DocuSign, valued at $3bn as of its last funding round, has confidentially filed for an initial public offering that would offer exits to more than a dozen corporate investors.

DocuSign, a US-based online signature technology provider backed by more than a dozen corporates, has confidentially filed for an initial public offering and plans to float within six months, TechCrunch reported today.

Founded in 2003, DocuSign has developed cloud-based technology enabling users to electronically and securely sign contracts and documents. The software can be integrated with other enterprise platforms to automate and streamline processes such as payment and provisioning requests.

DocuSign claims to have more than 300,000 paying clients and more than…