All-in-one talent management. Rooted in science, backed by AI.

Built on 70+ years of psychometric research and advanced AI, Assessio helps HR teams make faster, fairer, and more confident people decisions across the entire employee lifecycle. 

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Connected insights across the entire employee lifecycle

Trade fragmented tools and disconnected data for one simple view of each individual's capabilities and potential. From pre-hire psychometric testing and performance to employee development and compensation, Assessio helps you make confident, connected decisions.

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Predictive Hiring

Predictive Hiring

Assess candidates with validated science-based behavioral, personality, and aptitude tests, so you can hire the right person, the first time. Save time with bias-free AI that helps draft, predict and guide your people decisions. 

Assessio Predictive Hiring candidate card showing a match score of 89, strong match
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Performance

Data-driven employee performance management insights that help leaders have better conversations, set meaningful goals, and identify who is ready for more.

Assessio People Review actions list with task statuses and 75% completed
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Development

Personalised development plans grounded in psychometric data, to make sure every person fulfils their potential, and your organisation builds capability over time.

Assessio development dashboard with training sessions, learning hours and employees trained
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Engagement

Real-time engagement signals that show you where motivation is slipping, so you can act before it affects performance or retention.

Assessio satisfaction survey dashboard showing an 85% score from 620 participants
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Compensation

Transparent, data-backed compensation decisions that align pay with performance, reduce bias, and help you retain the people who matter most.

Assessio Salary Review dashboard with pay increases by group and employee statuses
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AI

Optional AI capabilities draft, predict, and guide, helping managers and HR teams make better decisions faster, without replacing human judgement.

Sio Copilot chat with suggested questions about a candidate's strengths
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How it works

Hire
Measure
Develop
Retain

Why choose Assessio?

Reduce costly mis-hires

Decrease employee turnover by up to 29%

Use advanced predictive hiring analytics to pinpoint who’s the best fit, saving money and avoiding disruptions.


Build talent that stays

Increase retention rates by up to 50%

Invest in your people with talent mapping and development plans that keep them engaged, motivated and growing.


Services to support you

Assessio's tools are even more valuable with the right expertise behind them. Our Services team can help you get the most from every assessment and talent decision.

Find the right fit, faster

Cut recruitment time by up to 89%

Prioritise the candidates who truly fit the role, freeing up your team to focus on strategy and growth.


Get compensation right

Pay fairly without overspending

Make market-informed salary and benefits decisions that control costs, support EU Pay Transparency compliance and improve retention.

AI CAPABILITIES

Compliant HR AI features to support workflows across the talent journey

Assessio's AI works in four ways — it chats, drafts, predicts, and guides — and it's built in at every stage of the employee lifecycle.

Our integrated AI features help you work faster and make better bias-free decisions without replacing human judgement. It can draft reviews and summaries, flag risks like burnout or attrition before they become problems, and build skills plans in one click. And you can of course opt in or out of all the AI features, so you can build the workflow that works best for you and your team.

Built on validated psychometric data, our AI features are fully certified and compliant (ISO 42001 & 27001, EU AI Act compliant) — no black-box guesswork, just actionable insights you can trust.

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Customer stories

Trusted by global enterprises across industries

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JCDecaux transformed its annual performance review from a low-completion process into a structured, embedded cycle, then connected it to engagement measurement, talent reviews, succession planning, and compensation reviews. 

92%

performance review completion, latest cycle

3,300

employees covered in France

"Today, these reviews spark reflection and meaningful dialogue that go far beyond operational performance and help guide employees in their growth and development journey." 
Victoire Pellegrin, Talent Development Director, France & International HR Projects, JCDecaux
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KLM, one of the Netherlands largest employers, uses assessment science across the talent lifecycle. A data-driven online process selects management trainees with a candidate experience rated 8 out of 10, while a career-orientation platform gives all 10,000 cabin crew the tools to take ownership of their development.

8/10

candidate experience, rated even by candidates who were not hired

10,000

cabin crew given career-development tools

1,000+

active users within weeks of launch

"It encourages our people to reflect, to broaden and deepen their skills, and to take ownership of their own careers."
Marion Leguijt, Vice President Cabin Crew Management, KLM
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Audika, France's leading hearing-care brand, moved review management out of scattered regional spreadsheets into a single framework, running structured reviews at every stage of the employee journey, to give managers real tools to drive performance and strengthen retention in a competitive sector.

Growth

annual development reviews and objective-setting

Careers

statutory professional interviews and six-year career reviews

Retention

a company-wide sentiment barometer feeds targeted action plans

"Reviews are increasingly seen as genuine managerial tools, with real added value for our employee development and engagement strategy."
Barbara Klein, Training & Career Development Officer, Audika
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Randstad redesigned its management trainee selection to be fairer and more objective. CVs were removed from the early process to reduce bias, and every candidate is now assessed with a game-based method grounded in neuropsychology, keeping the process human while making sure only the most talented candidates progress.

Fairer

CVs removed from consideration so background doesn't gate access

Objective

a game-based assessment scientifically measuring over 30 traits

Human

a video-led, hands-on candidate experience

"By bringing in new technology, we've made our selection process even more personal."
Isabelle Rijsterborgh, Campus Recruiter, Randstad Groep Nederland
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EIT InnoEnergy, a fast-scaling green-energy organisation, uses science-based assessments across the full employee lifecycle, from selection and onboarding through to development and performance, to ensure it hires people who fit its culture and gives every employee a clear, self-aware starting point for growth.

Hire

personality and aptitude assessment at final-stage selection

Develop

self-awareness and personality insights feed individual development plans

Retain

culture-fit hiring and structured onboarding built to keep people performing

“The most important result our assessments have yielded is that we bring in people who fit our corporate culture and who can help our organisation grow."
Marco Verburgh, Talent Acquisition & Development Manager, EIT InnoEnergy

Use cases

Smarter people decisions at every stage

Assessio’s science-backed assessment capabilities help HR teams hire stronger, measure accurately, develop faster, and retain longer. 

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  • Hire

    Validated psychometric tests and AI-powered candidate screening, so every hiring decision is fair, fast, and explainable. 

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  • Measure

    Understand people’s talents through skill assessment and performance data, and learn what can be done to help them improve.

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  • Develop

    Science-backed tools to measure performance, grow your people, and close the skill gaps that are holding your organisation back. 

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  • Retain

    Real-time engagement and compensation insights that help you act before your best people start looking elsewhere. 

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"They are true professionals: psychologists who know, from their field, what you can achieve when you build on people's talents."

Natasja Freijer

Head of Talent Acquisition, Schiphol Group

"In recruitment, we work hard to let people be themselves. Together, we brought KLM's personal approach into the selection process."

Beeke Ebbinge

Recruiter Young Potentials, KLM

"It gives a pulse on how each leader is perceived by their team and points to the specific actions to work on, and our employees value being able to give both a rating and written feedback."

Anna Mindelöf

CHRO, Fenix Outdoor Group

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"We've worked successfully together for many years, from choosing trainees for international programmes, right up to evaluations for our high-potential employees. We especially value the test quality, the customisation, and the in-depth consultancy."

Rainer Sedlmayr

Corporate HR, Leadership Development & Potential Assessment, BASF

"Assessio is our dedicated provider for web-based assessments, and we'd recommend them to any airline or customer-service organisation."

Jürgen Wiedmann

Product Manager Recruitment, Deutsche Lufthansa

Security and compliance without compromise

Rigorous compliance, transparent AI, and certified security, so every talent decision you make is one you can stand behind.

Security & Compliance badges

ISO and CSA certified

Assessio is certified to the highest industry standards, giving your organisation the confidence that every tool, process, and data point is handled with rigour. 

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GDPR compliant

Full compliance with European data protection law, so every assessment and insight you gather meets the standards your candidates and employees expect.

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AI Act compliant

Our AI is explainable, auditable, and built on validated science, designed to meet the requirements of the EU AI Act and the expectations of the people it affects. 

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People data you can trust

See why thousands of organisations around the world use Assessio to unlock their full potential.

Explore our resource library

From psychometric testing to practitioner experiences, find everything you need to make better talent decisions.

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Articles

Practical thinking on hiring, development, and talent strategy from Assessio's psychometrics and HR experts

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Webinars & events

Regular online sessions covering the topics shaping modern HR, with leading industry figures and live Q&As.

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Reports

Data-driven research on the trends defining talent management, drawn from thousands of assessments across Europe.

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Frequently asked questions about Assessio 

Browse our FAQs to find out more.

What is Assessio?

Assessio is a science-backed talent management platform that helps HR teams hire, develop, and retain the right people. Built on over 70 years of validated psychometric research and powered by AI, the Assessio Talent Suite covers the full employee lifecycle — from psychometric testing and candidate screening in talent acquisition, through performance management and employee development, to engagement and compensation insights that improve retention.

What's the difference between Assessio Talent Suite and Assessio Bloom?

Assessio Talent Suite is our core talent management platform, covering the full employee lifecycle — hiring, performance, development, engagement, and compensation — in one connected system. Assessio Bloom is a highly configurable assessment platform focused on predictive hiring and talent development, built for organisations that need to tailor branding, workflows, and integrations to their own business.

Is Assessio an assessment platform or talent management software?

Assessio is both. It's an assessment platform built on validated psychometric testing, and talent management software that covers the full employee lifecycle — from hiring and development through to retention.

How does Assessio help with hiring and candidate screening?

Assessio combines validated personality, logic, and aptitude tests with AI-powered candidate screening and role benchmarking, so you can predict how someone will perform before day one. Because every assessment is grounded in validated science, hiring decisions are fair, bias-free, and defensible — helping you reduce mis-hires, increase diversity, and speed up your recruitment process.

What makes Assessio's psychometric assessment tools reliable?

Our assessments are built on more than 70 years of validated psychometric research — the most reliable foundation for understanding behaviour at work. Each test is scientifically validated and in 2025 , over 1.6 million tests were completed on Assessio’s assessment platform by organisations across Europe.

How does Assessio use AI — and can I trust it?

Assessio's optional AI capabilities draft, predict, and guide, helping HR teams and managers make better decisions and save time without replacing human judgement. Our AI is explainable, auditable, and built on validated science, designed to meet the requirements of the EU AI Act. It's embedded throughout Assessio Talent Suite and Assessio Bloom, there to help if and when you need it — you stay in control of every talent decision. 

Is Assessio GDPR compliant and secure?

Yes. Assessio is fully compliant with European data protection law (GDPR) and certified to the highest industry security standards. Every assessment, insight, and data point is handled with rigour, so your candidates' and employees' data is protected — and every talent decision you make is one you can stand behind. 

How do I get started with Assessio?

The quickest way is to book a demo. Our team will walk you through our talent management software options and show how they fit your organisation's hiring, development, and retention goals. You can also explore our separate products, or browse our resources for research and customer stories from HR teams across Europe.