Recruitment Agency

International Service Group

Pan-European personnel services group covering recruitment, executive search, training and interim management

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TrustList summary

International Service Group, or ISG, is a European personnel services company. It says it has grown over more than twenty years into a group with around 800 staff in over 60 offices, spread across 35 countries.

Its consultants specialise by sector, which lets the group cover a wide range of industries.

What International Service Group offers

Personnel consulting: recruitment and staffing support for employers.
Executive search: finding senior managers.
Training and development: programmes to build staff skills.
Interim management: temporary managers for short-term needs.
Media House: a division for media and communications work.

Who it works with

Employers and candidates across many industries, supported internationally through its network of offices.

Key facts

Team: about 800 staff
Offices: over 60, in 35 countries
Experience: more than twenty years
Divisions: five

Summary written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

International Service Group is ranked on 7 TrustList rankings: #2 on 1, #3 on 1, #4 on 2, #5 on 2 and #12 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. International Service Group has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Recruitment agency · 7 rankings

#2of 32
Public sector recruitment
It is one of 3 here listing interim management and one of 4 here listing construction and property recruitment.
Of the 32 here, 19 also cover permanent recruitment and 18 also cover temporary staffing; 2 also work in Phoenix and 2 also work in Leeds.
Behind Catch 22, ahead of Blue Arrow.
#3of 151
Finance recruitment
It is one of 6 here listing public sector recruitment and one of 11 here listing healthcare recruitment.
Of the top 57 here, 24 also cover executive search and 18 also cover IT and tech recruitment; 4 also work in London and 4 also work in Dallas.
Behind FirstPro, Inc, ahead of HOBAN.
#4of 159
Healthcare recruitment
It is one of 5 here listing IT and tech recruitment and one of 9 here listing executive search.
Of the top 51 here, 12 also cover finance and accounting recruitment and 10 also cover office and admin recruitment; 4 also work in California and 2 also work in New York.
Behind Kawader For Recruitment, ahead of Acloche Staffing.
#4of 50
Interim management
It is one of 10 here listing finance and accounting recruitment.
Its profile: “- Interim management: temporary managers for short-term needs.”
Of the 50 here, 15 also cover contract recruitment; 2 also work in Houston.
Behind Ethos BeathChapman, ahead of Career Moves Group.
#5of 164
It recruitment
It is the only one of the top 50 here listing interim management and one of 3 here listing construction and property recruitment.
Of the top 50 here, 12 also cover engineering recruitment; 3 also work in Philadelphia and 2 also work in United States.
Behind FirstPro, Inc, ahead of Acloche Staffing.
#5of 68
Construction recruitment
It is one of 3 here listing interim management and public sector recruitment.
Of the top 51 here, 11 also cover manufacturing recruitment; 5 also work in Manchester and 4 also work in York.
Behind Fawkes & Reece, ahead of HOBAN.
#12of 479
Executive search
It is one of 5 here listing construction and property recruitment and interim management.
Its profile: “- Executive search: finding senior managers.”
Of the top 83 here, 3 also work in New York City and 3 also work in Austin.
Behind Ethos BeathChapman, ahead of Darrell Walker Workforce.