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Institute of Interim Management

Accelerating Interim Success

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Leading interim service providers

These are the IIM’s “Leading Interim Service Providers” listed in four tiers from Platinum, through Gold, Silver and Bronze (16 Providers in each).

Based on over 40,000 individual votes, we offer this ranking as a credible list of excellence in interim service provision and commend it to professional interim managers and executives to use.

  • The provider title links and logo boxes go to the Providers’ websites.
  • Read the IIM’s: Interim Management Survey 2021
  • Read more about how the survey is conducted.
Platinum 1-16
Gold 17-32
Silver 33-48
Bronze 49-64
Consultants
Guide

Interim Service Provider details do change. If you see an inaccuracy or description that requires an update, please tell us.

17. FRP Transition – (Previously: 16/19/32/37)
Interims experienced in working in the private sector in growing, stressed and distressed businesses.

18. Greenwell Gleeson – (Previously: 15/22/16/21)
Birmingham based accountancy & finance recruitment firm.

19. La Fosse Associates – (20/21/20/22)
Specialists in IT Recruitment at all levels and in all sectors.

20. Savannah– (Previously: 22/13/12/14)
Functions: All, Finance, IT, HR & Prog./Project Mgt; Industries: All, Financial Services, TMT, Transport/Travel, Service Industry; London, UK, Europe, Germany, France, Italy & Nordics.

21. Gatenby Sanderson – (Previously: 27/25/24/7)
Senior interims in Health, Government, Voluntary, Education & Housing. Leeds, London, Birmingham.

22. Hunter – (Previously: 12/10/8/16)
NHS, Healthcare sector and Life Sciences.

23. Stanton House – (Previously 24/20/23/18)
Core disciplines in Finance, Change Management and Consulting.

24. Investigo Executive – (Previously: 25/23/22/23)

Senior interims into Finance, Business Change and Transformation, Procurement, Real Estate, Facilities and Workplace and Technology.

25. Matrix Interim – (Previously: 21/26/21/20)
All sectors. Based in London with an international remit.

26. BIE – (Previously 23/11/13/10)
Senior level Interim Managers. Nationwide & International.

27. Allen Lane – (Previously: 26/24/14/13)
Banking, Finance, Not-For-Profit, Public Sector.

28. Macallam Interim – (Previously: 32/48/57/44)

Manufacturing, FM and Support Services, Professional Services, Industrial, Financial Services, Energy, Retail, Public Sector, Power and Utilities and Private Equity.

29. Green Park –  (Previously: 29/14/9/11)
Financial Services, Retail, Commerce, Industry, TMT, Health, Life Sciences, Energy/Utilities, Transport, Central & Local Govt. General Mgt, HR, Project Mgt, Finance, IT, Procurement

30. Drax – (Previously: 48/64-new entry)
Multiple functions supporting Private Equity.

31. Morgan Law – (Previously: 36/27/29/33)
Public Sector. Nationwide.

32. Veredus – (Previously: 42/28/25/9)
Generalist senior roles in Public and Not for Profit sectors. Commercial specialist focus on: TMT, Transport, Life Sciences/Pharmaceuticals, Infrastructure, Manufacturing and Energy.

Platinum 1-16
Gold 17-32
Silver 33-48
Bronze 49-64
Consultants
Guide

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