Postsig

Est. 2023 HQ United States Employees 21 Funding $1.2M Updated 2026-02-10
#490 / 1,674 rlegaltech 500 · overall
Rank trajectory2024-02 → 2026-06 · 29 months
CLIMBED +173From #663 (2024-02) to #490 today
#456#516#577#637#6972024-02: #6632024-03: #6662024-04: #6662024-05: #6022024-06: #6092024-07: #6032024-08: #6692024-09: #6642024-10: #6672024-11: #5952024-12: #5402025-01: #5422025-02: #5482025-03: #5582025-04: #5102025-05: #5072025-06: #5052025-07: #5032025-08: #5062025-09: #4842025-10: #4882025-11: #4882025-12: #5032026-01: #4992026-02: #5032026-03: #5082026-04: #5052026-05: #4992026-06: #490 #490 now Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Jun 26

How this is computed · one composite score, recomputed across all 29 months, ranked on a 3-month moving average

What it is Overview

PostSig is an early-stage post-signature contract intelligence platform aimed at in-house legal, procurement, finance, and capital-markets teams rather than traditional law-firm document management buyers. Its core pitch is ‘contract performance management’: ingest signed agreements, amendments, invoices, and side letters; connect them with LineageAI; and surface renewals, pricing drift, governance constraints, and obligation gaps before they turn into missed leverage or compliance problems. Evidence supports that it is a real vendor with some legal-market relevance: 110 branded searches/month, LegalTech Hub lists target audience as corporate legal, Law360 described it in September 2025 as serving legal and other teams, and the company announced a $4.1M seed round in September 2025. The problem is evidence quality: almost all workflow detail is vendor-claimed, public pricing is absent, public review-site coverage is effectively nonexistent, and there is little law-firm practitioner signal. Best fit appears to be enterprise in-house legal ops, procurement, PE/VC platform teams, and contract-heavy compliance environments, not solos or litigation practices.

Company Info

  • Founded: 2023
  • Team size: 1-10 employees
  • Funding: $1.2M
  • HQ: United States
  • Sector: Document Management & Storage, CLM & Contracting

What We Haven’t Verified

This page was assembled from publicly available information. Feature claims and workflow mappings are based on what the vendor and third-party listings publish — not hands-on testing or practitioner feedback.

Integrations 1 platform

Platforms Postsig integrates with. Depth — where curated — reflects how native the connection is. Uncurated entries render without a depth dot.

Deep — bi-directional API Medium — one-way sync / webhook Shallow — middleware / Zapier-class

Community ratings Coming soon
Alternatives 6 in Document Management

Other Document Management vendors in the directory. "Compare" pages are editorial and coming as we build them.

Funding
  • 1.2MTotal funding reported by the TLTF directory · founded 2023 · as crawled 2026-02-09source ↗

Round-by-round data (dates, round names, investors) is not in our source crawl — only the total is shown.

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