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Meet the team.

Accelerating the growth of real-world advertising is accelerating the growth of real-world advertising by making it easier to buy and sell out-of-home (OOH) ads – from billboards, blimps, and buses to wrapped cars and connected TVs in bars and restaurants. OOH advertising is the only traditional ad medium still growing, and is making the entire industry more streamlined and connected with one centralized space for marketers to buy, deploy, and measure OOH advertising and for media owners to sell, manage, and invoice their inventory.

Learn what OOH can do


Our Values

Solve for the customer

Creating value—for brands, screen hosts, and consumers—is why we exist. When they succeed, we succeed (and we love winning).

Do well by
doing good

We believe the technologies that will survive tomorrow are the ones taking a transparent human approach to pricing, privacy, and data today.

Work together

Our definition of “teamwork” goes beyond our immediate team. We believe in building an open ecosystem that any company can use to grow.


Tackling one thing at a time is the fastest path to success. But if we hear Sam say, “he who chases two rabbits catches neither,” we’re feeding him to said rabbits.

Our Team

Alex Ewing bio pic

Alex Ewing


Prior to joining, Alex was COO at LiquiGlide, an MIT material science spin-out where he led fundraising, hiring and intellectual property. Before that, he was a patent litigator at Wolf Greenfield and WilmerHale. He is a graduate of Harvard College and Harvard Law School.

Greg Wise

Greg Wise

Co-Founder & Chief Customer Officer

Greg was a founding member of the eCommerce team at Hubspot. After HubSpot, he founded Green Knight Funding, a private real estate investment fund for commercial property, and managed 5 million square feet of retail for Simon Property Group.

Johnny Schott

John Schott

Head of Finance

Prior to, Johnny spent eight years in finance at HubSpot, most recently as the Director of Strategic Finance. Before that, he worked as an auditor and consultant at PwC. He is a graduate of Providence College.

Investors and Advisors


Elyse Winer

Partner, Material Impact VC Firm

Elyse has been with us since the very beginning when she told us that Andrei really needs a less-angry looking headshot (still working on that). She brings a wealth of experience in how we can think about our growth from both an investment economics and marketing perspective.


Todd Garland

CEO of BuySellAds &

Todd is another early-stage HubSpotter who founded (back when exact-match domain names were really good for SEO). He (and his team) have helped us learn what we didn't know we didn't know about what makes adtech marketplaces such unique challenges and unique opportunities.


Erin Huard

Director of Partnerships at Topgolf

Erin brings an extremely unique perspective as someone who has deep career experience in AdTech (she actually led AdOps at, before Todd became CEO). At Topgolf, she's executed the exact strategy we want to enable for small business owners. She speaks with the voice of our customers but from a perspective that enables us solve problems our customers didn't know they had.


Andrew Miller

VP of Innovation and Product Engagement at Outfront

Andrew is responsible for developing innovations across the OUTFRONT portfolio of assets and producing new products and partnerships that enhance consumer engagement. He brings close to 20 years of experience focused on emerging technology trends in the OOH space with time spent at various WPP media agencies.


Brian Halligan

Co-Founder & Chairman at HubSpot

Brian Halligan co-founded the company where most of our current team originally met. He taught us to be better at things we didn't even know we were supposed to be good at. His strategic and leadership philosophy has strongly influenced our own.


Jeanne Hopkins

Marketing & Revenue Operations Leader

Jeanne was one of's first customers, but long before that she was a mentor for our team during her time at HubSpot. We're marketers marketing to marketers about marketing, and she provides guidance and feedback from her breadth of experience while also serving as an embedded voice-of-the-customer.

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This is the new way to expand your brand's reach.


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"We've run a lot of performance acquisition campaigns using traditional media, but billboards were a first for us. We've 5X'ed our investment on every single campaign this year because of OneScreen's advanced targeting and measurement suite.”
"What I like about OneScreen is the ability to extend the brand narrative to out of home, telling a nice visual story that is connected to the data.”


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