MEP Engineering and Commissioning


We utilize Revit to create BIM models and construction documents for all listed mechanical and electrical design services.


leed design, leed documentation, leed consulting, energy modeling, basic comissioning and enhanced commissioning.


HVAC, building automation, temperature control, hydronics, plumbing, indoor air quality and humidification control.


lighting, power distribution, emergency and standby power systems, grounding, exterior and site lighting and fire life safety systems.


construction documentation, construction administration, energy conservation studies,, code analysis, building system evaluation, building system modeling.


us-vector-map 3916aMembers of PKMR are licensed in 44 States except those indicated on the map in red

(click to enlarge)



PKMR’s mission is to offer professional engineering services of high quality and integrity to Architects, Owners and Contractors that exceed their expectations.


PKMR’s vision is that by our work, long term relationships are developed and we are perceived as leaders in the engineering community.

PKMR offers a hands on approach to projects. Principals are generally heavily involved on projects and it isn’t uncommon that Principals are actively involved in the drawing production.

The environment more resembles a team versus a corporate structure. This enables us to be nimble and adapt to our client’s needs more quickly than the large firms.

The employment model is to hire young people and help them grow in the industry. As a result PKMR has benefited by having great employees with minimal turnover.


ethan linden
hallie scrivner
courtney zirkle
scott young, i.e.
kenny emhardt
ryan learned, p.e.
kevin henne, i.e.
todd elliot
shauna allen, p.e., l.c.
doug newstrom
marc douglas
paul herbert
alexis nevarez
jesse parkhurst
darren gotham
pete christiansen, i.e.
tim kaufman p.e.

PKMR Engineers was founded in March of 2002 by Jerot Pearson, Will Kent, Scott McKinley and Mike Raaf. Offices were established in Topeka, KS and Overland Park, KS.

Since that time PKMR Engineers has been fortunate to form some great relationships in the construction industry. As the firm grows much of the work comes from word of mouth and repeat clients. By 2010 the company had grown to over twenty people after starting with four.

2011 consisted of a ten year anniversary celebration with a company canoe trip is Southern Missouri where close to fifty people consisting of employees and their families attended.

In 2012, David Deatherage, Darren Thrasher and Kevin Zimmerman were promoted to Principals.

David Deatherage became an owner in 2013.  Darren Thrasher and Kevin Zimmerman became owners in 2016.


PKMR Engineers has many individuals with a passion to serve others.  We try to do this at many levels from each other to our clients to the greater community.  Our external outreach touches our local small communities, the Kansas City Metro area, nationally and internationally.  We are constantly looking at opportunities to serve and help where there is a need.

These are some of the lists of organizations and groups we actively support as companies and individuals.  We encourage you to learn more about them and feel free to ask us about them.

  1. Heart to Heart International
  2. Kansas City Rescue Mission
  3. Kapeh Utz
  4. Multiple water and building projects in Guatemala as well as multiple humanitarian projects in Haiti
  5. Miscellaneous projects in Mexico, Jamaica and Sri Lanka



13300 West 98th Street
Lenexa, Kansas 66215
p 913.492.2400

directions >
contact: Jerot Pearson


2933 SW Woodside Dr., Suite 104
Topeka, Kansas 66614
p 785.273.2447
f 785.273.0456

directions >
contact: Scott McKinley


2505 Anderson Ave. Suite 202
Manhattan, Kansas 66502
p 785.320.5260

directions >
contact: Chris Ahern

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