We are O'Brien
an independant band of problem solvers,
hell-bent on creating
change for good.


We’ve got people you’re sure to like, and we produce creative you’re bound to love. It wins hearts and minds. Tugs at heartstrings. Elicits a hearty belly laugh. Or simply resonates with a knowing wink and a nod. We consider creative to be your voice to the world, and that’s why our team creates award-winning work that’s never off key. Print. Broadcast. Interactive. Outdoor.

OMG, do we love all things digital. We’ll help you with strategy and execution that stands out in the online universe. Social media that starts conversations and finishes the sales cycle. SEO and PPC that are more than just the sum of their letters. And banners, rich media and online advertising that do more than log click-throughs. You can measure it on your bottom line.

Production is where the details count, and we’re a stickler for those. We’ll handle the pre-pro, printing, press checks and print vendors. We’ll also take care of the development details of your digital. And we’ll book all your broadcast including casting, crew, styling, locations, music and make sure it gets in the hands of the respective media.

Do customers buy your sizzle or your steak? Should you target influencers, thought leaders, brand ambassadors, or tween girls with smartphones? Our strategy department dissects and puts together just the right approach for each assignment. Every product has a brand.

We have a full-service, in-house media team with local and national planning and buying capabilities for every medium. We have access to extensive research and analysis tools including, but not limited to, Scarborough, Neilson, Arbitron and comScore.

It used to be that client service meant five-martini lunches and a nice fruit basket during the holidays. That was last season’s Mad Men. At O’Brien, clients rely on us for sound, strategic thinking across the board from start to finish. They need organizational gurus who keep the process moving along.

The O'Brien Team

Our creative minds will make your ideas possible

Terri O’Brien

Terri O’Brien

President/Executive Creative Director

Terri directs and oversees the agency’s creative product. She’s well regarded as an outstanding business leader and ardent advocate for Colorado, creating campaigns for HealthOne, University of Colorado, Metro State University and the Mayor's Office.

Cassie Augustine Jones

Cassie Augustine Jones

Chief Strategy Officer

A seasoned marketer with over 18 years of experience, Cassie is responsible for advertising strategy, client service and, ultimately, obtaining ROI for our clients. She approaches every project using extensive market research and an in-depth review of target audience perspectives.

Jim Conwell

Jim Conwell

Executive Vice President/CFO

Jim is a founding partner in O'Brien Advertising and is a mastermind at overseeing operations and finance for the entire organization. He’s a veteran mover and shaker in the Colorado ad scene.

Jim Morrissey

Jim Morrissey

Creative Director

For more than 15 years, Jim has written and created for clients including Ford, P&G, The Robert Wood Johnson Foundation, and The Colorado Lottery. From branding to integrated marketing, Jim has guided clients through the always-changing landscape of the industry.


See what we have done for our happy clients


Cassie Jones, Chief Strategy Officer | 303.820.2174 | cjones@thinkoba.com



O'Brien Advertising

1444 Wazee Street | Suite 333 | Denver Co