Tender analysis for AEC · Checked 31 October 2026
ContraVault alternative: Ziva vs ContraVault AI (2026)
Choose Ziva if you want a published price per project, unlimited users and the full submission package produced, across any sector. Choose ContraVault AI if you are a construction, engineering or GovCon bid team that wants contradiction and risk finding in tender documents, connected to tools such as Procore and a separate takeoff product. ContraVault publishes no prices.
Choose Ziva if
A bid team in any sector that wants a public price, unlimited users and the proposal, forms, pricing sheet and presentation finished together.
Choose ContraVault AI if
An AEC contractor that wants deep risk and contradiction checks on large tender sets and ties into construction tools.
At a glance
Ziva and ContraVault AI, fact by fact.
Every ContraVault AI entry links to its source and shows when we checked it. Where we could not find a published fact, we left the row out.
| Fact | Ziva | ContraVault AI |
|---|---|---|
| Price model | ZivaOne published price per project. You choose how many new projects you open each month. | ContraVault AINot published. Starter, Professional and Enterprise, through a demo request. ContraVault AI pricing(opens in a new tab) Checked 31 October 2026 |
| Features by plan | ZivaThe same capabilities in every plan. Only the number of projects changes. | ContraVault AIFeatures vary by plan; API, integrations, SSO and audit trails are add-ons on Starter. ContraVault AI pricing(opens in a new tab) Checked 31 October 2026 |
| Public tender search | ZivaYes. The public tender directory on zephior.com/tenders is free to browse, without an account. Ziva Intelligence, search and analysis for one country, is CHF 199 per month. | ContraVault AINot described. The homepage mentions tracking RFPs but names no tender sources. ContraVault AI homepage(opens in a new tab) Checked 31 October 2026 |
| Fills the buyer’s own Excel and Word files | ZivaYes. Ziva fills the buyer’s own Excel workbook in place and works inside their Word templates, keeping tabs, layout and formatting. | ContraVault AIForms AI aims to identify and fill the tender’s forms with your company data. ContraVault AI homepage(opens in a new tab) Checked 31 October 2026 |
| Full proposal package | ZivaYes. Proposal, forms, pricing sheet and presentation as finished Word, Excel, PowerPoint and PDF files. | ContraVault AIProposal writing suite and bid package document attachment. ContraVault AI homepage(opens in a new tab)ContraVault AI pricing(opens in a new tab) Checked 31 October 2026 |
| Hosting | ZivaCloud hosting in Switzerland, the EU or the US. | ContraVault AIAWS infrastructure, with SOC 2 and ISO 27001 listed. Dedicated instance optional on Enterprise. ContraVault AI homepage(opens in a new tab)ContraVault AI pricing(opens in a new tab) Checked 31 October 2026 |
Ziva prices exclude VAT. See current pricing for every plan and currency.
In their own words
Where ContraVault AI falls short.
Taken from ContraVault AI’s own pages and from public reviews, each with its source.
No public price
The pricing page lists three plans with a feature matrix and a demo request, but no amounts.
ContraVault AI pricing(opens in a new tab)Built around construction
ContraVault presents itself for AEC, GovCon and enterprise bid teams, with construction integrations and a takeoff product.
ContraVault AI homepage(opens in a new tab)Extras on the entry plan
API access, integrations, SSO and audit trails are add-ons on Starter.
ContraVault AI pricing(opens in a new tab)
Where Ziva goes further
What changes for your bid team.
The buyer’s file comes back finished
Ziva fills the buyer’s own workbook, cell by cell, with its tabs and formatting intact, and writes the narrative inside their Word template. What you send back is their file, ready to submit.
The whole proposal package
Cover letter, contents, tables, charts, pricing sheet with working formulas and the presentation: Ziva produces the full package as Word, Excel, PowerPoint and PDF files.
Every answer shows its evidence
Each answer cites the documents it came from and shows a confidence score for how well your evidence supports it, preferring your newest approved wording. Reviewers approve, comment and restore earlier versions on the answer itself.
Priced per project, for the whole team
No platform fee and no seats. Every plan includes unlimited users, unlimited company knowledge and the same capabilities, monthly or annual.
What ContraVault AI does well
- Risk, contradiction and conflict finding across multi-document tender sets. ContraVault AI homepage(opens in a new tab)ContraVault AI pricing(opens in a new tab)
- Integrations with Procore, Autodesk Construction Cloud, PlanGrid and Microsoft Project. ContraVault AI homepage(opens in a new tab)
- A broad list of certifications, including SOC 2 and ISO 27001. ContraVault AI homepage(opens in a new tab)
Switching
Moving from ContraVault AI to Ziva.
- 1
Bring your answers and past bids
Export your answer library and recent submissions and upload them as they are, in Excel, Word or PDF. Ziva turns them into company knowledge with sources, with no column mapping.
- 2
Run one bid side by side
Take a tender you submitted before, or a live one, and run it in Ziva during your first month. Compare the finished files with your original submission.
- 3
Invite the whole team
Every plan has unlimited users, so subject experts, legal and finance can review in Ziva from the first bid without a seat budget.
- 4
Decide on evidence
If the first month does not convince you, ask for your money back. Keep your current tool until Ziva has produced a package you would send.
Questions
Ziva vs ContraVault AI: straight answers.
How much does ContraVault AI cost?
ContraVault publishes no prices; you request a demo. Ziva costs from CHF 500 (USD 650) per month for one project, with unlimited users.
ContraVault AI pricing(opens in a new tab)Does ContraVault fill tender forms?
It describes Forms AI that fills forms with company data. Ziva fills the buyer’s own Excel workbook in place and writes inside their Word template.
ContraVault AI homepage(opens in a new tab)Is ContraVault only for construction?
It targets AEC, GovCon and enterprise bid teams, with construction tool integrations. Ziva works across sectors.
ContraVault AI homepage(opens in a new tab)Sources and method
We read ContraVault AI’s own website and, where noted, public review pages. Last full check: 31 October 2026. Review quotes are short excerpts from the named page. Zephior publishes this page and sells Ziva; our facts follow our published pricing and product pages. If anything about ContraVault AI has changed, tell us at hello@zephior.com and we will correct it.
Try it on a real bid
Bring a tender you know.
Compare what comes back.
Run a live tender, or one you submitted before, in your first month. If Ziva does not convince you, you get your money back.