The 12 closest competitors and alternatives to GumGum among adtech companies — ranked by similarity to what GumGum actually does, not by market-cap band.
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GumGum is a global advertising technology company founded in 2008 and headquartered in Santa Monica, United States. The company operates in over 19 markets across North America, Europe, Japan, and Australia, focusing on identifying moments consumers are in the right mindset for advertising across CTV, OLV, and high-impact display.
GumGum is an adtech company headquartered in United States. Xcout tracks 11 named people at GumGum, including Marcus Startzel (Chief Executive Officer). Xcout recorded 29 job postings from GumGum in the last 90 days.
5 more named people on record for GumGum, with roles, board committees and tenure — see the full roster →
Xcout recorded 29 job postings from GumGum in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see GumGum's hiring signals →
Ranked by semantic similarity — how close each company is to GumGum by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Similar adtech company
Simulmedia, Inc. is a technology company headquartered in New York, United States. The company provides software and data-driven solutions for television advertising, audience targeting, and campaign measurement. It operates in the media and advertising technology sector.
Similar adtech company
Cardlytics, Inc. provides an advertising platform, operating in both the United States and the United Kingdom. Among its key offerings is the Cardlytics platform, a proprietary advertising channel integrated directly into banks' digital environments. This system allows marketers to engage customers through the vast networks of their financial institution partners, leveraging digital avenues such as online portals, mobile applications, email, and various real-time alerts. Furthermore, the company offers the Bridg platform, a comprehensive customer data solution that processes point-of-sale information. This enables marketers to conduct advanced analytics, implement highly targeted loyalty initiatives, and precisely evaluate the performance of their marketing efforts. Cardlytics, Inc. was founded in 2008 and is headquartered in Atlanta, Georgia.
Similar adtech company
Quantcast is an American technology company, founded in 2006, that specializes in advertising, audience insights and measurement. It has offices in the United States, Canada, Australia, Singapore, United Kingdom, Ireland, France, Germany, Italy, and Sweden.
Similar adtech company
InMarket provides a real-time marketing and measurement platform that helps brands connect with consumers across multiple channels and devices. The company offers audience targeting, media activation, campaign measurement, and consumer insights to drive real-world outcomes and optimize advertising spend.
Similar adtech company
Samba TV is a technology company that provides data and analytics for the television and video ecosystem. Founded in 2008, it is headquartered in San Francisco, California.
Similar adtech company
TripleLift is an advertising technology company that provides a supply-side platform (SSP) connecting data, creative formats, and media inventory for advertisers, publishers, and partners. The company offers data-driven ad solutions—including native, video, CTV, and retail media formats—designed to optimize campaign performance, reduce media waste, and measure real-world business outcomes.
Similar adtech company
Magnite operates an independent sell-side advertising platform that provides technology for media owners and publishers to monetize their content across various screens, including streaming, video, display, and audio. Additionally, the company offers tools for buyers and agencies to curate and access premium advertising inventory globally.
Similar adtech company
MGID is an innovative global pioneer in native advertising, established in 2005, that drives revenue growth for all participants in the advertising ecosystem. The company is headquartered in Santa Monica/Culver City, California, and has 18 offices worldwide.
Similar adtech company
MNTN, Inc. operates a technology platform that brings performance marketing to Connected TV. Its self-serve technology makes running TV ads as easy as search and social and helps brands to drive measurable conversions, revenue, site visits, and more. The company was formerly known as MNTN Digital, Inc. and changed its name to MNTN, Inc. in 2022. MNTN, Inc. was incorporated in 2009 and is headquartered in Austin, Texas.
Advertising Technology
Sharethrough Inc. is an advertising technology company founded in 2008 with a presence in the United States and Canada, which launched the Net Zero Publisher Program in February 2023.
Similar adtech company
PubMatic, Inc. operates a global cloud-based infrastructure designed to facilitate real-time programmatic advertising exchanges between online publishers and advertisers. Its comprehensive suite of solutions includes Openwrap, an enterprise-level header bidding tool with robust management and analytics capabilities, including specialized versions like Openwrap OTT for over-the-top media and Openwrap SDK for in-app developers. The company also provides private marketplace options and dedicated consoles for media buyers. Further extending its offerings, PubMatic provides Real-Time Bidding (RTB) technologies that support diverse selling strategies across multiple screens and advertising formats. It employs advanced digital advertising inventory quality solutions to identify and remove fraudulent traffic and malicious activities, alongside ad quality features aimed at minimizing security, quality, and performance concerns. The Identity Hub is a privacy-conscious identity management system, enabling advertisers to utilize their preferred user identifiers securely and at scale. Moreover, PubMatic offers Audience Encore, an audience data platform, and a cross-platform video Sell-Side Platform (SSP) that links reputable video buyers with high-quality publishers. The platform is versatile, accommodating a wide spectrum of advertising formats and digital devices, such as mobile applications, mobile web, desktop, display, video, and various connected TV environments including over-the-top (OTT) services. Established in 2006, PubMatic, Inc. is headquartered in Redwood City, California.
Similar adtech company
Extreme Reach, Inc. is an advertising technology and services company that manages, distributes, and measures video and television advertising creative across broadcast, streaming, digital, and connected-TV channels. It serves brands, advertising agencies, media companies, and other participants in the advertising ecosystem.
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