Criteria for inclusion.
The Practice Insider 500 is criteria-gated, not pay-to-play. These are the criteria in full, and how every entry is verified. Firms are featured, never scored — inclusion is the status, and no firm is compared to another.
Independent UK practice
An independent UK accounting or advisory practice — not a network subsidiary, a franchise operation, or a vendor's services arm.
Three years trading
A minimum of three years in practice, confirmed against the Companies House record.
Qualified professionals
At least one qualified professional in the firm, checked against the relevant professional body's records.
Verified in conversation
Every entry is confirmed through a direct conversation with Practice Insider. No profile is compiled from public data alone.
Cross-checked records
Details are cross-checked against Companies House and professional body records before anything is published.
Nomination or invitation
Entry is by nomination or editorial invitation, judged against these criteria. There is no fee and no way to buy inclusion.
Capped at 500
The register holds 500 practices and no more. When it is full, a new entry requires an existing one to leave.
How verification works.
Every practice on the register has been spoken to directly. The conversation establishes who runs the firm, how it operates, and whether the criteria are genuinely met — then the record is cross-checked against Companies House and the relevant professional body before anything is written.
Profiles are written by Practice Insider and approved by the firm before they go live. Nothing is published without the subject's sign-off. Revenue and contact details are collected for verification only and are never published.
The register carries no rankings, no scores, and no league table. Tools are scored on this site; people are featured. No firm is compared to, ranked against, or scored relative to another — being on the register is the whole of the signal.
Practice Insider is operated by Mehmood Rajoka, who also operates Bryxo. Bryxo is excluded from all comparative reviews and rankings. Practice Insider takes no vendor sponsorship for editorial coverage.
Nominate a practice.
If you know a firm that belongs on this register, tell us who they are and why. Nominations are read personally and judged against the criteria above.
Nominate a practice →Apply to be featured.
If your own practice meets the criteria, write to us with the firm's name, your role, and a few lines on how you run it. We review every application individually and reply to each one.
Apply to be featured →