People search for all three, and the words get used interchangeably — but they are not quite the same thing.
Pension adviser (or advisor — both spellings are common in the UK) is someone authorised by the Financial Conduct Authority to give you a personal recommendation about your pension. That authorisation is what matters: it brings regulatory protection, access to the Financial Ombudsman Service and, in most cases, FSCS cover.
Pension broker is an informal term. Some people use it to mean an adviser; others mean an introducer who simply puts you in touch with one. There is no regulated status called “pension broker”, so the word alone tells you nothing about whether the person can legally advise you.
To be clear about what we are: My Pension Advisor is an introducer, not an advice firm. We connect you with FCA-authorised advisers and we do not give advice ourselves. The advice comes from a regulated firm, and you can check any firm on the Financial Services Register before you speak to them.
If you are searching for a pension broker because you want someone to compare your options and recommend a course of action, what you actually need is a regulated adviser — and that is what we will match you with, free of charge.