69 Best Adtech Startups in United States to Watch in 2025

The Definitive Seedtable Ranking of Adtech Startups in United States

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 584 start-ups with an aggregate funding of $7.5b. The average funding per company in this subset is $108.8m.

Last update to the database: Feb 18, 2025. See changelog.

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7

Funding Rounds

$124.0m

Money raised

Company providing user behavioral analytics for revenue optimization for websites and smartphone applications

Location:

Key people:

2

Funding Rounds

$16.7m

Money raised

About.me is a company that has developed a platform for users to make personal and professional websites.

2

Funding Rounds

$12.2m

Money raised

Haptik is a company developing conversational AI for customer experience.

Key people:

4

Funding Rounds

$42.5m

Money raised

Vungle (Vungle, Inc.) is startup which powers video advertisements inside of mobile apps and games.

4

Funding Rounds

$4.4m

Money raised

App Samurai is a San Francisco-based company that provides mobile marketing technology.

7

Funding Rounds

$169.8m

Money raised

An artificial intelligence company offering a call tracking and conversational analytics for marketers.

6

Funding Rounds

$107.8m

Money raised

GumGum is a Santa Monica, California-based developer of computer vision and machine learning systems for contextually driven advertising and brand protection.

4

Funding Rounds

$18.5m

Money raised

TripleLift is an American multinational technology company developing a platform that enables scalability for native, branded content and OTT advertising.

Location:

Key people:

1

Funding Rounds

$3.0m

Money raised

Pathmatics provides AI-powered analytics software for marketers that can extract data about various channels, including social media, video, and display.

5

Funding Rounds

$373.0m

Money raised

Gupshup is an AI-powered messaging platform that integrates with communication software and protocols for commerce, marketing, and support applications.

3

Funding Rounds

$107.0m

Money raised

Drift is a software company offering a conversational marketing platform founded in 2015 by David Cancel.

6

Funding Rounds

$62.5m

Money raised

Avegant is California-based company developing display techologies for augmented reality experiences.

5

Funding Rounds

$33.9m

Money raised

A company building an identity resolution & insights platform

2

Funding Rounds

$82.0m

Money raised

Bionic is a company founded in 2019 by Idan Ninyo.

4

Funding Rounds

$130.0m

Money raised

SpinCar is a company founded in 2014 by Devin Daly, Steven Saporta and Michael Quigley.

10

Funding Rounds

$2.5b

Money raised

Tipalti automates the way companies pay suppliers, partners, publishers and employees with cloud-based solutions which addresses all phases of the payables workflow.

Key people:

4

Funding Rounds

$20.6m

Money raised

A media company providing a mobile advertising and client connecting platform.It was founded in 2007 and is located in Bangalore, India.

Key people:

5

Funding Rounds

$200.0m

Money raised

People.ai is an AI platform based on sales and marketing.

5

Funding Rounds

$40.4m

Money raised

Enervee is a company founded in 2010 by Hjalmar Branting, Iker Casillas, Aoife Ní Fhearraigh, Yhonastan Fabian, The Sxplay, Ujiie Naotomo, Robbie Grossman, Ingrid Gfölner, Moisey Uretsky, Don Epperson, Matt Service FBCS and Bhavesh M. Mehta.

5

Funding Rounds

$105.6m

Money raised

CleverTap is a software company offering a customer lifecycle and engagement platform as a mobile marketing suite.

2

Funding Rounds

$6.6m

Money raised

Virool is a company providing a programmatic video marketing platform.

7

Funding Rounds

$342.2m

Money raised

Iterable is a company founded in 2013 by Andrew Boni.

Key people:

8

Funding Rounds

$52.8m

Money raised

Remesh is an AI-based company to gather collective insights founded in 2013 by Aaron Slodov, Andrew Konya and Gary Ellis.

13

Funding Rounds

$846.9m

Money raised

MediaMath is a company developing and delivering digital advertising media and data management technology solutions.

Key people:

4

Funding Rounds

$8.6m

Money raised

Popular Pays is company providing a platform connecting brands with creators to produce custom content and generate awareness.

3

Funding Rounds

$34.0m

Money raised

AppOnboard is a company that is known for offering a no-code development platform, primarily for marketers.

4

Funding Rounds

$34.5m

Money raised

WideOrbit is a company that offers software for advertising management

Location:

Key people:

3

Funding Rounds

$16.6m

Money raised

A company with a digital audio online platform. It was founded in 2007 and has offices worldwide.

3

Funding Rounds

$73.0m

Money raised

Firefly is a mobility based advertising and data platform that allows rideshare drivers to make money through digital advertising.

2

Funding Rounds

$52.5m

Money raised

Developer of a real estate marketing platform to help real estate professionals to focus on lead management and collaborate effectively. The company's platform is for real estate professionals that are featuring MLS integration, high-resolution visuals, responsive design, mobile optimization, lead management tools, and marketing automation software for email, social media, and other channels, enabling clients to grow their businesses online.

5

Funding Rounds

$3.9m

Money raised

Rockbot is a company that has designed media streaming platform

5

Funding Rounds

$18.5m

Money raised

Snaps is an artificial Intelligence company founded in 2015 by Vivian Rosenthal.

2

Funding Rounds

$15.0m

Money raised

AdRoll is a software development company and marketing platform. The company is a division of NextRoll Inc. and is headquartered in San Francisco.

3

Funding Rounds

$1.5m

Money raised

MixRank is a company providing lead generation service for businesses. It utilizes LiveScan Contacts Engine together with mobile and web intelligence for lead generation automation.

1

Funding Rounds

$12.0m

Money raised

Tealeaf was a data analytics business. It was acquired by IBM, then later sold as part of IBM Marketing to Centerbridge Partners as Acoustic Experience Analytics.

5

Funding Rounds

$134.2m

Money raised

Videology is a New York City-based company founded in 2007.

2

Funding Rounds

$17.0m

Money raised

A business intelligence company offering a platform made to help companies analyze customer information to lower fraud and increase sales.

6

Funding Rounds

$9.0m

Money raised

Zemanta develops enterprise software for native advertising

Key people:

3

Funding Rounds

$6.4m

Money raised

AdStage is a company founded in 2012 by Sahil Jain.

3

Funding Rounds

$90.0m

Money raised

HUMAN is a cybersecurity company that protects enterprises from bot attacks to keep digital experiences human.

Key people:

3

Funding Rounds

$39.3m

Money raised

Unbounce provides a landing page building platform for businesses.

4

Funding Rounds

$18.0m

Money raised

American global mobile rtb ad exchange and supply side platform

5

Funding Rounds

$29.1m

Money raised

Technorati is a San Francisco-based advertising company founded in 2002.

Industries:

Location:

12

Funding Rounds

$129.4m

Money raised

RichRelevance, now Algonomy, is an Experience Personalization company.

Location:

Key people:

1

Funding Rounds

$800.0k

Money raised

Launchrock provides a platform for the creation of landing pages with built-in sharing tools and analytics.

9

Funding Rounds

$104.3m

Money raised

Phunware is an Austin, Texas-based company founded in 2009 by Alan Knitowski, Luan Dang and Alan Kane.

2

Funding Rounds

$17.0m

Money raised

Vibrant Media is a company founded in 2000 by Douglas Stevenson.

2

Funding Rounds

$4.5m

Money raised

Monetizr is a blockchain company founded by Martins Bratuskins.

Location:

Key people:

5

Funding Rounds

$26.0m

Money raised

Sharethrough is a company founded in 2008 by Matty Mo, Brett Keintz, Robert Fan and Dan Greenberg.

2

Funding Rounds

$14.0m

Money raised

MobileWorks is a company offering a crowdsourcing platform. It participated in the S11 cohort of Y Combinator

4

Funding Rounds

$46.0m

Money raised

BrightRoll is an american global digital video advertising company founded in 2006 by Tod Sacerdoti, Dru Nelson and Saar Gur.

3

Funding Rounds

$55.8m

Money raised

TrialPay is a Mountain View, California-based company founded in 2006.

8

Funding Rounds

$36.1m

Money raised

Boost Media is a San Francisco-based company using crowdsourcing and market testing to help businesses find effective words and images for marketing campaigns.

Key people:

1

Funding Rounds

$3.7m

Money raised

A company offering a digital credential platform.

3

Funding Rounds

$23.5m

Money raised

ViralGains is a company founded in 2012 by Jay Singh, Dan Levin, Kate Willett and Doron Gan.

3

Funding Rounds

$47.5m

Money raised

Metadata is a company founded by Gil Allouche.

Key people:

1

Funding Rounds

$10.0m

Money raised

Magnetic is an artificial intelligence company that uses machine learning to deliver smarter, faster, and more effective advertising.

3

Funding Rounds

$16.6m

Money raised

Instapage provides a landing page building platform for businesses.

Key people:

2

Funding Rounds

$21.0m

Money raised

Chartboost is a mobile games-only ad platform founded in 2011 by Maria Alegre.

Location:

Key people:

5

Funding Rounds

$72.4m

Money raised

Tapjoy is a mobile advertising company

4

Funding Rounds

$273.1m

Money raised

Appsflyer is a saas mobile marketing analytics and attribution platform, based out of herzliya, israel, with offices around the world.

Location:

Key people:

3

Funding Rounds

$16.7m

Money raised

Fiksu is a company founded by Micah Adler.

Location:

Key people:

2

Funding Rounds

$8.5m

Money raised

Efficient Frontier is an advertising company founded by Anand Ranganathan.

Key people:

3

Funding Rounds

$360.0m

Money raised

ActiveCampaign provides a platform with email marketing, marketing automation, and CRM tools for small-to-mid-sized businesses.

Location:

Key people:

3

Funding Rounds

$116.0m

Money raised

Shift is an online, peer-to-peer, marketplace for buying and selling used cars.

1

Funding Rounds

$17.0m

Money raised

Host Analytics is a Redwood City, California-based company founded in 2000.

4

Funding Rounds

$64.0m

Money raised

A company offering a compliance platform for marketing cannabis products.

1

Funding Rounds

$5.9m

Money raised

Dstillery is a company founded in 2008.

1

Funding Rounds

Perch Interactive is a New York-based company founded in 2012 by Trevor Sumner.

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