Driven by Mobile.
Delivered Anywhere.

The sell-side omnichannel advertising platform
powered by real-time mobile audiences.

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500K
Active Mobile
Apps
35B
Software Downloads
(SDK)
2.5B
Monthly Active Users
(MAUs)

What we do for mobile app publishers

Start.io helps mobile app publishers make money with ads. We deliver hundreds of millions of ads every day to more than 500,000 active mobile apps.

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What we do for brands and agencies

Start.io gathers billions of first-party,
privacy-compliant consumer signals
every day, processed at scale using
artificial intelligence

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Mobile AI
Audiences

Maia is an easy-to-use, single frame
platform for audience exploration and activation.

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What our clients say
StackAdapt

“As an industry-leading DSP, StackAdapt partners with high-performing supply-side platforms to connect premium supply with premium demand. Start.io has been an incredible partner for us, giving our clients better access to a diverse, global, mobile audience.”

Kevin Bhawnani
Lead, Solutions at StackAdapt
LiveRamp

Start.io’s first-party data has been available on LiveRamp across several countries since 2018 and can be activated on many platforms. Start.io has a rich, scalable, and diversified audience catalog, trusted by our data buyers.

Jill Maiolfi
Global Data Partnership Director at LiveRamp
Umlaut

Collaborating with Start.io has helped us create new insights and improve our product for our clients worldwide.

Carlos Teijeiro
Business Unit Lead at Umlaut
M8

With the help of Start.io, we’ve experienced over-performing CTR metrics, driving qualified sessions to our site. Start.io’s data-driven approach and execution elevated conversion rates and increased the brand presence of our clients, resulting in overall high performance.

Natalie Garcia
Paid Media Lead at M8
Mobincube

I am excited to be working with Start.io because it has really helped us deliver what our customers need from us.

Fernando Marzal Coquillat
Co-Founder and CEO at Mobincube
PubMatic

For over two years, Start.io has been one of our important partners, working with us to help our customers achieve their demand goal with high-quality inventory.

Jaan Janes
VP, Customer Success, Americas at PubMatic
Proof Advertising

We have partnered with Start.io across multiple clients for several years. They have been a great partner and we enjoy collaborating with them to develop unique mobile-first ways to meet our clients goals and objectives. Their platform provides trusted scale and we have seen proven quality results.

Heather Hager
Director of Media Services at Proof Advertising
M&C Saatchi Mobile

We worked with Start.io very closely which helped us a lot when it came to dealing with the challenges we needed to address.

Chris Mumford
Trading Director at M&C Saatchi Mobile