Checked by CompareHQ on 9 October 2026. We reviewed Thomas International's own website, and the services, facts and accreditations on this profile reflect what it says. Work at Thomas International? Claim this profile to keep it up to date yourself.
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Thomas International
Thomas International is a psychometric assessment publisher based in Marlow, Buckinghamshire, founded in 1981.
Its assessments cover behaviour (the Thomas DISC assessment, also known as the Personal Profile Analysis or PPA), aptitude (the General Intelligence Assessment), personality (the High Potential Trait Indicator), emotional intelligence and 360-degree feedback. Organisations use them for recruitment, onboarding, development and team work. All are taken online. The behaviour and personality assessments take under 10 minutes and the aptitude test 30 to 40 minutes.
Pricing is per employee per month, with separate plans for managers and teams, HR professionals and accredited practitioners. It has offices in the UK, the Netherlands, France, Belgium, Australia and South Africa.
- Delivery format
- Online
- Client type
- B2B
- Sector specialisms
- IT and software, financial services, manufacturing and construction, public sector, energy and utilities, recruitment, professional services, healthcare
Clients include







Psychometrics & assessments
Price on request
1981
201-500 employees (LinkedIn)
Ratings last checked: 21 August 2026
Professional Coaching Credentials
None listed for this provider yet.
Training & Accreditations Offered
Frequently asked questions
Are Thomas assessments independently reviewed?
The British Psychological Society (BPS) has published test reviews of four: the Personal Profile Analysis (2022), the General Intelligence Assessment (2002), the Trait Emotional Intelligence Questionnaire (2013) and the High Potential Trait Indicator (2023). We found no BPS review of its shorter emotional intelligence assessment or its 360-degree feedback tool.
Which ISO standards does Thomas International hold?
ISO 27001:2022 for information security and ISO 9001:2015 for quality management, both held by Thomas International UK Limited and valid until January 2029.
How is Thomas International priced?
Per employee per month. Prices are not published. There is a minimum spend for organisations with fewer than 100 employees, tailored pricing above 1,500 employees, and the Expert plan for accredited practitioners is priced on application.
How long do the assessments take?
Behaviour under 8 minutes, personality under 10 minutes, the short emotional intelligence assessment about 10 minutes, the Trait Emotional Intelligence Questionnaire 20 to 30 minutes, and aptitude 30 to 40 minutes. 360-degree feedback takes about 15 minutes for each person giving feedback.
How many organisations use Thomas International?
Thomas states that its assessments are used by more than 10,000 organisations. Organisations shown on its website include Smurfit Kappa, Veolia, Carlsberg, Specsavers, Siemens, Porsche, Red Bull and BP.
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