Rikoshea Contracting, Inc. is a 20-year family owned business crediting much of our success to our customers, trade partners and especially our dedicated, knowledgeable, and experienced staff.


Todd Grissom, Principal
Todd has been operating Rikoshea Contracting for 20 years with a total of 33 years of experience in the construction industry consisting of field, project and operations management. He has a history of concurrently directing multiple projects successfully through effective management and team collaboration.

Kathie Grissom, Controller/Principal
Kathie has 25 years of construction experience consisting of preconstruction and project coordination, and office management. She leads the finance department and controls business operations including financial statements, accounting, payroll, accounts payable, accounts receivable, tax compliance, licensing, audits and insurance compliance.

Michelle Wells, Human Resources/Office Manager
Michelle has 23 years of construction administration and human resource knowledge. She is responsible for the day-to-day management of HR operations and maintains functions such as employee compensation, recruitment, personnel policies and regulatory compliance. She acts as the liaison between our employees and our management team. She is also OSHA 30 certified and helps maintain our safety program.


Trevor Marksberry, General Manager
Trevor is a third-generation estimator/project manager native to Arizona bringing 15 years of experience to the table. He oversees the Estimating Department and works closely with Project Management to successfully find cost-effective solutions to common and complex construction challenges. Trevor is a hands-on manager and actively bids projects alongside his team.

Keith Oligschlaeger, Estimator
As a Valley of the Sun native, Keith has over 30 years of construction field, estimating and project management experience in both commercial and residential industries along with heavy civil earthwork. Keith is field performance and cost attentive, and with his background, this allows him to view potential and current projects with a unique point of view. Many of Keith’s clients confidentially utilize his estimates as the center point for our scope of work.


Sam Russler, Project Manager
Sam has 23 years of experience in all aspects of civil construction in the field and project management. He is a results-oriented, hands-on professional well-versed in contract negotiations, resource allocations and project scheduling. Sam has delivered countless projects through coordinating trades, developing partnerships and building positive relationships with trade partners and vendors while maintaining costs.

Javier Ornelas – Production Manager
Javier is a seasoned project manager with over 25 years of heavy civil construction experience. Javier started his construction career as a general laborer and has worked his way up to construction management by acquiring skills and talent to be successful in a wide variety of areas, including mass excavation, grading, trenching and paving.  He is also a skilled heavy equipment operator and is a Certified GNSS and Robotic Total Station grade checker.  Javier is a production and cost driven project manager who is able to utilize his experience to creatively find expert solutions for field related challenges.