Datacircle: free 10M+ US B2B leads dataset and a B2B data API with no markup

# Datacircle > Datacircle is a B2B data API with no markup: one API key and one balance for B2B data providers (Up2Data and HarvestAPI), each call at the provider's own price. LinkedIn profiles cost $1.25 per 1,000 found through Up2Data (a profile not found is free) and $3.70 per 1,000 through HarvestAPI. Every workspace gets a $5 credit at signup. Datacircle also gives away a 10M+ US B2B leads dataset, free, in one file. The data is shared: every LinkedIn profile anyone fetches through Up2Data goes into a co-op file, new every day, unlocked once a workspace has added $50 in funds or 3 people it invited sign up. ## Pages - [Home](https://datacircle.dev/): the free 10M+ US B2B leads dataset and the B2B data API - [Free US B2B leads dataset](https://datacircle.dev/free-us-b2b-leads-dataset): 9.5M people and 1.75M companies, every column and fill rate, free - [Free list of US companies](https://datacircle.dev/free-us-companies-list): 1.75M companies of 11 to 500 employees, free; the 6.7M of the 50M+ dataset counted by state, industry and size - [US construction companies](https://datacircle.dev/free-us-companies-list/construction): 270,515, by state and size, 20 picked at random - [US real estate companies](https://datacircle.dev/free-us-companies-list/real-estate): 192,553, by state and size, 20 picked at random - [US medical practices](https://datacircle.dev/free-us-companies-list/medical-practices): 187,218, by state and size, 20 picked at random - [US business consulting companies](https://datacircle.dev/free-us-companies-list/business-consulting-and-services): 187,146, by state and size, 20 picked at random - [US hospitals and health care companies](https://datacircle.dev/free-us-companies-list/hospitals-and-health-care): 170,955, by state and size, 20 picked at random - [US IT services and consulting companies](https://datacircle.dev/free-us-companies-list/it-services-and-it-consulting): 167,778, by state and size, 20 picked at random - [US advertising compan