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Here are some answers to the questions we get asked most frequently. If you don't see a question you need an answer to, please contact

Our Story

I wish I could tell you that we started our company from our freshman dorm room during college and raised a gazillion dollars in venture capital. That would have been really cool.


Instead, OnePortal was started by three regular guys who believe in working hard, always putting the customer first and that slow and steady wins the race. We also happen to all love the advertising space.


We believe in the power of advertising and the everlasting impact it can have--whether it’s a change the world moment like the Apple Macintosh ad from 1984 or the endlessly humorous Budweiser commercial showing a group of friends call each other and shout “Wassssuuuuupppp!” into their phones.


We also believe in the value that advertising provides. It enables social media to exist and provide, free of charge, the ability to host endless streams of videos and photos and to connect with long lost friends and relatives from across the globe. It also enables the Internet to largely remain free of charge. It allows children and people of all ages to access the same information regardless of socioeconomic background. Most importantly, it allows for a free press.


Not to be overlooked, advertising also provides those moments of serendipity. Though few people may admit to it or even realize it, advertisements can play a huge role in helping find those perfect suede pumps or that really cool wireless gaming headset. And let’s not forget that many small businesses rely on advertising to drive business and keep their staff employed.


As a small business with less than twenty five employees, we know this well.


We also know that the digital advertising industry can be complicated. It can also be tumultuous. Just in the last two years we’ve seen privacy changes and the elimination of cookies dramatically impact the ability of businesses to gauge performance of their marketing spend.


That’s why we started OnePortal. To help our clients navigate the dynamic digital advertising landscape and to transform their terabytes of marketing data into information to help guide their business.


We’re here to help. It’s what we enjoy doing.




Paxton Song


Why OnePortal?


We offer 24 hour reporting with full access to campaign data and metrics via our application. We also leverage world-class deterministic attribution using the Google Data Pipeline to ensure trusted & verified data unlike other platforms that use their own probabilistic attribution.


Our managed service team has over 20 years of industry experience, knowledge, and expertise in providing a "white glove" service. Throughout each step of your digital media campaigns we provide ongoing auditing, consulting services and apply best-practices that deliver results.


Easily test new channels and run A/B experiments with access to over 80 exchanges and a private marketplace. OnePortal can help scale any size business.


OnePortal is an extension of your team that takes the complexity out of programmatic ad buying, giving you more time to focus on the rest of your marketing strategy and team.


OnePortal is a no hidden fee, no black box digital advertising agency & platform.

Our proprietary technology utilizes Google's 1st party data and behavioral targeting to reach in-market consumers across the Internet.

We help your business discover and connect with the right customers at the right time through accurate deterministic attribution.

Leadership Team

Leadership Team


Paxton Song

Co-Founder, Chairman

  • LinkedIn

Paxton has a passion for building companies and for e-commerce, marketplaces, and AdTech. He leads OnePortal with over 20 years of experience in the industry. A serial entrepreneur, Paxton also founded, Veruta, the first US-based company to offer personalized remarketing where he also was awarded a patent for the tracking and monetization of display ads.


Paxton is a former professional golfer and holds a BSBA in Finance from Boston University’s Questrom School of Business, and an MSIS/MBA from the same school.


Dave Lienemann

Co-Founder, COO

  • LinkedIn

Dave has worked in the advertising industry for over 15 years. Beginning on the publishing (SSP) side then to the demand (DSP) side through various AdTech companies. Working in AdOps, Account Manager and Director roles he has a broad knowledge of the digital marketing process. He is also a Partner and Principal Trader at D&D Investments, a financial investment company.
At OnePortal, Dave is COO overseeing Client Partnerships, Engineering,  Account Management, AdOps, Marketing and develops the tailored campaign strategy for clients. Outside of work he is deeply involved in the San Francisco music and art scene, as well as, nonprofit work helping inner-city youth around the Bay Area.

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