IRBA-registered audit firm

From independent practice to AI-native firm.

Roots, staying power and the courage to change: how an independent practice became an AI-native audit and advisory firm.

Timeline

  1. 1995Ian Pierce leaves a Big Four partner track to build an independent practice
  2. 2016Rebranded as RAiN Chartered Accountants
  3. 2021Vision to become a top-10 audit firm
  4. 2022Entry into technology
  5. 2025Acquisition of an IT engineering business with 25+ years' experience confirm: public naming
  6. TodayAI-native assurance platform developed by PEAQ, RAiN's technology division; Monsoon platform certified to ISO 27001:2022 and ISO 42001 (held by PEAQ; certified by AENOR, 2026)

Timeline wording requires approval; photo per milestone (source: to supply)

Business Reimagined

Start with a 30-minute conversation.

Tell us what keeps you up at night. We will show you what complete evidence could change in your business.

Explore MonsoonContact us