# RPC (Reynolds Porter Chamberlain LLP) - **Type:** Advisory firm - **Website:** https://www.rpclegal.com/ - **Assessed by:** The Assurance Desk (Add-Venture Advisory Ltd) A London law firm, regulated by the Solicitors Regulation Authority, whose Data & Cyber team advises on data protection, regulatory investigations, cyber incidents and, it says, AI governance. ## RPC scores Scored 1 to 5 on six criteria. There is no overall score. ### Help when things go wrong: 3/5 Chambers UK 2026 ranks the data protection department Band 5; named partner Richard Breavington's stated expertise covers data breach response, regulatory investigations and cyber incident matters, per Chambers and RPC-linked profile pages. ### Qualifications of the people who do the work: 3/5 Legal 500 UK 2026 ranks RPC Tier 2, and Chambers UK 2026 ranks it Band 5, for data protection, privacy and cybersecurity, recognised but not top-tier in either guide. ### What it publishes about fees: 2/5 No published fee ranges, hourly rates or fee model found for data-protection or AI-governance advisory work specifically; RPC's SRA-mandated pricing transparency statement appears to cover employment tribunal services only. ### Knowledge of your sector: 4/5 Dedicated Data & Cyber practice with named joint heads Jon Bartley and Richard Breavington, each individually ranked in Chambers and/or Legal 500 for this exact specialism. ### Independence from what it sells: 4/5 RPC is a traditional SRA-regulated law firm billing for legal advice; no evidence found that it sells or bundles its own compliance software to clients. ### Who carries the risk if the advice is wrong: 4/5 SRA-regulated recognised body (SRA number 440566) since 1 November 2011, meaning mandatory professional indemnity insurance rules and Legal Ombudsman recourse apply to client work. ## Sources for RPC Every line carries the page it was read on and the date it was checked. - Reynolds Porter Chamberlain LLP is registered at Companies House with company number OC317402, incorporated 24 January 2006, status Active, as a Limited Liability Partnership, registered office Tower Bridge House, St Katharine's Way, London, E1W 1AA. - Source: https://find-and-update.company-information.service.gov.uk/company/OC317402 - Checked: 2026-09-19 - Reynolds Porter Chamberlain LLP is authorised and regulated by the Solicitors Regulation Authority as a recognised body, SRA number 440566, authorised since 1 November 2011 for all legal services including reserved legal activities, head office Tower Bridge House, London E1W 1AA. - Source: https://www.sra.org.uk/consumers/register/organisation/?sraNumber=440566 - Checked: 2026-09-19 - Legal 500 UK 2026 ranks RPC's Data protection, privacy and cybersecurity practice in London as Tier 2, describing the team as having 'an excellent and well-deserved reputation' in the data protection market. - Source: https://www.legal500.com/rankings/ranking/c-london/risk-advisory/data-protection-privacy-and-cybersecurity/2817-rpc - Checked: 2026-09-19 - Chambers UK 2026 ranks RPC's Data Protection & Information Law department Band 5 UK-wide, and individually ranks partner Jon Bartley Band 4, noting he chairs the City of London Law Society's Data Law Committee. - Source: https://chambers.com/department/rpc-data-protection-information-law-uk-1:2666:11805:1:341 - Checked: 2026-09-19 - Legal 500's lawyer profile for Jon Bartley lists him as a Partner at RPC, London, practising in Technology including data protection, cybersecurity, digital technology and e-commerce, with 20 years' experience as a commercial contracts lawyer. - Source: https://www.legal500.com/firms/2817-rpc/r-england/lawyers/2148878-jon-bartley - Checked: 2026-09-19 ## What this provider publishes Not published means we did not find it on the firm's own pages. - Price: Not published - Indemnity cover: Not published - Credentials: Published - Independent accreditation: Not published - Client results: Not published - How it uses AI: Not published ## Strengths - Dedicated Data & Cyber practice with three named joint heads (Jon Bartley, Richard Breavington, Rupert Cowper-Coles), not a generalist team covering the area incidentally. - Individually ranked practitioner: Jon Bartley holds Chambers Band 4 and chairs the City of London Law Society's Data Law Committee. - Ranked in both major UK legal directories for this specific practice area, Legal 500 Tier 2 and Chambers UK Band 5. - SRA-regulated recognised body (since 1 November 2011), which brings mandatory professional indemnity insurance and Legal Ombudsman client recourse that unregulated consultancies do not carry. - Long-established firm (SRA-authorised, Companies House-registered LLP since 2006) with multiple offices, reducing single-point-of-failure risk. ## Things to check Each one carries the factual basis it rests on. - Legal 500 UK 2026 ranks RPC's data protection, privacy and cybersecurity practice in London as Tier 2, not the top tier of that ranking. - Basis: Legal 500's own ranking page for this practice area and firm states the tier directly. - Chambers UK 2026 ranks RPC's Data Protection & Information Law department at Band 5 in its UK-wide table for that practice area. - Basis: Chambers UK's own department ranking page for RPC states Band 5 directly. - No public fee range or rate card specific to data-protection or AI-governance advisory work could be found on RPC's own website. - Basis: RPC's SRA-mandated pricing transparency statement, per search-indexed content, covers employment tribunal services, not this service line. ## Where this firm appears - [After a data breach: what UK law asks of you](https://theassurancedesk.com/best/post-breach) - [Does the EU AI Act apply to a UK firm?](https://theassurancedesk.com/best/eu-ai-act-exposed) - [After a cyber attack: what to report, and to whom](https://theassurancedesk.com/best/security-incident) - [Compare providers](https://theassurancedesk.com/compare) --- **Scope.** The Assurance Desk covers data protection, AI governance and cyber security in the United Kingdom and the United States. It scores providers in both: UK-facing firms, and firms based in the United States. Every provider scored so far was selected for data-protection, AI-governance or security-assurance work. Where a page describes law, it names the country that law applies in. **Who publishes this.** The Assurance Desk is published by Add-Venture Advisory Ltd, company number 11854524, registered in England and Wales. The same owner runs Avouch, a marketing agency that sells AI visibility services to firms of the kind this site covers. That is a conflict of interest, and it is disclosed here. **Corrections.** If you represent this firm and something here is wrong or out of date, email hello@theassurancedesk.com with the evidence.