BidSonar vs Stotles
Both products help suppliers find public-sector work, but they are built around different workflows. BidSonar is a free contract-and-grant directory for SMEs, with profile-led semantic matching and a winnability read. Stotles positions itself as a broader platform for public-sector sales and bid teams, combining tender tracking, market intelligence and AI-assisted bid workflows. Choose on the work you need to do, not a feature-count scorecard.
Stotles plan inclusions and coverage can change. This page compares the durable workflows Stotles describes publicly and links to its live pages for current details; it does not reproduce volatile prices or claim that an unlisted feature is unavailable.
Discovery and qualification
Stotles publicly describes configurable feeds built with keywords and CPV codes, supported by AI relevancy tools, notice summaries and bid qualification. BidSonar starts with a plain-English description of your business and semantically matches opportunities against that profile, showing a confidence score on each result. Stotles offers more ways to configure and work an opportunity; BidSonar keeps discovery deliberately narrow and profile-led.
Product scope
Stotles is the broader platform. It brings together tender tracking, buyer and supplier intelligence, contacts, integrations, bid qualification and AI-assisted drafting. BidSonar is not a bid-writing suite or CRM: it is a free public directory and personalised intelligence briefing for deciding what to pursue, whether the field looks open and who might strengthen a bid. If you need a shared sales-and-bid workspace, Stotles is the closer fit.
Coverage and access
Both products aggregate core public-procurement sources. Stotles also describes coverage across regional and buyer-specific portals, while BidSonar publishes Innovate UK and UKRI grant opportunities alongside contracts. BidSonar's contract, grant and organisation directories are public, and its matching and alerts are free. Stotles controls its own plan inclusions and access terms, so the live Stotles pages linked below are the source of truth for those details.
Choose Stotles if
- You want one workspace spanning public-sector sales and bid delivery
- You need configurable feeds, regional coverage and buyer-specific sources
- You want AI assistance qualifying and drafting bid responses
- You need decision-maker contacts, market intelligence and CRM integrations
Choose BidSonar if
- You want a free public directory of contracts, grants and organisations
- You prefer a profile-led briefing to maintaining saved searches
- You want an incumbency, field-openness and potential-partner read
- You do not need bid drafting, contact data or a CRM-style workspace
- Is BidSonar a free alternative to Stotles?
- It overlaps with Stotles on opportunity discovery, but it is not a feature-for-feature replacement. BidSonar provides a free public directory, profile-led matching, alerts and a winnability read. Stotles offers a broader sales and bid workflow; check its live pricing page for current plan inclusions.
- Does BidSonar have saved searches?
- No. You describe your business once and semantic matching surfaces relevant opportunities with a confidence score. Stotles offers configurable searches and feeds if direct query control is important to your workflow.
- Can I use both?
- Yes. BidSonar can provide a profile-led contract-and-grant briefing, while Stotles can support a broader sales or bid-management workflow. Whether both are useful depends on the work your team needs to manage.
See it for yourself.
The whole index is free to browse, signed out — or describe your business and see what matches.
A premium UK public-sector market-intelligence platform spanning early opportunities, tenders, awards, frameworks, spend and buyer contacts.
A UK tender-search product built around direct keyword and category search, with alerts, historic awards, contract pipelines and market-data options.