Welcome to the Investors API The Investors API provides access to comprehensive venture capital and investor data aggregated from across the web. Our platform continuously monitors and collects information on VCs, angel investors, private equity firms, corporate investors, and more, giving you up-to-date intelligence on the investment landscape.
Investors Endpoint View the complete OpenAPI specification
Count Mode You can get the total number of results matching any filter combination without consuming credits by adding count=true to your request. This returns an empty data array with full pagination metadata, including totalCount.
curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?count=true&type=vc,angel&countries=US" \ -H "Authorization: Bearer YOUR_API_KEY"
Response: { "success" : true , "data" : [], "pagination" : { "currentPage" : 1 , "totalPages" : 22 , "totalCount" : 430 , "hasNextPage" : true , "hasPreviousPage" : false }, "meta" : { "endpoint" : "signals.investors" , "creditsUsed" : 0 } }
Use count mode to preview how many results match your filters before fetching actual data. This is useful for building filter UIs, showing result counts, or validating queries — all at zero credit cost.
Key Features
Comprehensive Coverage : Access data on VCs, angels, PE firms, corporate investors, hedge funds, crowdfunding platforms, and moreAdvanced Filtering : Filter by countries, investor types, HQ location, and ticket size rangesFlexible Sorting : Sort by name, created date, or ticket sizeDate Filtering : Filter by created date or use date presets for relative rangesPagination Support : Efficiently retrieve large datasets with up to 100 results per pageRich Investor Data : Detailed information on investment focus, portfolio, and contact detailsCredit-based Usage : Transparent credit consumption per API call
Service Level
Rate Limit : Based on your subscription tierUptime : 99% guaranteed uptimeData Freshness : Continuously updated investor informationMaximum Results : Up to 100 results per page
Authentication All API endpoints require authentication using a Bearer token passed in the Authorization header.
curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?page=1&limit=20&type=vc" \ -H "Authorization: Bearer YOUR_API_KEY"
Query Parameters Parameter Type Default Description pageinteger 1 Page number limitinteger 20 Results per page (max: 100)
Date Filters Parameter Type Description dateFromstring Filter by created date from (ISO-8601 string) dateTostring Filter by created date to (ISO-8601 string) date_presetstring Relative date shorthand — takes precedence over dateFrom/dateTo. See Date Presets
Investor Filters Parameter Type Description countriesstring Comma-separated country codes (e.g., US,GB,DE) typestring Comma-separated investor types. See Investor Types categoriesstring Legacy: pipe-separated investor types (same values as type) headquartersstring Search by HQ location (partial match) searchstring Free-text search across investor name & type
Numeric Range Filters Parameter Type Description ticket_size_mininteger Minimum ticket size in USD ticket_size_maxinteger Maximum ticket size in USD
Sorting Parameter Type Default Description sort_bystring created_atSort field: name, created_at, ticket_size_min, ticket_size_max sort_orderstring descSort direction: asc or desc
Investor Types The API supports filtering by the following investor types:
vc : Venture Capital firmsangel : Angel investors and angel groupspe : Private Equity firmscorporate : Corporate venture arms and strategic investorsgovernment : Government-backed investment entitiesaccelerator : Startup accelerators and incubatorsfamily_office : Family officeshedge_fund : Hedge fundscrowdfunding : Crowdfunding platforms
Response Structure All successful responses follow this structure:
{ "success" : true , "data" : [ { "id" : "uuid-here" , "name" : "Sequoia Capital" , "investorType" : "vc" , "country" : "United States" , "description" : "Leading venture capital firm..." , "website" : "https://www.sequoiacap.com" , ... } ], "pagination" : { "currentPage" : 1 , "totalPages" : 10 , "totalCount" : 200 , "hasNextPage" : true , "hasPreviousPage" : false }, "meta" : { "endpoint" : "signals.investors" , "creditsUsed" : 1 } }
Error Handling The API returns standard HTTP status codes:
200 : Success401 : Unauthorized - Invalid or missing API key429 : Rate limit exceeded500 : Internal server error
Error responses include:
{ "success" : false , "error" : "Error message description" }
Example Usage Filter by Investor Type curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?type=vc,angel&countries=US" \ -H "Authorization: Bearer YOUR_API_KEY"
Filter by Ticket Size Range curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?ticket_size_min=100000&ticket_size_max=5000000" \ -H "Authorization: Bearer YOUR_API_KEY"
Search by HQ Location with Sorting curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?headquarters=San%20Francisco&sort_by=name&sort_order=asc" \ -H "Authorization: Bearer YOUR_API_KEY"
Combined Filters curl -X GET "https://www.trysignalbase.com/api/v2/signals/investors?type=vc&countries=US,GB&ticket_size_min=500000&sort_by=ticket_size_max&sort_order=desc&limit=50" \ -H "Authorization: Bearer YOUR_API_KEY"
