AdTech · United States, India

Best AdTech Companies in United States

Updated 2026-06-16 · Ranked by funding & momentum

2368 indexable AdTech companies headquartered in United States, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $18.1B across 765 funded companies, including 10 unicorns.

2,368
Companies
$18.1B
Total Funding
765
Funded
10
Unicorns
1
Rounds (90d)

Ranked: Best AdTech companies in United States

#CompanyFundingValuationStage Latest roundEmployeesFoundedMomentum
1 Unacast
Provider of data management platform for forecasting locations
$40.1M Series C Series C Dec 2025 20 2015 ↑ Active
2 Topsort
Provider of an AI-powered platform for retailers to manage advertising businesses
$43.2M $110M
as of 2022
Series A Series A Nov 2025 45 2021 ↑ Active
3 Vidmob
Cloud based creative marketing and advertising platform
$210M Series D Series D Apr 2025 200 2015 ↑ Active
4 KERV
AI-based performance analytics solutions for e-commerce brands
$30M Series B Series B Nov 2025 109 2017 ↑ Active
5 Mega
Provider of AI-powered SEO and paid advertising agents for startups and SMBs
$11.5M Series A Series A Mar 2026 2024 ↑ Active
6 Super League
Provider of networks of games, monetization tools and content channels
$34.6M Public Post IPO Oct 2025 101 2014 ↑ Active
7 AdFin
Automating payment collection end-to-end, streamlining accounts receivable for businesses
$4.1M Series A Series A May 2026 11 2012 ↑ Active
8 Sift Media
AI & machine learning-based mobile advertising platform
$5.7M Series A Series A Mar 2026 5 2015 ↑ Active
9 Kard
Network of commerce media providing transaction-based, personalized offers and performance marketing
$23M Series A Series A Oct 2025 8 2015 ↑ Active
10 MAI
Provider of AI-driven platform for Google Ads campaign management
$25M Seed Seed Oct 2025 2024 ↑ Active
11 Veritonic
Platform offering audio creative management software
$14.3M Series A Series A Sep 2025 43 2015 ↑ Active
12 Rembrand
Provider of AI-powered advertising solutions for in-content and social media
$8M Series B Series B Nov 2025 23 2022 ↑ Active
13 Smart Media Tech
Self-serve audience activation and real-time programmatic buying platform
$2.5M Seed Seed Mar 2026 148 2019 ↑ Active
14 AdPipe
AI based platform offering video ad creation software
$9M Series A Series A Sep 2025 18 2021 ↑ Active
15 Mobiquity Technologies
Provider of programmatic marketing technology, data, and trade desk services
$42.7M Public Post IPO Feb 2025 14 1998 ↑ Active
16 ABCS Insights
Cloud-based ad attribution analytics solutions provider
$50M Series C Series C Feb 2025 17 2020 ↑ Active
17 Agentio
Provider of a platform for managing and scaling creator advertising campaigns
$4.2M Series B Series B Oct 2025 2006 ↑ Active
18 Firsthand
AI based agent platform for brands and publishers
$32.6M Series A Series A Mar 2025 2023 ↑ Active
19 Kontext
Provides an AI-powered contextual advertising platform
$10M Seed Seed Aug 2025 2024 ↑ Active
20 Storygize
Integrated ad solutions for better programmatic performance through creative, tech, insights
$15.2M Series A Series A Mar 2025 20 2015 ↑ Active
21 Vaudit
Provider of AI-powered digital advertising audit and charge removal platform
$8.6M Seed Seed Jul 2025 2024 ↑ Active
22 StreamLayer
Video content management and monetization solutions provider
$12.8M Series A Series A May 2025 20 2018 ↑ Active
23 NYiax
Platform offering ad exchange software
$24.1M Acquired Seed Jan 2025 19 2016 ↑ Active
24 GoWit
Provider of a platform for retail media advertising and monetization
$2.3M Seed Seed Nov 2025 23 2019 ↑ Active
25 Quantcast
AI powered data management platform
$61.7M Acquired Conventional Debt Jul 2024 366 2006 ↑ Active
26 Admiral
Platform offering ad block analytics software
$40.7M Series B Series B Aug 2024 31 2015 ↑ Active
27 Quickads
AI based platform offering Ad generator solutions for enterprises
$1.7M Seed Seed Nov 2025 2023 ↑ Active
28 Brandzooka
Video advertising for small advertisers
$10.1M Series A Series A Dec 2024 27 2015 ↑ Active
29 Massive Dynamic
Provider of an AI copilot platform for cross-channel advertising management
$3.5M Seed Seed Jul 2025 2014 ↑ Active
30 Liftoff
ML powered mobile ad campaign management platform
$5M Acquired Series A May 2025 450 2012 ↑ Active
31 Automated Amazon PPC That Actually Works
Provider of Amazon Ads management using quantitative analysis and industry experience
$500K Seed Seed Jan 2026 2026 ↑ Active
32 Pixis
Provider of an AI-powered platform for advertising campaign optimization and creative generation
$209M Series C Series C Sep 2023 25 2018
33 True Sync Media
Interactive and shoppable video advertising platform
$1.7M Seed Seed Jun 2025 6 2013 ↑ Active
34 The Arena Group
Platform offering ad network software
$87.7M Public Post IPO Feb 2024 354 2011
35 MadHive Unicorn
Provider of technology for local connected television advertising and media sales
$307M $1B
as of 2023
Series D Series D Jun 2023 200 2015
36 Branch Unicorn
Cloud based marketing optimization platform for deep linking
$667.1M $4B
as of 2022
Series F Series F Feb 2022 100 2014
37 PilotDesk
AI-driven workflow automation platform for advertisers
$3.2M Series A Series A Apr 2025 2023 ↑ Active
38 Extreme Reach
Digital video advertising distribution
$195.6M Acquired Series E Jun 2023 709 2008
39 OpenWeb Unicorn
Provider of cross device ad network
$393M $1.5B
as of 2022
Series F Series F Oct 2022 330 2012
40 Influ2
Account based advertisement platform for advertisers
$11.6M Series A Series A Aug 2024 3 2017 ↑ Active
41 Reveal Mobile
Platform offering location-based audience data management solution
$10.1M Series A Series A Jun 2024 34 2015 ↑ Active
42 Aarki
Provides a platform for both creative optimization and programmatic media buying
$5M Acquired Series A Dec 2024 12 2010 ↑ Active
43 Connected-Stories
AI-powered platform for personalized content creation and delivery
$3.7M Seed Seed Jan 2025 42 2018 ↑ Active
44 Wunderkind
Adnetwork and performance marketing platform
$156.2M Acquired Series C Mar 2023 1,043 2010
45 Claybird
Developer of AI-powered platform creating studio-quality advertising content rapidly
$500K Seed Seed Sep 2025 2025 ↑ Active
46 Marko Polo
AI based customer data platform for customer insights
$1.5M Seed Seed May 2025 2 2021 ↑ Active
47 Kevel
Provider of content management and outdoor advertising services
$44.5M Series C Series C Mar 2024 69 2009
48 Verve
Provider of privacy first omni channel advertising platform
$263.1M Acquired Series E Apr 2022 91 2005
49 Taboola Unicorn
Provider of a platform for advertising and driving digital performance
$160M $2.6B
as of 2021
Public Post IPO Nov 2022 281 2007
50 Fluency
Platform for ad automation
$200K Series A Series A Dec 2025 37 2017 ↑ Active

Top 12 AdTech companies in United States

#1
Unacast Series C
$40.1M Raised
expand_more
#1

Unacast Series C

location_onNew York City, New York
Founded
2015
Employees
20
Funding raised
$40.1M
Stage
Series C

Provider of data management platform for forecasting locations. A leading proximity network, enabling global online media players to extract a higher value from advertisers and launch new innovative campaigns. Enables advertisers of Unacast's partners, reach and retarget customers in the online space based on the customer interaction with beacons in the physical space.

Funding rounds (5 disclosed of 5)
Round Date Amount
Series C Dec 2025 $28M
Series B Oct 2021 $16M
Series B Feb 2018 $17.5M
Series A May 2016 $5M
Seed Apr 2015 $1.6M
Tech stack
cdnjschili pipercloudflarecloudflare bot managementcontentsquarecore-js+14
#2
Topsort Series A
$43.2M Raised
expand_more
#2

Topsort Series A

location_onCambridge, Massachusetts
Founded
2021
Employees
45
Funding raised
$43.2M
Valuation
$110M · 2022
Stage
Series A

Provider of an AI-powered platform for retailers to manage advertising businesses. The platform enables retailers and marketplaces to launch, scale, and optimize ad businesses. It offers solutions for sponsored listings, display ads, video ads, and sponsored brands. The platform supports retailers, marketplaces, and delivery applications with advertising infrastructure.

Funding rounds (3 disclosed of 4)
Round Date Amount
Series A Nov 2025 Undisclosed
Series A Mar 2024 $20M
Series A Nov 2023 $14.8M
Seed Feb 2022 $8.3M
Tech stack
amazon s3amazon web servicesapache apisixapple icloud mailcloudflarecloudflare bot management+14
#3
Vidmob Series D
$210M Raised
expand_more
#3

Vidmob Series D

location_onNew York City, New York
Founded
2015
Employees
200
Funding raised
$210M
Stage
Series D

Cloud based creative marketing and advertising platform. It enables users to compare ads, provides mobile fitness scores, creative fatigue trackers, dashboards, reports, and more. It also provides tools for analyzing campaigns. It allows users to carry out creative production by matchmaking, collaboration tool, manage multiple accounts, and more.

Funding rounds (7 disclosed of 7)
Round Date Amount
Series D Apr 2025 $8M
Series D Aug 2022 $110M
Series C Feb 2021 $50M
Series B Jun 2019 $25.4M
Series A May 2018 $6.4M
Series A Jun 2017 $7.5M
1 earlier round — sign up free
Tech stack
amazon sesamazon web servicesanimate.cssapple icloud mailbootstrapcdnjs+14
#4
KERV Series B
$30M Raised
expand_more
#4

KERV Series B

location_onAustin, Texas
Founded
2017
Employees
109
Funding raised
$30M
Stage
Series B

AI-based performance analytics solutions for e-commerce brands. Its solutions include add performance solutions, publisher revenue opportunities, and in-show monitization solutions.

Funding rounds (5 disclosed of 5)
Round Date Amount
Series B Nov 2025 $17.5M
Series B Sep 2022 $6.6M
Series A May 2022 $4.5M
Conventional Debt May 2022 $7.5M
Series A Apr 2019 $11M
Founders & key people
Tech stack
apple icloud mailbootstrapbootstrap iconscloudflarecloudflare bot managementcontact form 7+14
#5
Mega Series A
$11.5M Raised
expand_more
#5

Mega Series A

location_onSeattle, Washington
Founded
2024
Funding raised
$11.5M
Stage
Series A

Provider of AI-powered SEO and paid advertising agents for startups and SMBs. These agents autonomously research, analyze, execute, and improve marketing campaigns. Human oversight is provided for complex tasks, ensuring accuracy and strategic direction. The platform offers a simple dashboard to track agent activity, approve tasks, and monitor key performance indicators. Integration with various data sources allows f

Funding rounds (1 disclosed of 1)
Round Date Amount
Series A Mar 2026 $11.5M
Tech stack
clickbankcloudflarecloudflare bot managementcore-jsfacebook pixelframer sites+14
#6
Super League Public
$34.6M Raised
expand_more
#6

Super League Public

location_onSanta Monica, California
Founded
2014
Employees
101
Funding raised
$34.6M
Stage
Public

Provider of networks of games, monetization tools and content channels. The company owns and operates game worlds and provides a launchpad for brands and creators to accelerate success in the gaming metaverse.

Funding rounds (15 disclosed of 15)
Round Date Amount
Post IPO Oct 2025 $20M
Post IPO Jul 2025 $4.5M
Post IPO Sep 2024 $1.1M
Post IPO Jun 2024 $1.8M
Post IPO Nov 2023 $8.4M
Post IPO Apr 2023 $11.8M
9 earlier rounds — sign up free
Founders & key people
Tech stack
apple icloud mailbootstrapcloudflaredocusigngoogle cloudgoogle cloud cdn+14
#7
AdFin Series A
$4.1M Raised
expand_more
#7

AdFin Series A

location_onNew York City, New York
Founded
2012
Employees
11
Funding raised
$4.1M
Stage
Series A

Automating payment collection end-to-end, streamlining accounts receivable for businesses. It is a platform designed to automate finance, offering solutions for accountants, businesses, and platforms. The company provides tools to generate invoices, accept payments, and manage credit control, all in one place. It offers next-generation direct debit and automates chasing with its Autopilot feature. The platform integr

Funding rounds (2 disclosed of 2)
Round Date Amount
Series A May 2026 $18M
Series A Jul 2024 $4.9M
Founders & key people
Tech stack
amazon web servicescloudflarecloudflare bot managementcore-jsfacebook pixelgoogle analytics+12
#8
Sift Media Series A
$5.7M Raised
expand_more
#8

Sift Media Series A

location_onDurham, North Carolina
Founded
2015
Employees
5
Funding raised
$5.7M
Stage
Series A

Sift Media is an AI & machine learning-based mobile advertising platform to hyper-target app install ads. It operates at the intersection of mobile and big data. It focuses on analyzing the connections and links between apps. The platform monitors conversion rates in real-time for each campaign and algorithm and automatically optimizes campaigns across inventory sources to improve conversion rate.

Funding rounds (4 disclosed of 4)
Round Date Amount
Series A Mar 2026 $225.8K
Conventional Debt Jun 2020 $1.8M
Series A Feb 2020 $1.5M
Series A Jan 2016 $4.2M
Tech stack
amazon web servicesangularaxioscore-jsgoogle analyticsgoogle font api+12
#9
Kard Series A
$23M Raised
expand_more
#9

Kard Series A

location_onNew York City, New York
Founded
2015
Employees
8
Funding raised
$23M
Stage
Series A

Network of commerce media providing transaction-based, personalized offers and performance marketing. It uses transaction data to provide offers to customers. The network enables marketers to target customers with offers. It allows financial institutions to design loyalty programs. The platform tracks transactions and links them to offers. It measures incrementality and return on ad spend, and allows for A/B testing.

Funding rounds (3 disclosed of 4)
Round Date Amount
Series A Oct 2025 $15M
Series A Apr 2022 $23M
Seed 2020 Undisclosed
Seed Feb 2017 $20K
Tech stack
amazon sesamazon web servicescloudflarecloudflare bot managementdocusigngoogle analytics+14
#10
MAI Seed
$25M Raised
expand_more
#10

MAI Seed

location_onWilmington, Delaware
Founded
2024
Funding raised
$25M
Stage
Seed

Provider of AI-driven platform for Google Ads campaign management. The platform integrates advertising, ecommerce, CRM, and analytics data to identify growth opportunities. It uses AI agents to autonomously optimize advertising spending. The platform analyzes data to understand performance trends and suggest actions. Reporting focuses on key metrics, providing insights into data changes.

Funding rounds (1 disclosed of 1)
Round Date Amount
Seed Oct 2025 $25M
Founders & key people
Tech stack
amplitudeastrocloudflarecloudflare bot managementcore-jsfacebook pixel+14
#11
Veritonic Series A
$14.3M Raised
expand_more
#11

Veritonic Series A

location_onNew Haven, Connecticut
Founded
2015
Employees
43
Funding raised
$14.3M
Stage
Series A

Platform offering audio creative management software. It helps to measure their audio creative to determine how the audience responds to it. It helps to determine the audio creative that works best from pre market to post campaign. The platform helps to understand the campaign performance. The platform combines proprietary marketing response data with predictive algorithms and a unique demographic search engine to gi

Funding rounds (5 disclosed of 7)
Round Date Amount
Series A Sep 2025 Undisclosed
Series A Jun 2025 $2.8M
Series A Jun 2022 $7.5M
Series A Oct 2020 $3.2M
Seed Jul 2018 $3.5M
Seed Apr 2017 $100K
1 earlier round — sign up free
#12
Rembrand Series B
$8M Raised
expand_more
#12

Rembrand Series B

location_onPalo Alto, California
Founded
2022
Employees
23
Funding raised
$8M
Stage
Series B

Provider of AI-powered advertising solutions for in-content and social media. The company offers tools for advertisers and publishers to integrate brand messaging within digital content. It transforms social media content into advertisements and places virtual product placements within relevant scenes. The company aims to deliver advertising experiences that are more natural for viewers.

Funding rounds (3 disclosed of 3)
Round Date Amount
Series B Nov 2025 $37.5M
Series A Jan 2025 $23M
Seed Dec 2022 $8M

Recent signals in United States AdTech

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Funding & investor landscape

Total raised
$18.1B
across these companies
Companies funded
765
with disclosed funding
Highest-funded
$667.1M raised

Most active investors

5G 500 Global 27 investments in AdTech T Techstars 27 investments in AdTech WI Western Technology Investment 27 investments in AdTech FC First Round Capital 26 investments in AdTech RM Right Side Capital Management 21 investments in AdTech YC Y Combinator 21 investments in AdTech S SVB 19 investments in AdTech TC TriplePoint Capital 16 investments in AdTech A AperiamVentures 15 investments in AdTech PC Plug and Play Tech Center 14 investments in AdTech WP Wavemaker Partners 14 investments in AdTech FC Founder Collective 13 investments in AdTech

Notable founders in United States AdTech

JW Jeff White Co-Founder & CEO Unacast · $40.1M raised
FL Francisco Larraín Co-Founder & CTO Topsort · $43.2M raised
MO Michael Ostrovsky Co-Founder Topsort · $43.2M raised
RY Regina Ye Co-Founder & CEO Topsort · $43.2M raised
AC Alex Collmer Co-Founnder & CEO Vidmob · $210M raised
MH Md Hussain Co-Founnder & CEO Vidmob · $210M raised
CC Craig Coblenz Co-Founder Vidmob · $210M raised
GM Gary Mittman CEO KERV · $30M raised
LP Lucas Pellan Co-Founder Mega · $11.5M raised
JA Joe Adams Co-Founder Mega · $11.5M raised
JM John Miller Co-Founder Super League · $34.6M raised
TP Tom Pope Co-Founder & CEO AdFin · $4.1M raised

Frequently asked questions

How many AdTech companies are there in United States?
Radar tracks 2368 indexable AdTech companies headquartered in United States, India, that meet our profile-completeness bar.
What is the total funding raised by AdTech companies in United States?
The AdTech companies in United States on this list have raised a combined $18.1B in disclosed equity funding across 765 funded companies.
Which is the highest-funded AdTech company in United States?
Branch is the highest-funded AdTech company in United States, with $667.1M in disclosed equity funding.
How many AdTech companies in United States are funded?
765 of the 2368 AdTech companies in United States on this list have disclosed at least one equity funding round.
How many AdTech unicorns are there in United States?
10 AdTech companies in United States on this list are valued at $1B or more.
Who are the top investors in United States AdTech companies?
The most active investors in United States AdTech companies on this list include 500 Global, Techstars, Western Technology Investment, First Round Capital, Right Side Capital Management.

Rankings are computed by Radar (Fliar BI) from the Radar company master and are updated periodically. Funding and momentum scores use disclosed equity-funding data only. Figures may lag private rounds. Last updated 2026-06-16.

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