Why Sigma?

Since 1967, SIGMA has helped thousands of organizations across North America develop their people potential and increase organizational effectiveness.

Our team of experts work closely with clients to increase organizational and leadership effectiveness and maximize their success. From managing a project end-to-end, to providing individual assessments and valuable knowledge resources, SIGMA will quickly become the strategic partner you rely on.

What sets SIGMA apart?


  • We have spent over 50 years developing science-based assessment products and leadership coaching services.
  • We have conducted over 4 million assessments and received nearly 4,500 academic citations.


  • We bring simple, intuitive platforms and real-world applicability to our suite of assessments and coaching.
  • Our tests, programs, and customer care are backed by scientific testing and over 50 years of practice.


  • We have worked with over 8,500 public and private organizations across North America.
  • Over 400 of our clients have been with us for more than 10 years.
  • We’ve helped retail clients reduce employee terminations by 80% within the first 4 months and total turnover by 50% within the first year.
SIGMA has been trusted by Fortune 500 companies, hospitals, universities, colleges, and government agencies. See our clients here.

Customized Programs

Contact us to discuss how we can put our experience to work to deliver results for your organization.