TWM, Inc.

TWM, Inc. TWM is a 100% employee-owned firm providing civil/structural engineering, land surveying, & other geospatial services.

For 80 years, we have served the public & private sector throughout IL, MO, TN, & across the US.

Pierce Terrace isn’t just a school. It’s a living lesson in how design can shape the future. TWM helped deliver this 77,...
05/29/2026

Pierce Terrace isn’t just a school. It’s a living lesson in how design can shape the future. TWM helped deliver this 77,000 sq. ft. campus for 325 students, set within a 37-acre site and designed around DoDEA 21st Century Learning principles. This project went beyond classrooms and made the entire campus part of the learning experience.

The project’s commitment to sustainability earned the Special “Green” Award from the Concrete Council of St. Louis. Learn more about our work in this project snapshot: https://www.twm-inc.com/pierce-terrace-elementary-school/

TWM is proud to announce Adam Bilzing, a senior at Belleville West High School, as the recipient of the inaugural Jim Ba...
05/26/2026

TWM is proud to announce Adam Bilzing, a senior at Belleville West High School, as the recipient of the inaugural Jim Barganier Memorial Scholarship. Established in honor of our late colleague and friend, Jim Barganier, PLS, the scholarship supports students pursuing STEM-related degrees and reflects Jim’s passion for mentorship.

Director of Geospatial Services, Josh Hoffmann, was honored to present the scholarship and recognize Adam’s hard work and achievements alongside Jim’s family at the school’s awards ceremony.

You can read more about Adam, the scholarship, and Jim’s legacy on our website: https://conta.cc/4u3MEnr

Congratulations, Adam! We look forward to seeing more of your accomplishments in the future.

We're pleased to announce Jon-Michael Smith's promotion to Geospatial Services Manager - Swansea! After 15 years of grow...
05/22/2026

We're pleased to announce Jon-Michael Smith's promotion to Geospatial Services Manager - Swansea! After 15 years of growth in the industry and three impactful years with TWM, Jon-Mike brings a wealth of knowledge and a proven track record to this exciting new chapter. Managing our land surveying and geospatial services from our headquarters in Swansea, IL, he plays a key role in making sure our clients always have access to fully equipped, expertly matched survey crews, no matter the size or complexity of the project. His commitment to staying responsive to client needs and schedules is exactly what helps set TWM apart.

Jon-Mike, your dedication to TWM’s core values—quality, relationships, stability, ambition, and loyalty—continues to enhance our organizational culture and drive success. Congratulations on this exciting milestone!

It's been a busy and rewarding spring for ! We've had the opportunity to connect with high school and college students ...
05/21/2026

It's been a busy and rewarding spring for ! We've had the opportunity to connect with high school and college students at career fairs across the region, sharing what a career in civil engineering and geospatial services looks like.

A special thank you to Allison MacInnis from our Land Development Engineering group and Ben Elliott from our Geospatial Services group for representing TWM at Freeburg Community High School's industrial arts career fair and investing their time in the future of our industry.

👷‍♂️We love supporting the bright minds shaping engineering's future!👷‍♂️

👋 Meet TWM’s newest employee-owners! 🎉 Please join us in welcoming the newest members of our team, each bringing incredi...
05/19/2026

👋 Meet TWM’s newest employee-owners!

🎉 Please join us in welcoming the newest members of our team, each bringing incredible skill and expertise to their respective service lines. These talented professionals represent growth in our Transportation Engineering, Water/Wastewater Engineering, GIS, Geospatial Services, and Administration groups. We're excited to support their development and work together toward TWM's continued success!

👋 Welcome aboard!

What keeps someone at the same company for 50 years?For Joe Moerchen, it comes down to the people, the work, and a minds...
05/14/2026

What keeps someone at the same company for 50 years?

For Joe Moerchen, it comes down to the people, the work, and a mindset of showing up every day ready to help solve problems.

From snowy survey fields in the 1970s to today’s technology-driven geospatial projects, Joe’s story offers a unique look at how both TWM and the surveying profession have evolved over the past five decades.

Read the full story in our TWM Today Newsletter: https://conta.cc/4ubLZB5

📣 Caught Ya’ Thinking Like an Owner! Join us in congratulating Aaron McKeal, our April Employee-Owner of the Month! As a...
05/07/2026

📣 Caught Ya’ Thinking Like an Owner! Join us in congratulating Aaron McKeal, our April Employee-Owner of the Month! As an IT Support Specialist in our Swansea, IL office, Aaron is someone people count on – not just for tech support, but as a dependable presence who genuinely cares about the workplace. From troubleshooting issues and onboarding new team members to assisting branch offices and helping organize events through the young professionals group, Aaron shows up fully in everything he does. This recognition is a testament to Aaron’s ownership mindset and outstanding commitment to TWM.

When asked what employee ownership means to him, he said, "It means that no matter the location or department, we're working as one team. Going out of your way to help someone isn't just a kind gesture — it strengthens the company as a whole, because when you pour into one bucket, you're pouring into all of them."

🎉 Thank you for all you do and congratulations, Aaron!

The St. Louis Area Young Professionals group had a great time recently gathering at the Swansea, IL office to learn abou...
05/01/2026

The St. Louis Area Young Professionals group had a great time recently gathering at the Swansea, IL office to learn about stormwater and hydraulic modeling. A huge thank you to Chris Kuester and Kyle Lynch for leading such an informative session! One of the best parts of these meetups is seeing colleagues from different offices and service lines come together to share knowledge and build connections.

At TWM, we believe the strongest teams are ones that know each other, understand each other's work, and look for ways to collaborate. These moments make that possible.

For over 150 years, this building has told a story. In 2018, it was ready to tell a new one. Using 3D laser scanning, TW...
04/30/2026

For over 150 years, this building has told a story. In 2018, it was ready to tell a new one. Using 3D laser scanning, TWM helped preserve key architectural features from the past while supporting its transformation into a modern museum space.

See how history was brought to life in this project snapshot:
https://www.twm-inc.com/missouri-botanical-garden-museum-house/

This past weekend, members of laced up their shoes and hit the pavement for the MoDOT Work Zone Awareness Run, and we ...
04/29/2026

This past weekend, members of laced up their shoes and hit the pavement for the MoDOT Work Zone Awareness Run, and we couldn't be prouder. 🧡

Work zone safety is something we take seriously every single day, and seeing our team show up to honor that commitment outside of the office means everything. Thank you to everyone who participated, and thank you to MoDOT for bringing awareness to this important cause.

Proud to be a sponsor. Prouder of our people. 🧡

Address

4940 Old Collinsville Road (HQ)
Swansea, IL

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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