Procurify - Reinvent the way organizations spend to make the purchasing process more accessible, manageable and convenient.

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.

Coupa - Coupa is a cloud-based suite of financial applications providing spend management solutions to companies.

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

Ariba - Ariba is a software and information technology services platform providing companies with collaborative business commerce solutions.

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