Ninety-six of America's 100 largest law firms ran Intapp software when it went public. Most people had never heard of it. Intapp sold to professionals who bill by the hour: lawyers, accountants, consultants, and dealmakers. Its tools checked conflicts of interest, tracked time, and kept client data in one place. By 2021, those firms were moving to the cloud, and Intapp had more than 1,600 clients in over 40 countries.

Built for Law Firms First

Intapp was founded in 2000 as Integration Appliance. Its first job was to connect and manage the data that law firms kept in many separate systems. Thad Jampol co-founded the company and later ran its products. The bet was that professional firms had needs too specific for general business software. Intapp grew into accounting and consulting. In 2018 it bought DealCloud, which brought in private equity and investment banking clients.

A Steady Climb

Intapp priced at $26 a share on June 29, 2021, and began trading on the Nasdaq the next day under the ticker INTA. The stock rose about 8 percent on its first day. Great Hill Partners and Temasek, existing investors, had offered to buy up to $60 million of the shares. Intapp kept selling to law, accounting, and private capital firms. In July 2026 it signed a new $150 million credit line. It is still public on the Nasdaq and based in Palo Alto.

Cover: Main Staircase of the Palace of Justice, Honoré-Victorin Daumier. Art Institute of Chicago, public domain. Chosen for the steps of a palace of justice (law firms).