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Arbiter HR vs Peninsula

Peninsula is a large HR, employment law and health and safety outsourcer. Arbiter HR is one independent HR consultant for care providers and small employers. They are different things, and the right one depends on what you need.

Facts checked on 29 October 2026 from the pages linked below. Prices and terms change; check them before you decide. This page is written by Arbiter HR, so read the other side too.

Arbiter HRPeninsula
What you getOne named HR consultant (Polly Duncan) who runs your investigations, hearings and grievances, online or in person in South WalesA 24/7 advice line, documents, software and health and safety support from a large team (Peninsula says it helps "tens of thousands" of UK businesses)
Prices on the websiteYes. Monthly plans £170 to £1,200; one-off work quoted by email within 12 hoursNo. Peninsula's pricing page shows "Loading Your Tailored Pricing" and gives no figures. Peninsula's own fees guide gives an example of £157 a month for 10 staff
ContractOne-off work: none. Monthly plans: 3 months minimum, then 6-month rolling, 1 month's noticeNot stated on Peninsula's pricing page. Multi-year terms are widely reported in public reviews and forums; check the contract before signing
Who does the workThe same person every timeAdvisers on the phone line; an on-site consultant is a separate service
Health and safetyNot offeredIncluded in Peninsula's packages
Tribunal insuranceNot offered. We help you follow the Acas Code so claims are less likelyLegal protection products are offered (terms apply)
Sector focusHealth and social care (CIW and CQC) and small employersAll sectors
Best forEmployers who want one person to run a case properly, at a known priceEmployers who want a 24/7 line, H&S cover and software in one monthly package

When Peninsula may suit you better

  • You want someone to answer the phone at 3am.
  • You need health and safety as well as HR.
  • You want tribunal insurance bundled in.
  • You have hundreds of staff across many sites.

When Arbiter HR may suit you better

  • You have a live case now and want it run by one experienced person, not a call centre.
  • You want the price before you commit, with no long contract.
  • You run a care service and need someone who knows CIW, CQC and safeguarding.
  • You want to pay per piece of work, not every month.

Questions

Is Arbiter HR a Peninsula alternative?

For investigations, hearings, grievances and ongoing HR advice, yes. For health and safety and 24/7 phone cover, no: Arbiter HR does not offer those.

How much does Peninsula cost?

Peninsula does not publish prices on its pricing page. Its own fees guide gives an example of £157 a month for a business with 10 staff. Get a written quote and read the contract term before signing.

How much does Arbiter HR cost?

Monthly HR plans are £170 (2 hours), £400 (5 hours), £750 (10 hours) and £1,200 (15 hours) a month. One-off investigations and hearings are quoted as one fixed price by email within 12 hours of receiving your case details.

Can I use both?

Yes. Some employers keep a Peninsula contract for H&S and the phone line and bring in Arbiter HR when a case needs an independent investigator or hearing chair.

Next step

Get a fixed-price quote by email

Send the details of what you need and we email a fixed price within 12 hours. No contract, no renewal, no call unless you want one.

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