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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 7am - 5pm Friday 8am - 5pm

Alliant Systems

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United States
Portland, OR
Alliant Systems

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Oregon-based mechanical contractor known for our all-in-one approach.

10/05/2026

🥇 ⭐️ 🏆

Alliant Systems has once again been recognized as a Top Workplace among mid-size employers in Oregon and Southwest Washington by The Oregonian / OregonLive, marking the fifth consecutive year we’ve earned this distinction. This continued recognition is a meaningful reflection of the culture we’ve built together and maintained as we continue to grow!

At Alliant, we believe our greatest strength is our people. We’re committed to creating an environment where employees feel valued, supported, and empowered to grow, both personally and professionally. From active employee engagement groups and opportunities to connect across our teams to resources that support long-term career growth, we work intentionally to make our culture more than just words on a page. Being named a Top Workplace for five years running is an honor we’re proud to share with the entire Alliant team, whose talent, dedication, and commitment continue to make our company a top place to work.

#2026

09/23/2026

Our beautiful Portland headquarters, including detailing and mechanical room! ♥️

📷: Josh Partee

06/04/2026

Thank you to the awesome team at for bringing some serious style to our Open House event with custom embroidered bandanas and totes for our guests!

03/24/2026

We can’t believe the Multnomah County East County Flagship Library Project is finally complete! This gorgeous new public library, designed by Holst Architecture and constructed by Fortis Construction, focuses on community input and impact. Alliant Systems, a design-assist partner to Fortis, has led the plumbing, HVAC, and piping systems coordination and installation for the project. Special features include radiant flooring, AERMEC Air to Water Heat Pumps (AWHP), two-pipe slab recessed Jaga forced air convection units, AAON Air Handing Units (AHU), beautiful plumbing fixtures and features, hydronic piping and more.
This project was a CLT challenge and took a large BIM coordination effort from our in-house modeling team. Significant effort was taken to coordinate prefabricated pe*******on locations in the CLT decking, and it was crucial to keep our mechanical and plumbing systems hidden to let the CLT be the main feature of the space.

Shout out to our site team for their wonderful work: Chase Purtzer – Project Manager, Brian Young – Plumbing Foreman, Rykeir Smith – Fitting Foreman, Dustin Martin – Sheet Metal Foreman, and Adam Jarvis – Project Start Up.

03/02/2026

Alliant Systems’ Building Performance Services Team is proud to have supported Fern Ridge School District in securing a round one award through Oregon’s Early Compliance Action and Planning Program (ECAPP), helping the district get ahead of the state’s new Building Performance Standards (BPS).

Passed under House Bill 3409 in 2025, Oregon’s BPS requires large commercial and multifamily buildings to benchmark and report energy use, with the first compliance deadlines beginning as early as 2028.

This incentive helps offset early planning costs, including:
✔️ Energy benchmarking and reporting
✔️ Energy audits
✔️ Energy management and O&M planning
✔️ Steps toward full compliance

Congratulations to our Building Performance Services Team and Fern Ridge School District on this achievement!

Another round of ECAPP funding is launching soon, now is the time to start planning. https://lnkd.in/diS7yQ-2

01/12/2026

The Daily Journal of Commerce Oregon 250 recognizes leaders across Oregon whose work influences the built environment and strengthens local industries. Honorees are selected for their innovation, long-term industry impact, and dedication to excellence.

Join us in congratulating Alliant Systems’ Sean Murray, PE, LEED BD+C on being named to the Oregon 250. This recognition reflects Sean’s leadership, technical expertise, and dedication to high-performing, sustainable building systems.

Congrats, Sean!

11/10/2025

Big news from Alliant Systems — we’re building our new Portland headquarters! 🎉

Our new space in Goose Hollow will showcase what Alliant is all about: innovation, collaboration, and craftsmanship. The renovation of the former Fortis Construction office near Providence Park will turn the building into a modern, light-filled workspace built for connection and creativity.

Just one block from Providence Park and close to great local landmarks like Lincoln High School, MAC Club, and Hotel deLuxe, our new HQ is perfectly located for our growing team.

We’re proud to continue our commitment to the city we call home: Portland! 💚

Stay tuned — we’ll be moving in Spring 2026!

Thank you to our amazing partners:
Woofter Bolch Architecture
Nossa Norman Design Studio
Fortis Construction
Hyphen Studio

11/04/2025

Behold the cutest, scariest, and most creative winners from our children and pets costume contest and our pumpkin carving contest! Winners received a gift card and bragging rights!

🧟‍♀️☠️👻🕸️🕷️🦇🎃

10/29/2025

It’s Never Too Early - Our Holiday Giving Program 2025 is LIVE!

Since 2017, Alliant has partnered with the Christmas Family Adoption Foundation (CFAF), adopting local families to bring more joy and a little less stress during the holidays. Thanks to your generosity over the years, we’ve helped brighten the season for 172 people, including 107 children, and we’re ready to do it again!

There are so many ways to give:
🎄 Shop our virtual tree (Amazon Wish List)
💝 Donate gifts or funds
🎁 Volunteer to wrap or deliver presents

Key Dates:
🛍️ Virtual Tree: Now–Nov 26
🎁 Gift Drop-Off: Dec 3 (Pearl Office)
🎉 Wrapping Party: Dec 6
🚗 Delivery Week: Dec 8–12

This year, we’re also proud to extend our impact by supporting the Ronald McDonald House Charities in a separate campaign, helping families stay close to their loved ones during medical care. 🏠❤️

Let’s make this holiday season brighter for even more families, together. Visit the website link to participate: https://bit.ly/AlliantSystemsCFAF2025

Address

831 SW 17th Avenue
Portland, OR
97205

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	7am - 5pm
Friday	8am - 5pm

Telephone

+15036194000

Website

http://Alliant-systems.com/

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