John Campbell LLP
- Messengers-at-Arms and Sheriff Officers for debt recovery, citation, diligence and investigation services throughout Scotland. Based in Hamilton.
- http://www.jcllp.co.uk

Charles Anderson
- Sheriff Officers in Glasgow. Company profile, payments, and contacts.
- http://www.canderson.co.uk/

A A Hutton
- Sheriff Officers in Dundee, Dunfermline, Forfar and Perth.
- http://www.aahutton.co.uk/

Society of Messengers-at-Arms and Sheriff Officers
- The Society of Messengers-at-Arms and Sheriff Officers, the Professional Association of Scottish Process Servers.
- http://www.ednet.co.uk/~smaso/

Alex M Adamson
- Sheriff Officers in Falkirk, Livingston, Stirling and Glenrothes.
- http://www.alex-adamson.demon.co.uk/

Institute of Professional Investigators
- Organisation representing investigators throughout the UK.
- http://www.ipi.org.uk/

Stirling Park
- Sheriff Officers in Glasgow, Kilmarnock, Ayr, Dumfries and Stranraer.
- http://www.stirlingpark.co.uk/

George Walker & Co.
- Sheriff Officers in Glasgow, Paisley, Hamilton, East Kilbride, Kilmarnock, Dumbarton, Cumbernauld, Oban and Kirkcaldy.
- http://www.georgewalker.co.uk/