Ehresmann Engineering
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A Leader in the Communications Tower Industry Since 1983 Situated in rural southeastern South Dakota, EEI has provided services in all 50 states and the world.
Ehresmann Engineering is an engineering consulting and steel fabricating firm, incorporated in 1983 to meet the highly specialized needs of the communication industry. Engineering projects have been as diverse as design, inspection, and project management in projects involving structures, material handling, power transmissions, and coal and aggregate processing. The company has completed projects
09/23/2025
Ehresmann Engineering in Yankton is NOW HIRING WELDERS to help us build the communication towers that connect our nation!
We offer:
Competitive pay with shift differential
Day and night shifts available
Health insurance & 401(k)
Paid vacation and sick leave
Ready to join our team? Stop by and apply in person at 4400 W. 31st St., Yankton, Monday-Friday, 8 a.m. - 5 p.m.
06/01/2023
YMA 2023
Ehresmann Engineering Thanks for pouring into this group of young adults by giving an awesome tour of your facility today!
03/15/2023
💥Here is a picture of a new 70' RCAG tower just installed in Michigan built by Ehresmann Engineering!
The most important feature of the RCAG Tower is the integration of staircases with the towers to replace the ladders on traditional Towers. Greatly increasing safety and ease of access the staircases are a complete game changer for the installation and maintenance of the equipment mounted on the platform!
02/01/2023
❄️Yankton might be starting to get tired of all the snow, but it does look pretty on our Monopine out front!
🌲Our Monopines branches have been wind tunnel tested with sustained winds of 115 mph! We manufacture the pole and branches in-house allowing complete control of the process to ensure superior quality.
01/04/2023
Did you know that Ehresmann Engineering has 55' Long Paint Booth to paint & conceal the monopoles that are fabricated there?
This paint booth helped create numerous different projects that are now located all over the 50 states!
12/21/2022
It's time to see what Ehresmann Engineering is all about!
This picture is of 2 of our welders welding the monopole baseplate.
So what's a monopole? A monopole will one day be a completed tower you'll see used as a radio antenna. Ehresmann Engineering monopoles are fabricated from high strength structural steel, are a continuous, and even taper with no irregular bolted joints or section splices. We offer painted monopole options for concealment.
12/20/2022
⚠️Ehresman Engineering is HIRING! For more information please call (605) 665-7532
Ehresmann Engineering A Leader in the Communications Tower Industry Since 1983
04/13/2021
Here is our Resto Mode Vented Canister we installed in the last 2 weeks. We replace the existing solid 31” diameter canister with our 54” diameter vented canister. A great way to keep your radios cool
06/12/2019
Nice before and after of an EEI Monopine Rebranch job.
EEI Monopine- Po***ck Pines, California
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Contact the business
Address
4400 W 31st Street
Yankton, SD
57078
Opening Hours
| Monday | 8am - 5pm |
| Tuesday | 8am - 5pm |
| Wednesday | 8am - 5pm |
| Thursday | 8am - 5pm |
| Friday | 8am - 5pm |