Crunchbase - Crunchbase is a platform for discovering industry trends, investments, and news about companies around the world.

PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

CB Insights - CB Insights is a company database for the venture capital and corporate development community.

DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Tracxn - data on companies

PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request