What are the opening hours?

Monday 7:30am - 5pm Tuesday 7:30am - 5pm Wednesday 7:30am - 5pm Thursday 7:30am - 5pm Friday 7:30am - 5pm

McMahon

Call Directions Website Contact the business

McMAHON has provided full-service, professional engineering and architectural services to our valued clients. We will design and build it your way.

The McMAHON group of companies is made up of three affiliated companies with a professional staff of over 160 employees that includes Architects; Civil, Process, Electrical, Environmental and Structural Engineers; Land Surveyors; Contract Operators; Administrative and Support Personnel. Each company complements the other, so that a broad spectrum of professional services can be offered to our clients to meet their specific needs. Design/Build, Project Management, land procurement and various other project delivery methods are a service we provide to clients. McMahon's page is collaborating with our commitment to helping and educating our community. Material we deem as inappropriate or not consistent with our mission will be removed.

10/22/2026

💙🏈 Let’s show up for Menasha!

Menasha High School is competing in the T-Mobile Friday Night 5G Lights Contest, and McMahon is excited to help spread the word!

A win could help secure funding for the rebuild and improve the high school stadium after the tornado damage.

🗳️ Cast your vote for here for Menasha High School: http://fn5gl.t-mobile.com/vote/menasha-high-school

Come back to vote each day through October 25th, and share to help get the word out!

Voting is free, so let’s rally together and bring this one home for Menasha. Go Bluejays!💙

10/19/2026

Work with purpose. Give back with purpose. 🌱 Pictured here is one of our members, Matt Steger, who took time to clean up one of our local highways that he adopted last year.

One of the benefits of being part of McMahon is paid time to volunteer in our communities. From projects like Adopt-A-Highway to other local efforts, our employees can take time to make a difference beyond their everyday work.

Community is at our core and we're proud to support our members who give back to them!

10/16/2026

Happy Boss’s Day to the leaders who help shape McMahon’s culture and success every day! 👏

Today, we recognize Paul Benedict, Matthew Greely, Nick Vande Hey for their dedication, vision, and commitment to supporting our employees, clients, and communities. Their leadership helps drive innovation, foster collaboration, and create opportunities for our team to grow and succeed.

We recognize all of our division and regional office leaders, we appreciate everything you do!

10/14/2026

Communities thrive when they have strong leaders in place. McMahon's Public Safety & Municipal Management Division is assisting the City of Oak Creek with the recruitment of its next Director of Public Works.

You can learn more about the position and how to apply here: https://mcmgrp.com/public-safety-and-municipal-management/ -STAFFING

10/13/2026

'Heading to the Wisconsin Wastewater Operators Association Conference? Stop by and see McMahon!

Our team is excited to connect with wastewater professionals from across the state and discuss the challenges and opportunities shaping the future of water and wastewater systems.
Visit the McMahon booth #519 to meet our experts, learn about our water and wastewater services, and discover how we partner with communities to deliver practical, sustainable solutions.

10/08/2026

A little business, a lot of connections, and plenty of fun!

Our McMahon team is having a great time at the League of Wisconsin Municipalities Civic Connection Conference.
If you're attending the conference, stop by booth #323 and say hello, we'd love to meet you and hear about your community's goals.

10/06/2026

We're excited to be attending the League of Wisconsin Municipalities Civic Connection this week!

If you'll be at the conference on Thursday, be sure to stop by our booth #323 and connect with our team. We'd love to talk about the challenges and opportunities facing your community and share how our planning, engineering, public safety, municipal management, environmental, and infrastructure experts can help support your goals.

Whether you're exploring future projects, looking for innovative solutions, or simply want to introduce yourself, we look forward to meeting you (include hand wave emoji)

10/02/2026

Heading to the League Civic Connection Conference October 7-9th?

Join Mark Rohloff, Manager of Public Safety & Municipal Management at McMahon, as he explores alternative approaches to shared public safety services and discusses how data-driven shared service studies can help communities make informed decisions about their future.

📅 Thursday, October 8
⏰ 4:30–5:00 PM
📍 Stage A
🎤 More than Mergers – Options for Shared Public Safety Services

09/29/2026

🎓 We're heading to the MSOE Career Fair tomorrow September 30th!
Whether you're interested in engineering, surveying, planning, architecture, environmental services, or construction-related careers, our team is eager to discuss internships, co-ops, and full-time opportunities available at McMahon. Swing by our booth to meet with some of our team!

09/28/2026

🎓 Heading to Michigan Tech Career Fair on September 29th? So are we!
McMahon is excited to attend the Michigan Tech Career Fair and connect with the next generation of engineers, planners, surveyors, architects, and environmental professionals.
Stop by our booth to learn more about life at McMahon, explore career paths, and see how you can make an impact on projects that strengthen communities throughout the Midwest.

Address

1445 McMahon Drive
Neenah, WI
54956

Opening Hours

Monday	7:30am - 5pm
Tuesday	7:30am - 5pm
Wednesday	7:30am - 5pm
Thursday	7:30am - 5pm
Friday	7:30am - 5pm

Telephone

+19207514200

Website

http://www.mcmgrp.com/

Alerts

Be the first to know and let us send you an email when McMahon posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to McMahon:

Want your business to be the top-listed contractor in Neenah?