BDO has announced plans to deploy Fieldguide, an agentic AI platform for audit and advisory, across the consulting, risk and outsourcing divisions of its combined UK and Ireland business, a move that matters broadly because it embeds AI into the planning and routine execution of client work at a firm of 8,500 people, and matters specifically to accountancy professionals because it shows engagement teams being rebuilt around AI agents that take on administrative and labour-intensive tasks.

BDO LLP is the combined UK and Ireland arm of the BDO International network, formed on 4 July 2026 through the merger of BDO UK and BDO Ireland, with about 8,500 staff, 500 partners, 19 offices and revenue of nearly 1.26 billion euros.

Fieldguide is a San Francisco-based AI platform for audit and advisory firms, founded in 2020 by former EY professional Jin Chang, whose Field Agents execute planning, testing and review work.

Leigh Treacy, executive board member and head of the UK&I consulting, risk and outsourcing practice at BDO, said the adoption builds on existing AI investment and aims to improve quality, consistency and professional capacity through human-centric AI. Clients will also be able to work with project teams through the platform, with protected file sharing and clearer visibility of progress.

The rollout follows a wider programme. BDO announced a global partnership with Fieldguide in March and has been rolling it out across member firms, starting with internal audit and third-party assurance, most recently in Australia.

The vendor has scale behind it. Fieldguide raised 75 million dollars (about 66 million euros) in a Series C led by Goldman Sachs Alternatives, and counts KPMG, BDO and Grant Thornton among the firms it works with.

Timing matters for Ireland. BDO plans to double its Irish workforce to more than 1,100 and raise its Irish partner count from 43 to 70 over five years, so technology that adds capacity without proportional headcount sits alongside an aggressive hiring plan.

For the sector, BDO’s decision to put agentic AI into live client engagements shows large mid-tier firms treating AI as core delivery infrastructure, not a pilot.

Source: International Accounting Bulletin / Consultancy.com.au / GlobeNewswire / RTE