
ContraVault AI
ContraVault AI · Productivity
ContraVault AI reads full tender packs for construction and engineering bidders, scoring bid fit, flagging risky clauses and drafting proposal sections with clause-level citations.

About ContraVault AI
What Is ContraVault AI
ContraVault AI is an AI tender analysis platform and tender management platform built for teams that bid on large infrastructure and construction work. You upload the whole bid package, specs, forms, schedules, drawings and addenda included, and the system turns it into a decision file: what the client demands, where the commercial risk sits, and whether the job is worth chasing.
Older construction bid software assumes someone will read the documents eventually. RFP analysis software that only summarizes the pack leaves the checking to you. ContraVault assumes nobody has time, and each finding links back to the clause it came from, so a bid manager can check the reasoning. That matters when a liquidated damages clause or a payment term decides your margin.
The limits are worth knowing up front. It reads documents and drafts text. It does not price the job for you, and the takeoff work sits in a separate product, theTakeOff.AI. Small tenders under a few dozen pages rarely justify the setup, and there's no self-serve plan, so you'll talk to sales before you see the interface.
Getting Started
- Book a demo through the site and get a workspace set up for your team.
- Enter your own bid criteria: eligibility rules, red flags, financial limits, the checks your commercial lead already applies by hand.
- Upload a live bid package, including BOQ files, schedules and any corrigenda.
- Review the go/no-go score and the ranked risk list, then export the pack for technical, commercial and leadership review.
- Draft clarification questions and proposal sections from the same workspace, or push the exceptions list into your estimating workflow.
Product Information
A quick look at ContraVault AI's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Bid and proposal managers at general contractors
- Preconstruction and estimating leads
- Commercial and contracts managers at EPC and energy firms
Tasks
- Bid/no-go screening
- Risk review of onerous terms
- Pre-bid clarification drafting
- Proposal first drafts
Scenarios
- A multi-volume tender lands with three weeks to submission and two estimators on leave
- An addendum changes the scope halfway through
- Technical, commercial and legal reviewers disagree about a clause
Key features
Go/No-Go scoring against your own criteria
You define the checks once, eligibility gates, red flags, financial ceilings, and every new tender gets scored against them. What used to be a bid/no-go decision made from memory becomes a recorded scorecard with the failed checks named. The output names which checks failed and links to the clause behind each one. Teams that used to argue from memory now argue from the same baseline.
Clause-level risk flags with dollar impact
The risk analyzer pulls out liquidated damages, indemnities, warranties, termination rights and non-standard payment terms, then ranks each by severity and estimated cost. A dollarized number is a guess, not gospel, but it forces the conversation about which risks you're pricing and which you're absorbing. Exports land in Excel or PDF for the bid review meeting.
Contradiction finder across the whole package
Risk hides between documents as often as inside them. The tool compares specs, schedules, exhibits and addenda against each other and lists where requirements conflict or where a figure changes between volumes. Catching one contradictory dimension before submission often pays for the subscription.
AI bid synopsis
Long tenders get compressed into a structured summary: scope, key dates, submission requirements, commercial terms, evaluation criteria. It's the document you circulate to people who will never open the 600-page original. Each line keeps its reference, so anyone can jump to the source.
Pre-bid clarification and RFI drafting
Ambiguous scope and missing drawings turn into draft questions addressed to the client, written in the register tender documents expect. ContraVault reports 25,000+ clarifications drafted across its user base. Editing the wording still falls to you, and that's the right split.
Proposal drafting and form auto-fill
AEC proposal software lives and dies on reuse, and this suite drafts responses using your library of past submissions and the tender's own headings, then fills recurring forms from stored company data. What you get is a workable first draft with the right structure, not a finished submission. Expect your writers to spend their time on win themes and evidence instead of formatting.
Pros and cons
Pros
- Every finding cites its source clause, so reviewers can audit the AI instead of taking a summary on faith.
- Risk scoring carries a dollar figure and a likelihood, which gives commercial teams a language leadership already understands.
- Addenda handling is built in, letting you re-run analysis and see only what changed.
- Document types match AEC reality: BOQs, schedules, drawings, forms and corrigenda are treated as one package.
- Shared workspaces with roles, comments and tasks keep estimators, contracts and subject experts on one version of the truth.
Cons
- No free plan and no self-serve signup. You can't test the interface with a real tender until a demo call happens, which slows down evaluation.
- Pricing isn't published. Comparing Starter against Professional means asking for a quote, and add-ons for API access, SSO, integrations and audit trails sit outside the headline number.
- Quantity takeoff lives in theTakeOff.AI, a separate product. If you expect one login to cover estimating and bid review, that expectation breaks.
- The tool reads documents and drafts language. Judgement on what to bid, and at what margin, stays with your team, so a small bid team still needs the same reviewers it had before.
Frequently asked questions
AI RFP review here means one pass over a full tender package: it extracts requirements, flags risky or contradictory clauses, produces a go/no-go score and drafts clarification questions plus proposal sections. Think of it as the first reviewer on every bid, one that never skips a page and always shows its source.
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