PK10ÅâÂÊ˵Ã÷ Consulting traces its roots back to 1972, when Donald PK10ÅâÂÊ˵Ã÷, Sr. opened Donald PK10ÅâÂÊ˵Ã÷ Associates in Deerfield, Illinois. Starting with three staff members, early projects included the Village of Riverwoods, Illinois, Lincolnshire Corporate Center in Lincolnshire, Illinois and Del Mar Woods in Bannockburn, Illinois.
In 1982, son, Donald PK10ÅâÂÊ˵Ã÷, Jr. began his career at the firm as a staff engineer. The following year, son, Peter PK10ÅâÂÊ˵Ã÷ joined the firm as a staff engineer. Over the next ten years, the firm grew in size from eight staff members to thirty and the client base grew to include over 1,000 different companies and municipalities.
Don and Peter envisioned the firm growing further in size and in geographic coverage. So, in 1992, with their father’s blessings, they established PK10ÅâÂÊ˵Ã÷ Consulting.
Today, after five decades, the PK10ÅâÂÊ˵Ã÷ name is synonymous with quality and dedication to our clients. With more than 300 employees, thirteen offices across the United States and over 8,000 clients, PK10ÅâÂÊ˵Ã÷ Consulting continues to lead the industry as one of the most responsive, innovative and technologically advanced civil engineering and surveying firms in the country.
The PK10ÅâÂÊ˵Ã÷ Story

Donald PK10ÅâÂÊ˵Ã÷ Associates opens in Vernon Hills, Illinois. With three staff members, early projects included the Village of Riverwoods, Illinois, Lincolnshire Corporate Center in Lincolnshire, Illinois and Del Mar Woods in Bannockburn, Illinois.

Donald PK10ÅâÂÊ˵Ã÷, Jr. begins his career at Donald PK10ÅâÂÊ˵Ã÷ Associates as staff engineer.

Peter PK10ÅâÂÊ˵Ã÷ joins Donald PK10ÅâÂÊ˵Ã÷ Associates as staff engineer.

Don and Peter envision the firm growing further in size and in geographic coverage.  With their father’s blessings, they establish PK10ÅâÂÊ˵Ã÷ Consulting.

PK10ÅâÂÊ˵Ã÷ Consulting’s first branch office is opened in Downers Grove, Illinois.

The first acquisition of PK10ÅâÂÊ˵Ã÷ Consulting is completed.  Hagensee Surveying of Naperville, Illinois is acquired to strengthen and expand the surveying division of the firm.

PK10ÅâÂÊ˵Ã÷ Consulting expands its reach with the opening of its first regional office in the Denver metro area (Lone Tree, Colorado).

In support of several clients, an office is opened in Reno, Nevada.

With an eye towards new opportunities, Capital Engineering in Carson City, Nevada is acquired.

In order to offer a broader range of services, PK10ÅâÂÊ˵Ã÷ acquires Carroll & Lange, a well-respected firm in Centennial, Colorado.

PK10ÅâÂÊ˵Ã÷ Consulting enters into a regional partnership with Rolf C. Campbell & Associates, an established civil engineering firm with a long history in the Chicago-metro market.

PK10ÅâÂÊ˵Ã÷ joins forces with Cowhey, Gudmundsen, Leder, an experienced and well-respected civil engineering firm in the Chicago metro area.

To better service clients and make commutes easier for staff, PK10ÅâÂÊ˵Ã÷ moves into space in a prime downtown Chicago location.

Accurate-Engisurv in Westminster, Colorado is acquired, bringing an enhanced scope of civil engineering and surveying to the region.

The acquisition of Tamarack complements PK10ÅâÂÊ˵Ã÷ Consulting’s civil engineering and surveying offerings and adds expertise in oil and gas, Geographic Information Systems (GIS) and Colorado special districts.

PK10ÅâÂÊ˵Ã÷ opens a Dallas office in a strategic response to the area’s rapid economic growth.


PK10ÅâÂÊ˵Ã÷ newest location, its 10th office opens in Austin, Texas.

PK10ÅâÂÊ˵Ã÷ opens office in Fort Worth, Texas to better serve clients in the diverse and expanding market in greater DFW,

October 2022 marks our 50th year of providing civil engineering and surveying services under the PK10ÅâÂÊ˵Ã÷ brand! To learn more, visit Celebrating 50 Years…1972-2022!

With staff commutes in mind, PK10ÅâÂÊ˵Ã÷ opens a Denver office, its second office in the greater Denver area.

PK10ÅâÂÊ˵Ã÷ opens its third location in the greater DFW area.

Incorporating the RealSearch team, led by Jeremy Deal, into the PK10ÅâÂÊ˵Ã÷ organization allows us to offer all our services under one roof in greater DFW area.

The acquisition of Abram Dashner, RPLS LLC, marks PK10ÅâÂÊ˵Ã÷’s second office in Austin.

PK10ÅâÂÊ˵Ã÷ further expands its presence and service across the southeast region with the opening of a Nashville office managed by Matt Korte, PE.
Remembering Our Founder
Don PK10ÅâÂÊ˵Ã÷, Sr.
Donald PK10ÅâÂÊ˵Ã÷, Sr., the founder of Donald PK10ÅâÂÊ˵Ã÷ Associates—a consulting civil engineering firm that later evolved into PK10ÅâÂÊ˵Ã÷ Consulting—was a man of remarkable talent and unwavering integrity.


Colleagues and clients who had the privilege of working with Don remember him not only as a highly skilled engineer but also as a kind, honest, and ethical individual. Even in his later years, he remained deeply engaged—reviewing plans, offering invaluable advice, and mentoring young staff, including his grandsons, who were fortunate to learn from his wealth of experience.
Don's impact on the field of civil engineering and on those who knew him is immeasurable. His legacy will endure, and he will always be remembered with admiration and respect.