Postsig

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.