About Us

A century of trusted product solutions.

About IntegrityFirst

Owned by Merchants Information Solutions, Inc. with more than 100 years of service, our pre-employment integrity test is a leading resource in the market today. Formerly known as American Tescor and the Merchants Integrity Test, this proven and successful test is backed by prominent Industrial and Organizational Psychologists. This makes IntegrityFirst a crucial first step in the hiring process.

Our Values

We’re devoted to and operate on four core values that we believe shape our company’s culture.


When helping customers, our community, employees and members, integrity is the foundation of our company.


Success of our company directly affects our customer experience with applied industry knowledge.


We believe teamwork empowers and gives ownership to employees that translates into better customer service.


As industry experts, we’re driven and focused to bring the most robust product solutions to the market.

 Merchants Information Solutions, Inc. is a member-owned Arizona company. In business since 1912, our unique line of identity theft solutions and employment screening services are leaders in trusted product solutions.

Merchants’ Background Screening solutions include: Credit, Criminal and Employment History Background Checks, Behavioral Psychological Assessments aka Integrity Testing, Drug Screening, and a variety of additional searches for employment screening.

Our Experts

Meet Stephen W. Gilliland and Jerel E. Slaughter, two preeminent I/O professors from the University of Arizona Eller College of Management. Stephen and Jerel work to support ongoing validation studies and research while helping to further advance the IntegrityFirst through a multi-year partnership.

Stephen W. Gilliland, Ph.D.

Assistant Dean, Eller Business College
Associate Dean, Executive Education
Executive Director, Center for Leadership Ethics
Arnold Lesk Chair in Leadership and Department Head
Department of Management and Organizations
Eller College of Management, University of Arizona

 Dr. Stephen W. Gilliland is the Associate Dean for Executive Education in the Eller College of Management at the University of Arizona. He holds the Arnold Lesk Chair in Leadership and is Department Head for the Management and Organizations Department. He also serves as Executive Director of the Center for Leadership Ethics. He previously served as Vice Dean for the Eller College. Prior to moving to Arizona, Gilliland received degrees from the University of Alberta and Michigan State University (Ph.D., 1992) and was on the faculty at Louisiana State University.

Jerel E. Slaughter, Ph.D.

Associate Professor and Assistant Department Head
Department of Management and Organizations
Eller College of Management, University of Arizona

 Jerel Slaughter is an Associate Professor and the Assistant Department Head in the Department of Management and Organizations at the University of Arizona. Prior to moving to Arizona in 2002, Slaughter earned degrees at Emory University, University of Hartford, and Bowling Green State University (Ph.D., 2000) and was on the faculty at Louisiana State University.


“The IntegrityFirst team is a highly professional group. We always feel confident recommending their solutions to our customers knowing they truly put the customer first.”

Ed Z.
Managing Director, Insurance and Risk Management

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