Grant Thornton and RSM UK are both UK Tier-2 firms with transaction services teams. Neither publishes fees, so the comparison comes down to the team and quote each puts in front of you.
The honest take
Ask each firm for the named partner and manager, three comparable deals in your target's sector, and a quote broken down by hours and grade for the same scope. Those three answers separate two Tier-2 firms far more reliably than the brand does.
Side by side
Grant Thornton UK
Tier-2
UK Tier-2 firm whose transaction advisory services team carries out buy-side and sell-side financial and tax due diligence for private equity and corporate clients.
Sectors: Technology, Financial services, Consumer, Healthcare
Pricing: Quote-only. The firm publishes service descriptions, not fees or rate cards.
Adviser profile ->RSM UK
Tier-2
UK Tier-2 firm whose deal services team covers financial due diligence alongside IT, regulatory, ESG and HR due diligence.
Sectors: Consumer, Industrials, Technology, Professional services
Pricing: Quote-only. No published rate card; fees are set in the engagement letter.
Adviser profile ->This page is anchored to UK primary legislation and named regulator guidance only. Not legal advice. Confirm position with your appointed adviser before signing.