About TDF

It's all about the people.

TDF is a perceptual-styles model. It helps people understand how we see the world differently, act differently, and work and live together more effectively.

A practical human framework

An amazing communication tool, and so much more.

TDF focuses on how people act and interact. It helps make confusing or frustrating differences easier to understand and navigate. The model is simple, memorable, and powerful enough to support better work, stronger relationships, and more effective teams.

More than 300,000 people in 20 countries have experienced TDF during the past 30 years.

Services offered

From individual insight to organizational change.

01

TDF Pattern Inventory

02

TDF Learning and Training

03

Team Intervention, Consulting, and Executive Coaching

04

TDF Trainer Certification

Present and past clients

Trusted across industries and borders.

American ExpressA-STAR – SingaporeBallet WestBank Hapoalim InternationalBlue Cross Blue Shield MassachusettsBank of OklahomaBritannic AssuranceCarolinas Health SystemChesapeake UtilityChesterfield Virginia County GovernmentCitiGroupChicago Mercantile Exchange GroupCornerstone Propane / Coast Energy GroupCorporate Risk Solutions LLCEncore Capital GroupExpediaFifth Third BankFirstUSA / Bank OneFleet Credit Card ServicesGerber Scientific Instruments CompanyGreat Western BankIBMJP Morgan ChaseLoanMeMcAfeeNordstrom CreditOrangetheory FitnessPioneer InvestmentsPNC BankRoyal Bank of CanadaSociété GénéraleSugarCRMTicomixTowerGroupSiemens CorporationSnap! FinanceUniCredito ItalianoWelk Resorts

Your turn

See the world through your pattern.

Take the TDF Test

Stewardship and operation

Built on shared ownership.

Intellectual property

The intellectual property for TDF is equally owned by Gerald Klarsfeld, Traci Klarsfeld, Bill Roberts, and Ryan Stanley.

Testing app and website

The TDF testing application and website are operated by Waking Soul, Inc., doing business as TDF, under a licensing agreement with the intellectual-property owners.