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Castle Rock

Castle Rock Fire and Rescue Department

Bridge Inspections

Keeping Us Safe

A Day in the Life of a Bridge Inspector

Flood Mitigation

4 Steps to an Effective Flood Management Plan

Lead and Copper

Countdown to Compliance

How’s Your LSL Inventory Going?

Rice Lake Main St.

Ready to Reimagine Your Downtown?

7 Tips to Get Started

Let’s show the world what we can do together

As an employee-owned collective of engineers, architects, planners, and scientists, SEH partners with clients across the nation to tackle diverse infrastructure challenges and pave the way toward a sustainable future. Together, we are committed to Building a Better World for All of Us®.


Environmental Stewardship


End-to-end service


Local attention – national Network



Building a Sustainable Future

Our vision extends beyond blueprints. As citizens of the world, we believe it's our responsibility to foster positive change in the environment.
"I chose SEH because of the positive experiences I had working with their impressive professionals as a client for many years. My position utilizes my wastewater conveyance experience and provides opportunities to learn, collaborate, and grow professionally."
Dianne MathewsSenior Engineer 
“I had worked with many SEH employees in my time with city governments, and I was always impressed with the quality of work and the care given to assure client expectations were met. When I decided it was time for a change from the public sector to the private, I chose SEH because I wanted to be part of the team that does great projects and provides great service.”
Jen DesrudeSenior Engineer/Project Engineer
“At SEH, I get the opportunity to work on projects that are relevant to the community, which is one of the reasons I have been here for more than 24 years."
Justin GeseSenior Engineer
“As an employee-owner, I have a sense of pride for the quality of work we help to produce.”
Rafael Estrada Moncada Project Engineer

SEH News & Insights

July 22, 202411 min read

SEH Board of Directors Names 21 New Associates in 2024

SEH names 21 new Associates. Our 100% employee-owned firm nurtures excellence. Associate program rewards leadership, expertise, management, client ...
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July 22, 20248 min read

SEH Board of Directors Names 16 New Principals for 2024

SEH names 16 new Principals recognized for leadership, technical skills, and client service. As an employee-owned company, SEH rewards excellence with ...
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June 24, 202413 min read

Ready to Reimagine Your Downtown? 7 Tips to Get Started

If your downtown is due for an upgrade, these practical tips and real-world examples will help you get started and see the potential in your main street.
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June 24, 20244 min read

Countdown to Compliance: How’s Your LSL Inventory Going?

The lead service line (LSL) inventory deadline is approaching. Get helpful tips and reminders to complete your inventory and prepare for next steps.
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June 17, 20241 min read

Celebrating Excellence: SEH Winter 2023 AOE Award Recipients

Celebrating our winter 2023 employee-owners' achievements, the Act of Excellence program highlights Accomplishment, Character, and Teamwork in our vibrant ...
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May 15, 20241 min read

The Denver Post Names SEH a Top Workplace Award Winner in 2024

SEH wins Top Workplaces 2024 by The Denver Post, highlighting its dedication to a positive work culture through employee feedback.
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May 13, 20245 min read

Day in the Life of a Water Resources Engineer

Explore a day in the life of Riley Mondloch, SEH Water Resources Engineer, through an engaging Q&A.
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April 29, 20246 min read

SEH Launches Air Service Consulting: Meet Mike Bown & Chris Warren

Discover how SEH's enhanced Airport Planning team, with seasoned pros Mike Bown and Chris Warren, is shaping the future of air service consulting.
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April 11, 20241 min read

Jennifer Schmitz Named Employee Owner of the Year

Jennifer Schmitz wins Employee Owner of the Year at the 2024 Spring Conference for bolstering SEH's ESOP culture, marking its 30th year.
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100% Employee Owned

Join Our Team

100% Employee Owned

Shape the career YOU want. From flexible work options for a balanced life to limitless career-advancement potential, the opportunities at SEH are boundless. Join our team to feel the energy and excitement of contributing to impactful projects that make our world a better place.