Government bid alerts · Checked 31 October 2026
BidSieve alternative: Zephior vs BidSieve (2026)
Choose Zephior if you want free tender search across many markets and then the bid itself written, with the buyer’s forms and template finished. Choose BidSieve if you are a small US contractor who wants a short weekly digest of SAM.gov and Cal eProcure matches with AI summaries, for $59 a month. BidSieve leaves the proposal to you.
Choose Zephior if
A team that wants to find tenders for free and have Ziva draft the response, fill the forms and assemble the package.
Choose BidSieve if
A small US federal or California contractor that wants 5 to 15 curated matches a week and a simple pipeline.
At a glance
Zephior and BidSieve, fact by fact.
Every BidSieve 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 | Zephior | BidSieve |
|---|---|---|
| Price model | ZephiorOne published price per project. You choose how many new projects you open each month. | BidSieveOne live plan, monthly or annual. BidSieve pricing(opens in a new tab) Checked 31 October 2026 |
| Published entry price | ZephiorCHF 500 (EUR 550, USD 650) per month for one project, falling to CHF 400 per project at 20 a month. Annual billing saves 10%. | BidSieveCore $59 a month, or $54 a month billed annually. Core + States and Premium not yet available. BidSieve pricing(opens in a new tab) Checked 31 October 2026 |
| Minimum commitment | ZephiorMonthly or annual. A monthly plan runs month to month. | BidSieveCancel anytime; access continues to the end of the billing period. BidSieve pricing(opens in a new tab) Checked 31 October 2026 |
| Trying it first | ZephiorStart paid, with a first-month money-back right: ask for a refund within the first month and you get the full amount back. | BidSieve14-day free trial, no credit card. Full refund within the first 30 days of a paid subscription. BidSieve pricing(opens in a new tab) Checked 31 October 2026 |
| Public tender search | ZephiorYes. 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. | BidSievePaid. SAM.gov and Cal eProcure, with a weekly digest of 5 to 15 matches. BidSieve homepage(opens in a new tab)BidSieve pricing(opens in a new tab) Checked 31 October 2026 |
| Full proposal package | ZephiorYes. Proposal, forms, pricing sheet and presentation as finished Word, Excel, PowerPoint and PDF files. | BidSieveNot described. It leaves proposal writing to you. BidSieve homepage(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 BidSieve falls short.
Taken from BidSieve’s own pages and from public reviews, each with its source.
Two sources, weekly
BidSieve monitors SAM.gov and California’s Cal eProcure, and sends one curated digest a week. More states are announced.
BidSieve homepage(opens in a new tab)BidSieve pricing(opens in a new tab)You still write the proposal
Its homepage says it handles the grunt work so you can focus on writing proposals.
“so you can focus on writing winning proposals”
BidSieve homepage(opens in a new tab)Higher tiers not live
State coverage and Premium with fit scoring are both marked not yet available.
BidSieve pricing(opens in a new tab)
Where Zephior goes further
What changes for your bid team.
Free search, then the bid
The public tender directory on zephior.com/tenders is free to browse without an account. When a tender fits, Ziva reads the full tender package and drafts the response.
Qualification on the documents
Before you commit a team, Ziva reads the tender documents against what your company can prove and shows where you are strong, where you are exposed and what only you can answer.
The submission files, finished
Ziva fills the buyer’s own Excel forms and price sheets, writes the proposal in their Word template and assembles the package as Word, Excel, PowerPoint and PDF files.
A bid team when you need one
Our Zelius bid team can take on a tender with you in the same workspace, scoped per bid.
What BidSieve does well
- A short, curated weekly digest instead of a noisy alert stream. BidSieve homepage(opens in a new tab)
- A low price, a no-card trial and a 30-day refund. BidSieve pricing(opens in a new tab)
- AI summaries and a pipeline from discovery to win or loss. BidSieve homepage(opens in a new tab)
Switching
Moving from BidSieve to Zephior.
- 1
Search the same market for free
Open zephior.com/tenders and search the countries and categories you monitor today. No account is needed to browse.
- 2
Take one tender into a bid
Pick a live tender, upload its documents and a few past bids into a Ziva project, and let Ziva qualify it and draft the response.
- 3
Measure the work left over
Measure what is left for your team: the forms, the price sheet and the proposal. That is where a bid is won or lost.
- 4
Decide on evidence
Each Ziva product has a first-month money-back right, so you can test it on a real bid before you change anything else.
Questions
Zephior vs BidSieve: straight answers.
How much does BidSieve cost?
Core is $59 a month, or $54 a month billed annually. Zephior’s public tender directory on zephior.com/tenders is free to browse without an account.
BidSieve pricing(opens in a new tab)Which sources does BidSieve cover?
SAM.gov and Cal eProcure today, with more states announced as coming soon.
BidSieve homepage(opens in a new tab)BidSieve pricing(opens in a new tab)Does BidSieve write proposals?
No. Ziva drafts the response, fills the buyer’s forms and assembles the package, from USD 650 (CHF 500) per month for one project.
BidSieve homepage(opens in a new tab)Sources and method
We read BidSieve’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 BidSieve 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.