
Ask the fund's data anything. The answer comes from your database, not the open internet.
Memos, enrichment, and next-best-action drafts generated from the record you already keep.
A weekly digest of the whole firm: pipeline movement, portfolio updates, and what needs a partner's eyes.
The AI runs on your subscription, not our meter. Seam OS brokers AI work through your own Claude subscription or key. We never charge per seat, per token, or per question, and your data never becomes anyone's training set.
Most fund software puts your LP list in someone else's multi-tenant cloud. Seam OS gives every firm its own isolated instance, hosted for you or on your own infrastructure.
Your entire firm in a single SQLite file. Copy it, back it up, take it with you. No export ransom.
Staff, investor, and founder roles enforced at the server gate. Investors see only their own fund.
Every write is logged with who, what, and when. Compliance reviews stop being archaeology.
TLS on every connection and instance disks encrypted at rest. Nightly verified snapshots pulled off the instance, kept on infrastructure you control.
The demo runs a fictional fund with a full raise, pipeline, and portfolio. Sign in as any role at os.seam.capital. The instance resets itself, so click anything.
Dashboard, raise, deals, portfolio, graph, inbox, AI.
Statement, NAV, documents, letters, messaging.
KPI reporting and a direct line to the fund.
Demo data is fictional. Your instance starts empty, imports from your spreadsheets, and lives on its own isolated server from day one.
We onboard a small number of founding firms directly: your instance stood up, your data imported, your team trained. You'll talk to Greg Spero, who built Seam inside the fund it runs and answers this address himself.