6 Oct 2026 · TrustList Editorial
Island raises $400M to govern AI agents from its enterprise browser
The Series F, led by Evolution Equity Partners at a $6.4B valuation, pays for an "agentic control plane" that has no release date yet.
4 of 10 proposal management software ranked on evidence in the Q4 2026 edition.
Between them, the 10 proposal management software on this page cover content library (9), document management (9), templates (8) and version control (7). 10 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
4 of 10 proposal management software ranked on evidence held on 6 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.
Positions are fixed for the quarter; the next edition is due in January 2027.

Content Library · Document Management · Version Control
VisibleThread Docs is a document analysis offering from VisibleThread.
Why #1: No major incidents in 90 days (status page)
Not yet on record: client reviews, vetting.

Knowledge Base Management · Content Library · Document Management
Tilkee is a platform in French for sending commercial documents through a single secure link and seeing how recipients engage with them.
Why #2: No major incidents in 90 days (status page) · Placed below first here: a listing leads at most 5 rankings
Not yet on record: client reviews, vetting.

Knowledge Base Management · Content Library · Document Management
GetAccept is a digital sales room platform with proposal, quote and contract tools for revenue teams.
Why #3: SOC 2 Type II, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Content Library · Document Management · Version Control
Prospero is online software for building business proposals, sending them and collecting signatures. It tracks how each proposal is received so users can time their follow-up.
Why #4: GDPR compliant, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Content Library · Document Management · Version Control
Proposal Kit is downloadable software and a template library for writing business proposals, quotes, plans and contracts.

Content Library · Document Management · Version Control
QuoteCloud is business proposal and sales quotation software made by Corporate Interactive, a Sydney software and web development company.

Knowledge Base Management · Content Library · Document Management
Zbizlink is a portfolio and proposal management tool delivered through a cloud-based dashboard. It helps teams create proposals and watch their progress alongside other projects.

Content Library · Document Management · Version Control
Capture2Proposal is a software platform, sold as GovCon OS, for companies that bid on United States federal government contracts.

Electronic Signature · Collaboration · Templates
NiftyQuoter is online proposal software for building quotes and proposals from reusable templates and sending them to clients by email.

Content Library · Document Management · Pipeline Management
Zywave CPQ is the quoting and proposals product within Zywave's sales tools for insurance agencies and brokerages.
For vendors
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Every other way we rank proposal management software, by what they do and where they are.
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