Scientifically validated by DNV

Understand the people behind the roles.

The Jungian Type Index has been in professional use for over twenty years, brought right up to date with AI coaching, AI-written team reports, and a structured learning course.

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Validated by DNV

Independent assurance

Built on Jung's typology

Over a century of psychological research

Used in HR, leadership and coaching

Across real organisations every day

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Where the AI earns its place.

Five features that know your type, your team, and what you're working on.

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AI Personality Coach
A coach available throughout the course, with the context of your type and the lesson you're on. Asks questions instead of preaching.
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AI-Generated Team Reports
Team Compass and Team Insights, written for your specific group. Fourteen sections cover communication, conflict, change readiness, leadership, and the dynamics no one wants to bring up.
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AI Assistant
Ask anything about types, teams, or your own data. It searches the JTI knowledge base, can act on your behalf, and quotes its sources.
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AI-Coached Learning Course
Nine modules covering Jung's typology, the four dimensions, and how to spot type in real situations. Seven kinds of activity, with an AI guide whenever you get stuck.
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Live Workshops & Polling
Run live workshops with polling, slides, and visuals that update based on who is in the room.
Personal development

Become more of who you already are.

Type isn't a box you fit into. It's a description of preferences you already have, written down in a way you can work with.

Self-awareness, plainly described

Your preferences for taking in information and making decisions, in language you'd use yourself.

Your less-developed sides

The parts of you that are quieter than the rest, and how to bring them on as you need them.

A direction, not a label

Use your type as a starting point for the next decision or conversation. It's not a fixed verdict, and it can develop with you.

Team & leadership

Lead each person the way they want to be led.

JTI gives leaders, HR partners and coaches a shared vocabulary for how different people think, decide, and respond to pressure.

Compose better teams

See where your team has range, where it's narrow, and which conversations to start before tensions appear.

Speak to who is listening

Adapt your message to how each person prefers to take in information and make decisions.

Defuse conflict early

Most team conflict comes down to type difference, not personality. The reports name the patterns and what to do about them.

The four type dimensions

NT
INTJINTPENTJENTP
NF
INFJINFPENFJENFP
SJ
ISTJISFJESTJESFJ
SP
ISTPISFPESTPESFP
Why JTI

What makes JTI different

There is no shortage of type indicators. JTI is one of very few that has been independently validated and stays close to Jung's original work.

Validated by an independent body

DNV (Det Norske Veritas), a global independent assurance and certification body, validates JTI's psychometric properties.

Grounded in Jung's original typology

Built on Carl Jung's original typology, with the language modernised for today.

AI added on top of the science

The AI features extend what JTI does (coaching, reporting, searching) without changing the underlying psychometrics.

In use for over two decades

Used by HR teams, leadership programmes, and coaches across Europe for over twenty years.

In use today

Used by real organisations

500K+

Assessments completed

1000+

Organisations and consultancies

17

Languages supported

For 20 years I've used JTI in my career-change programmes, and over 11,000 people have found their right path. The most powerful moment is when someone realises they hadn't been failing because they weren't capable enough — but because the work didn't match their natural preferences.
VAL

Vigdis Anita Lamberg

Managing Director, Karriereakademiet

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Read about the DNV validation
OnlineJTI — Understand the people you work with, starting with yourself | JTI