Check
Open Positions
About Us

We Believe Advertising Works Best When it Understands Mindset

GumGum is The Mindset Company™. We built our technology around a simple belief: the best moment to reach someone isn't determined by who they are. It's determined by what they're open to right now. That's mindset, and it's what we've been building toward since 2008.

PRESENCE

Markets Worldwide

19+
People

Employees Worldwide

450+
Trust

Brands Worldwide

3,000+
Scale

Monthly Global Uniques

~1b
Our Mission

Advertising works best when it reaches people at the moment they're most receptive.

We call that mindset.


GumGum has spent over 15 years building the technology to make that possible at scale.

Our Vision

Transform Advertising Through Mindset

An industry built around audience data has optimized for reach. We're building toward something different. A future where receptivity is the standard, and every impression is placed in a moment of genuine openness.

Our Story

Built With A Single Direction

From contextual intelligence to attention measurement to real-world outcomes, every capability GumGum has built has been deliberate. That progression gives us a meaningful advantage in understanding how signals combine to drive action.

2008

GumGum Founded

Launched in Santa Monica, pioneering in-image advertising powered by proprietary computer vision technology.
2010

Proprietary Contextual Technology

Built our own contextual intelligence engine, analysing content across text, image, and video well beyond keyword matching.
2020

Advanced Contextual Intelligence

Expanded our AI-driven content analysis to deeper page-level and video environments, setting a new bar for contextual precision.
2022

Playground xyz Acquired

Brought attention measurement in-house, adding a critical new signal layer to our understanding of how ads actually land.
2024

The Mindset Graph™ Introduced

Launched our AI-powered data engine, processing billions of real-time signals to identify the moments of peak receptivity.
2025

The Mindset Graph™ Portal Goes Live

Gave clients direct access to mindset data and insights through a dedicated portal.
2025

GumGum Outcomes Launched

Connected media exposure to real-world actions, proving that mindset drives measurable business results.
2025

Seasonal Moments and Events

Extended the Mindset Graph™ to capture seasonal consumer mindset shifts, enabling brands to show up at culturally relevant moments.
Our Culture

How We Show Up Every Day

Customer Obsessed

We focus on solutions that solve real needs and drive success for our clients and partners.

Make It Happen

We have a bias for action and take ownership to deliver results.

Always Innovate

We push boundaries with creativity and technology.

Foster Belonging

We ensure our colleagues feel included, supported, and empowered to thrive.

The Team Behind The Mindset Company™

Portrait of the person

Marcus Startzel

Chief Executive Officer
About  
Marcus Startzel

Marcus Startzel is the Chief Executive Officer of GumGum, responsible for driving our growth through the adoption of the Mindset Graph, core display, video, and CTV, while instilling a customer-obsessed approach. Marcus is focused on continuing the company’s mission to empower advertisers to achieve better outcomes through understanding consumer mindsets.

Marcus is a three-time CEO with a successful background in scaling companies to $1B+ revenue. Before GumGum, Marcus held senior leadership roles at Amazon, WBX Commerce, AppNexus, Millennial Media, and AOL/Advertising.com. He is a former U.S. Naval Submarine Officer and qualified Nuclear Engineer.

He graduated with a B.S. degree in Mathematics from the United States Naval Academy with Merit, and lives in Maryland.

Portrait of the person

Katy Loria

Chief Revenue Officer
About  
Katy Loria

Katy Loria is a seasoned leader in media and ad tech, with over 20 years of experience building high-impact revenue and operational organizations grounded in client partnerships and team empowerment. At GumGum, she leads the global revenue organization to help advertisers drive better outcomes by aligning with the mindset and intent of their audiences.

Previously, as Chief Revenue Officer at FreeWheel, a Comcast Company, she led the team that scaled revenue beyond $1 billion. Prior to that, Katy served as Chief Revenue Officer at Screenvision Media and held senior roles at Paramount, where she developed integrated go-to-market strategies, deepened brand partnerships, and delivered multi-platform solutions across linear, digital, out-of-home, CTV, and programmatic environments.

Katy holds degrees from Indiana University and the University of Georgia. She is a recognized mentor and advocate for advancing women in leadership, serving on several industry boards and as a member of CHIEF, She Runs It, and the Alliance for Women in Media.

She lives in New York with her husband, college-aged twins, and more pets than anyone fully agreed to.

Portrait of the person

Ken Weiner

Chief Technology Officer
About  
Ken Weiner

Ken Weiner leads the engineering and product teams behind the industry’s top contextual platform for marketers and rights holders. An active member of the ad tech community, he holds an IAB Tech Lab board seat, is a member of the OpenRTB Working Group, and leads the LA AdTech Meetup for regional tech engineers and product managers. Weiner is also a frequent conference speaker and guest columnist for VentureBeat and Forbes. In 2015, he was named LA Business Journal’s CTO of the Year, and, in 2003, he was included in the InfoWorld 100 for his work on uPortal, an open-source web portal framework for the higher education community.

Before coming to GumGum, Weiner was the Director of Engineering at the lead-generation platform LowerMyBills.com, acquired by Experian in 2005. He has also worked as an open-source software consultant, a project manager and an instructor at Interactive Business Solutions, acquired by Unicon Inc. in 2003. Weiner received a B.S. from UCLA and currently lives in Los Angeles. Away from the office, he enjoys mountain biking, hiking, California native plants, jazz music and playing the saxophone.

Portrait of the person

Adam Schenkel

Chief Operating Officer
About  
Adam Schenkel

Adam Schenkel is the Chief Operating Officer (COO) of GumGum, where he oversees the company’s global operations and is responsible for driving organizational excellence, operational scalability, and cross-functional alignment in partnership with the CEO and executive leadership team. In his role, Adam leads Media Operations; DSP partnerships; Publisher Development; Creative Design; Ad Operations; Account Management; global strategic initiatives; and GumGum’s approach to Open Market trading and Supply Path Optimization. As COO, he also helps shape and execute company strategy, guiding operational frameworks that support GumGum’s long-term growth.

Previously, Adam served as EVP, Global Platform Strategy and Operations, where he led key pillars of GumGum’s platform evolution and marketplace strategy. Before that, as Senior Vice President of Global Commercial Development, he oversaw programmatic advertising, international markets, and business development. During this time, Adam also drove GumGum’s successful effort to secure MRC accreditation for both Brand Safety and Contextual Targeting, cementing the company’s leadership in contextual intelligence.

Since joining GumGum in 2013, Adam has been instrumental in shaping the company’s programmatic capabilities, founding its Programmatic Department and launching the industry’s first custom in-image programmatic offering to be transacted at scale in real time. He has also been an active contributor to industry standards as a member of the IAB Programmatic Council since 2014.

Prior to GumGum, Adam worked in reality television as well as celebrity licensing and endorsement at United Talent Agency. He holds a degree from Arizona State University’s W. P. Carey School of Business and currently resides in Calabasas, California. An avid sports fan, Adam enjoys playing golf and traveling when he is not working.

Portrait of the person

Patrick Gildea

Chief Financial Officer
About  
Patrick Gildea

Patrick Gildea is the Chief Financial Officer for GumGum, leading the finance, accounting and legal departments. Patrick’s hands-on leadership style has allowed him to build high-performing teams to support scalable operations aligned with the vision of the business. Over the past decade, Patrick has led finance, HR, legal, strategy, corporate and business development departments that span from the start-up phase to high-growth global public companies with multiple successful strategic exits.

Prior to GumGum, Patrick help lead Joybird.com to a successful exit with La-Z-boy, served as the CFO of Gracenote, where he was instrumental in both its growth to a $250 million business that operated 5 divisions with more than 2,000 employees in 20 offices around the globe and in its sale to Nielsen Media in 2017. Patrick also served as the first CFO of M-GO, scaling the business and ultimately selling it to NBCUniversal to become FandangoNow.com.

Earlier in his career, Patrick was the Group Vice President of Corporate Strategy and Development at Blackhawk Network (NASDAQ:HAWK), ran corporate development at IC Media, where he helped raise three rounds of venture capital and sold the business to Citibank Private Equity. Patrick began his career as a CPA at Arthur Andersen, after graduating with a degree in Japanese from Sophia University and a B.S. in Accounting from the University of Southern California.

Portrait of the person

Kelly Battelle

Chief People Officer
About  
Kelly Battelle

As Head of People Operations, Kelly Battelle is responsible for hiring, developing and engaging the industry’s best talent and for creating a positive, collaborative work environment where GumGum’s thinkers and doers can thrive. With more than 20 years of human resources experience, Battelle is a highly skilled communicator who takes pride in her ability to develop cross-departmental strategies that push our business forward and keep our team members engaged and thriving.

Battelle comes to GumGum from media giant The Walt Disney Company, where she served in the capacity of HR Business Partner. Throughout her career, she has served in a variety of other HR management and leadership capacities at a variety of small- and mid-sized technology and digital companies, including Razorfish and RealNetworks. She is an advisor on the People Tech Partners LA Chapter and holds a BA in Sociology from Washington State University and a Certificate in Coaching from The Coach Institute. When she’s not making GumGum a great place to work, she enjoys spending time at her family cabin in Big Bear with her husband, Tony, her daughters, Emily and Elise, and her kitty, Riley.

Portrait of the person

Grace Chang

SVP, Finance
About  
Grace Chang

Grace Chang is the SVP, Finance for the global GumGum organization.  She leads enterprise Financial Planning and helps the company manage profitability and investment.  She also supports the CFO and Executive Leadership team by providing strategic financial guidance in all commercial areas.

Grace is a seasoned finance professional with extensive experience in the technology and entertainment industries.  Prior to GumGum, she held roles with Activision Blizzard, NBC Universal (Fandango), and The Walt Disney Company.

Grace received her undergraduate & masters degrees from The University of Texas at Austin.  She currently lives in Los Angeles, with her husband and 2 children.  When she isn't working, she loves staying active with her family and attending concerts and music festivals around the world.

Portrait of the person

Laura Foster

SVP, Global Marketing
About  
Laura Foster

Laura Foster is SVP of Global Marketing at GumGum, where she leads the team responsible for telling the story of mindset-based advertising to the world. Her job: make sure GumGum’s message is as sharp on the outside as the thinking is on the inside.

Before GumGum, Laura spent nearly a decade at Innovid, rising to VP of Product Marketing and leading the team through multiple acquisitions, a successful IPO, and some of the most consequential shifts in the TV advertising landscape. Earlier in her career, she held sales and strategic roles at Sizmek, building her foundation in ad tech up and down the West Coast.

Laura has been recognized as a Business Insider Rising Star of Adtech, a Chief Marketer Top Women in Marketing “One to Watch,” a member of LA TV Week’s 40 Under 40, and a Product Marketing Alliance Top 100 Influencer. She lives in Toluca Lake with her husband, daughter, and very spoiled goldendoodle.

Portrait of the person

Hailey Denenberg

SVP of Strategy & Business Operations
About  
Hailey Denenberg

Hailey Denenberg is SVP of Strategy & Business Operations at GumGum, where she leads global strategy, go-to-market execution, and business operations across the company’s media and data portfolio. During her tenure, she has helped shape GumGum’s strategic direction and differentiation through its unique Mindset approach, incubated and scaled new revenue streams—including launching the company’s contextual data business, and driven operational excellence across regions.

Prior to GumGum, Hailey was a Management Consultant at Deloitte, where she advised leading media and technology companies on ad tech strategy, operating model transformation, digital video go-to-market strategy, and large-scale modernization initiatives.

She holds an MBA from Columbia Business School and a B.A. from UCLA. She lives in coastal Los Angeles and outside of the office is an avid tennis player, hiker, and pastry chef.

Portrait of the person

Rasmus van der Colff

Principal Accounting Officer
About  
Rasmus van der Colff

Rasmus van der Colff is the Principal Accounting Officer for GumGum and is responsible for the leadership, development and execution of the company’s global accounting function, including controllership, income tax, financial reporting and treasury operations.

Rasmus has extensive experience in the technology and entertainment industries at companies ranging from start-ups to global, publicly traded entities. Throughout his career, he has served in multiple accounting and finance leadership positions at PSI Services, Canoo, Guidance Software, THQ and Activision. His experience includes mergers and acquisitions, divestitures, capital raising and an initial public offering.

Rasmus is an inactive CPA and began his career in public accounting at KPMG in South Africa after graduating with a degree in Accounting from the University of Pretoria and an Honors degree in Accounting from the University of South Africa.

Portrait of the person

Pete Wallace

General Manager, EMEA & JAPAC
About  
Pete Wallace

Peter has been at the forefront of shifting trends in the digital media industry for over 15 years: he led a team of digital specialists at behavioural planning agency Total Media and quadrupled revenue at audience data platform Eyeota before entering the brave new world of contextual advertising at GumGum five years ago. During that time, he has seen the business grow exponentially through both organic growth and acquisitions to now being the global leader in the space.

Portrait of the person

Allison Gietl

SVP, Sales East Coast, NA
About  
Allison Gietl

Allison Gietl is Senior Vice President of Sales for US East Coast and Canada. She is responsible for driving revenue through developing sales strategy, establishing and managing senior level client relationships and enhancing cross functional collaboration and partnerships. She guides her teams in identifying and securing new clients, encouraging their professional development while creating procedures and guidelines to ensure continual regional and national growth.

Joining GumGum 10 years ago as an individual contributor, she brought her unique background and experience in the social space working with BlogHer, one of the largest blogging communities for women during a crucial period of evolution.

Portrait of the person

Gina Smart

SVP, Sales - West & Midwest, NA
About  
Gina Smart

Gina Smart currently serves Senior Vice President of Sales at GumGum, responsible for the strategic vision and omni-channel revenue growth for the US West Coast region.

Gina joined GumGum in 2013, utilizing her background in digital and track record of successfully monetizing contextual alignments to solidify GumGum's West Coast presence, and set the trajectory for the exponential growth that’s been attained in the years since. With her extensive experience at the company, Gina brings a unique perspective to her leadership role, allowing her to effectively understand how big picture strategies will impact day-to-day operations, foster cross-functional collaboration, and drive positive outcomes and experiences for partner brands and agencies.

Portrait of the person

Matt Coote

Managing Director, Australia
About  
Matt Coote

Matt Coote is the Managing Director of GumGum Australia, leading the company’s growth in contextual intelligence and attention-based advertising. He oversees revenue growth, sales strategy, and agency partnerships, while representing GumGum at major industry events.

With over 15 years’ experience in media and technology, Matt has been at the forefront of much industry change - from driving the digital transformation of television at MCN to building Snap Inc’s Australian business from the ground up. His leadership is defined by a people-first approach, with a focus on building high-performing teams, commercial success and fostering strong client relationships.

An active supporter of industry initiatives, Matt works closely with UnLtd.. Based in Sydney, he balances his career with family life, cheering on the Geelong Cats and Canberra Raiders, and embracing the joys of fatherhood - even if that means the Frozen 2 soundtrack on repeat.

Portrait of the person

Kenzo Selby

Managing Director, Japan
About  
Kenzo Selby

Kenzo Selby is the Managing Director of GumGum Japan, focused on building the business in the land of the rising sun. One of his favorite challenges is adapting GumGum’s suite of technologies to meet the unique needs of the Japanese market.

He built a strong career in ad tech at Teads, helping to establish its presence in Japan and eventually serving as Head of Sales, where he led the company to become the market’s largest rich media player. Before that, Kenzo worked at AOL with BeOn, its video syndication and viral platform.

Earlier in his career, Kenzo qualified as an accountant, earning a Diploma from the Institute of Chartered Accountants, and worked at EY as well as Ferrier Hodgson (acquired by KPMG, then the leading turnaround consulting firm).

Outside of work, Kenzo is fiercely competitive in board games and enjoys participating in group sports, even if his stamina doesn’t always keep up.

Our Locations

GumGum is Global

Headquartered in Santa Monica, GumGum operates across 19+ markets in 
North America, Europe, Japan, and Australia.

US (HQ)

Los Angeles, New York, Chicago

Canada

Toronto

Mexico

Mexico City

United Kingdom

London

Germany

Hamburg

France

Paris

Netherlands

Amsterdam

Belgium

Brussels

Japan

Tokyo

Australia

Sydney, Melbourne, Brisbane

Markets Worldwide

19+

Global Employees

450+

Brands Worldwide

3,000+

MFA-Free Partner Sites

40,000+

Recognized By The Industry

2026

Best Places to Work
#87 Best U.S. Midsize Companies to Work For

2026 & 2025

Media Awards Europe
Best Contextual Targeting Offering

2025

AI Innovators
Technology & Service Provider

2025

Marketing Technology Awards
Power Partners

2023

Power Partners
B2B Power Partners

2025

The Wires Awards
Best Client Services Team

2025

Mixx Awards
Product Innovation

2025

Smarties DACH
Data Insights / Contextual Marketing
In The Press

GumGum In The Spotlight

See what global press and analysts are saying about the shift to mindset-driven advertising.

Get in Touch

Start the conversation

Whether you're a brand, an agency, or a potential partner, we'd love to talk.

Trusted by the world's leading companies

Let’s start with the basics.

A bit more context helps us tailor things.

Select your company type
Select a country

Last step – tell us what you’re looking for.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.