These are the 15 Largest US Startup Funding Rounds of September 2017

15. Apttus $55,000,000
Round: Series E
Industry: CRM, Enterprise Software, Finance, SaaS
Location: San Mateo
Date of funding: 09-13
Investors in the round: Lead – PremjiInvest, K1 Investment Management, Salesforce Ventures, ICONIQ Capital