Improving the World Around Us

Successfully engineering harmony between the manmade and natural environment for more than 40 years.

CAP-STONE & Associates, Inc. dba Stone Environmental Engineering & Science (STONE) consists of a diverse and passionate group of professionals who love a challenge. From infrastructure design to ecological surveys to industrial compliance – we handle a wide variety of environmental, ecological, engineering, and surveying services to meet the needs of our clients. What sets us apart? Listening to our client’s needs and then actively responding and solving project challenges with their goal in mind.
It sounds simple – and to us it is!

ODOT’s DBE Consultant of the Year – 2018

ODOT's DBE Consultant of the YearDuring ODOT’s 2nd Annual Civil Rights Symposium for Transportation, STONE was awarded ODOT’s DBE Consultant of the Year Award. This award recognizes an outstanding DBE (Disadvantaged Business Enterprise) consultant that has developed a positive reputation in the industry for professionalism, integrity in work standards and performance; exhibits a commitment to business development; and upholds the spirit and principles of the DBE program. We are grateful to the five separate individuals who nominated STONE for this award and encouraged by the supportive response of many of our colleagues. For more information on how STONE can help fulfill your DBE goal, please feel free to contact us.

Green path with bridge

Our Mission

Engineering harmony between the manmade and natural environment.

Our Vision

Improving the world around us.

Our History

  1. Shaw Weiss & DeNaples Engineers and Environmental Scientists established in Dayton, Ohio.

  2. Founded Sparham and Sparham Consultants in Columbus, Ohio

  3. Name change to Stone Environmental and the acquisition of Shaw, Weiss & DeNaples.

  4. Became 100% woman-owned and is certified as a Disadvantaged Business Enterprise (DBE)

  5. STONE was awarded ODOT’s DBE Consultant of the Year Award.

  6. STONE was awarded WTS’s Innovative Transportation Solution Award.

  7. At the end of 2021, Stone Environmental Engineering & Science, Inc. acquired certain assets of Columbus Asphalt Paving (CAP). To reflect the addition of construction services to our professional ecological, environmental, engineering and survey services, in 2022 our name was altered to CAP-STONE & Associates, Inc. Under the trade name of Stone Environmental Engineering & Science, we will continue to provide the responsive and expert services STONE is known for. Likewise, under the trade name of Columbus Asphalt Paving, we will continue CAP’s 48-year tradition of providing quality asphalt paving, concrete, and milling work throughout central Ohio.

We’ve Worked With

We have contracted STONE over the past 10 years to assist us with various environmental issues including environmental compliance audits, developments of our facility’s SPCC and SQPP plans, preparation of chemical inventory or Tier 2 reports, and other related environmental services. STONE always responds promptly and provides quality environmental service in a cost-effective manner.