About Us

Who We Are

McMahon is an established engineering, architecture and consulting firm with more than a century of experience.

Our service-inspired philosophy sets us apart.

It is all about values, culture and relationships.

Values

We are honest, hardworking and dedicated to excellence.
The qualities we need to exhibit in order to act in the best interest of our clients:
- Act with honesty and integrity in all work and communications with clients and team members.
- Understand the value of work and contribute effectively to our operations.
- Strive for excellence with a commitment to continuous improvement.
- Place clients and customers first with a service-oriented approach.

Culture

We empower our employees, giving them the freedom to do what is best for your project, always.
The principles we uphold to foster an empowering work culture:
- Invest in employees to support their growth and success.
- Allow employees to operate and innovate with independence.
- Entrust employees to make the best decisions for their projects.

Relationships

Our goal is to be your trusted partner. We will earn your trust and confidence by meeting expectations and delivering successful projects.
The actions we take to become a trusted partner:
- Take time to truly understand clients’ needs, goals and challenges.
- Communicate openly and effectively.
- Be responsive and proactive.
- Always strive for client satisfaction.

That is the McMahon Way.

Our History

We began in 1909 serving the Wisconsin Fox Valley and since then have expanded our reach to work with clients and projects across the country and even around the world. Our firm is headquartered in Neenah, Wisconsin with offices in Illinois and Indiana. We are proud of the strong reputation we have earned among our clients and the long-term partnerships we have developed. 

Learn more about our history:

1909
1944
1944
1965
1968
1969
1971
1985
1987
1989
1991
1993
1993
1995
2005
2008
2009
2014
2018
2020
2021

1909

Albert E. McMahon founds A.E. McMahon Engineering Company.

 

1944

Company incorporates with the state of Wisconsin as McMahon Engineering Company.

1944

Merritt O. Clinton
President 1944 – 1968

1965

Company name changes to McMahon Associates, Inc.

1968

Arthur Scholl
President 1968 – 1971

1969

Company moves from downtown Menasha, WI to a new office on Midway Road in Menasha, WI.

1971

Robert E. McMahon;
President 1971 – 1985

1985

Dennis J. Lamers
President 1985 – 2018

1987

Affiliate Midwest Contract Operations, Inc. (MCO) incorporates serving municipalities with contracted operations and technical support. MCO becomes independent company in 2013.  

1989

Regional McMahon office established in Valparaiso, Indiana.

1991

McMahon, Inc. established as company’s Design/Build firm.

1993

Regional McMahon office established in Machesney Park, IL. 

1993

Miller Wagner Coenen parters with McMahon offering additional architectural services and is incorporated under the name Miller Wagner Coenen/McMahon, Inc. (MWCM).

1995

Corporate headquarters relocates to McMahon Drive within McMahon Business Park in Neenah, WI.

2005

SlaM Architects partners with MWCM.

2008

Architecture and Engineering services merge and operate under a single entity – McMahon.

2009

McMahon celebrates 100th anniversary.

2014

McMahon celebrates 105th anniversary.

2018

Paul E. Benedict;
President 2018 – present

2020

McMahon Associates, Inc. acquires the assets of RW Management Group, Inc., a Wisconsin-based public and emergency management consulting firm. 

2021

RW Management Services moves under the umbrella of McMahon as Public Safety and Municipal Management service group.

 

 

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