Intapp Billstream offers a modern, cloud-based automated proforma invoice solution designed to help professional services firms integrate, automate, and accelerate prebill processes. As part of a legal billing automation solution, Intapp Billstream intelligently addresses gaps in firms’ existing billing software and processes, solving billing challenges across the engagement lifecycle to ensure clients receive the bills they expect. 

Intapp, founded in 2000 and based in Palo Alto, CA, is a well-known provider of cloud-based software solutions for professional and financial services firms. They are publicly listed (NASDAQ:INTA). They acquired BillStream in 2022.