Roberts Companies, Your Employment Specialists


Richard Roberts

B.S. in Civil Engineering from University of California, Davis. A licensed Civil Engineer in California as well as nine other states. A licensed General Contractor in California. 30 years experience in the heavy industrial marketplace with over 20 years serving petrochemical clients and over 25 years owner of this firm.

Kathleen Roberts

Human Resources Manager
B.S. in Psychology and a Masters from University of California, Davis. The last 18 years have been spent as Human Resources Coordinator for the Roberts Companies.

Ella Marie Kallios, PHR

B.A. in Business Management from St. Mary's College, Professional in Human Resources Certification. Employed by Roberts since 1988, Ella Marie has been President of Roberts since 2001. Ella Marie is also very active in Community Affairs, Political Action Committees, and she sits on the Board of several Health and Safety Committees.

Terri Van De Veire

Account Manager
Employed by Roberts since 1995, Terri brings over twenty five years of CAD experience within the engineering field. She has held the positions of Training Specialist, IT Support, Project Manager and Staff Manager. Terri is responsible for overseeing the larger RTS accounts and procuring new RTS clients.

Jana Elizalde

Accounting Manager
Employed by Roberts since 2006, as our Accounting Manager Jana is responsible for general accounting, accounts payable, accounts receivable, employee management, office administration and department policies and procedures.  She continues to look for new and innovative ways to streamline the accounting department while focusing on employee needs and providing excellent customer service.

Lupe Caldwell

Account Manager
Having been associated with Roberts in field positions since 2003, Lupe joined our office staff in April 2009. She brings with her 15+ years of extensive recruiting and H.R. background.  Additionally, she has a positive proven record of Sales in a competitive field.  Her focus is on direct hires in a variety of industries.

Lisa Biggs

Lisa has more than a decade of experience in payroll and bookkeeping.  As a member of our accounting department team she performs multiple functions such as payroll, employee benefits and general record keeping.


P.O. Box 6204
Concord, CA 94524


Phone: (925) 689-8080
Fax: (925) 689-8728

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