Hydrogen

Hydrogen Cited as one of Washington's Best Workplaces by PSBJ four years in a row.

Hydrogen, a full-service advertising agency, is named after the simplest element in the universe. By harnessing the power of simplicity, our ideas are designed to leave an unforgettable impression on an audience as well as a company's bottom line. Local, regional and international clients include Heritage Bank, Accoya, 365 by Whole Foods Market, Keysight Technologies, Kohler, The Polyclinic, Kenworth Truck Company, Icynene and Windermere Real Estate.

Tomorrow marks our 25th birthday! 🎉 🎉 We are so grateful for the past two and a half decades and can’t wait to see where...
09/04/2026

Tomorrow marks our 25th birthday! 🎉 🎉 We are so grateful for the past two and a half decades and can’t wait to see where we go in the next 25! Cheers to Hydrogen— past, present and future!

Ever wonder what it takes to run an ad agency in today’s day and age? Check out The Ad Podcast’s recent episode with our...
09/02/2026

Ever wonder what it takes to run an ad agency in today’s day and age? Check out The Ad Podcast’s recent episode with our very own Mary Knight, where they cover everything from how to build a supportive culture at a remote agency to maintaining long-term relationships with clients. Link in bio to watch the full episode!

We’re soaking up the last bit of summer with all the extracurriculars ☀️ From team hangs to outdoor hobbies, the crew ha...
08/28/2026

We’re soaking up the last bit of summer with all the extracurriculars ☀️ From team hangs to outdoor hobbies, the crew has really been making the most of it!

We’re over-the-moon excited to welcome Pirkko Terao back to our team as Director of Production and Operations. Along wit...
08/26/2026

We’re over-the-moon excited to welcome Pirkko Terao back to our team as Director of Production and Operations. Along with her role, she also joins the Leadership team. Pirkko, once the Production Director at Hydrogen, brings new experience and perspective from REI and Amazon back to us, and we couldn’t be more thrilled she’s back. Welcome home, Pirkko!

PS–link in bio for her book, Mercy Flights!

Say cheese! Here’s a sneak peek of Hydrogen’s picture day 📸A special thanks to Stanton Stephens for making us look and f...
08/18/2026

Say cheese! Here’s a sneak peek of Hydrogen’s picture day 📸
A special thanks to Stanton Stephens for making us look and feel our best in front of the camera!

08/17/2026

We had the best time at our annual Garden Party last week on Vashon! From craftivities to shave ice with homemade syrups, there’s nothing better than getting the team all together for a fun filled day 💐🍧🎨🫶

What can we say, we’re kinda chic! 😉
08/13/2026

What can we say, we’re kinda chic! 😉

From business to happy hour, our team had a great time hosting our long-time client, Kenworth Truck Co., in person last ...
08/11/2026

From business to happy hour, our team had a great time hosting our long-time client, Kenworth Truck Co., in person last week!

We’re wrapping up our Thumbtack Money Booth activation this week! It’s been a fantastic and wild ride bringing this acti...
08/07/2026

We’re wrapping up our Thumbtack Money Booth activation this week! It’s been a fantastic and wild ride bringing this activation to life this summer with our dedicated crew 💸

Work hard, play harder 😉 Our team has been having fun in the sun this summer! Check out some of our adventures above ☀️🏖...
08/04/2026

Work hard, play harder 😉 Our team has been having fun in the sun this summer! Check out some of our adventures above ☀️🏖️🎾🌊

Address

255 S. King Street #800
Seattle, WA
98104

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12063899500

Website

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