Here’s a practical, current list of leading HGV / haulage insurance brokers in the UK for 2025 (status: as of September 4, 2025). These are chosen for market scale, specialist haulage teams or clear HGV product pages and industry recognition — use it as a starting point when getting quotes.

1. Howden — large UK broker with dedicated truck & haulage teams; handles single vehicles up to large fleets. (howdeninsurance.co.uk)
2. Arthur J. Gallagher (Gallagher) — global broker with a specialist haulage & logistics practice and in‑house claims/fleet services. (ajg.com)
3. Marsh Commercial (Marsh) — major commercial broker arranging fleet and specialist HGV programmes. (marshcommercial.co.uk)
4. PIB Insurance Brokers — UK specialist broker with a dedicated haulage & logistics offering and long experience in the sector. (pib-insurance.com)
5. Towergate / Ardonagh group — large UK broker group with transport/vehicle specialisms and scheme access for hauliers. (insurancebusinessmag.com, towergateinsurance.co.uk)
6. A-Plan / Plan Insurance — well‑known UK motor/commercial broker network offering haulage/HGV policies and local account management. (insurancebusinessmag.com, planinsurance.co.uk)
7. Adrian Flux — large specialist motor broker that also offers tailored HGV/truck insurance for owner‑drivers and fleets. (adrianflux.co.uk, insurancebusinessmag.com)
8. Isis Insurance (specialist HGV/truck brokers) — HGV/truck specialist broker offering tailored haulage cover. (isisinsurance.co.uk)
9. Atticus / Impact (specialist regional haulage brokers) — brokers with focused HGV/haulage teams for owner‑operators and SMEs. (atticusinsurance.co.uk, impactinsurance.co.uk)
10. One Broker / other specialist haulage brokers (e.g., JPM, Plan, local specialists) — independent specialists that focus on hauliers, mixed fleets and goods‑in‑transit solutions. (onebroker.co.uk, jpmbrokingservices.co.uk)

Notes:

• “Top” here is not a single objective ranking (there’s no single public league table for HGV brokers); these names are commonly recommended because they combine scale, specialist HGV teams, scheme access or clear haulage product pages. Sources above are the brokers’ own pages and industry listings (links in the citations).
• For best pricing and cover, request quotes from several of the brokers above — cover terms (goods in transit, first‑carrier liability, driver limits, EU cover, hazardous goods) and claims service matter as much as premium.

If you’d like, I can: (a) compare key differences in cover each broker highlights, or (b) produce contact/branch details for any 3 brokers from the list.