64 Best Online Advertising Startups to Watch in 2025

The Definitive Seedtable Ranking of Online Advertising Startups

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 5,769 start-ups with an aggregate funding of $56.8b. The average funding per company in this subset is $888.2m.

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

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2

Funding Rounds

$21.0m

Money raised

Ozon is a Russian e-commerce platform.

Industries:

Location:

Key people:

7

Funding Rounds

$60.6m

Money raised

READY Robotics is a company developing an industrial brand-agnostic operating system (Forge/OS) for industrial robots and automation.

6

Funding Rounds

$799.8m

Money raised

A bank offering online banking services with no user no bank fees, and an option to receive direct deposit up to two days early. Chris Britt and Ryan King founded Chime in 2013, and the company is headquartered in San Francisco, California.

1

Funding Rounds

$31.0m

Money raised

An online publishing platform used by amateur and professional writers. Membership fees are used to pay writers.

6

Funding Rounds

$1.7b

Money raised

Discord is an American company that offers users a free messenger with support for IP telephony and video conferencing. About 56 million people use the Discord messenger every month, and its total audience exceeds 270 million users.

Location:

Key people:

1

Funding Rounds

$50.0k

Money raised

Pembient uses advances in biotechnology to fabricate horn and other wildlife products to combat the threat to endangered species.

7

Funding Rounds

$124.0m

Money raised

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

Location:

Key people:

3

Funding Rounds

$900.0k

Money raised

Pitney Bowes is a Stamford, Connecticut-based company founded in 1920 by Walter Bowes.

9

Funding Rounds

$1.5b

Money raised

Faire is a curated boutique wholesale marketplace connecting local retailers with thousands of emerging and established brands.

Location:

Key people:

2

Funding Rounds

$103.5k

Money raised

Terminal Africa is the developer of a delivery aggregator platform designed to make it easier for Africans to send and receive products globally.

20

Funding Rounds

$3.8b

Money raised

Klarna is a financial technology company providing e-commerce payment solutions for merchants and shoppers.

Location:

Key people:

JSquare is a San Francisco-based company founded in 1985 by Jeff Herman.

Location:

Key people:

15

Funding Rounds

$3.2b

Money raised

Bolt, previously Taxify, is a technology start-up and developer of an on-demand transportation platform.

Location:

Key people:

1

Funding Rounds

$27.5k

Money raised

Full Circle Biochar is a developer of products and technologies based on bio-charcoal for the agricultural markets.

8

Funding Rounds

$431.5m

Money raised

Coursera is an online education technology company founded in 2012 by Daphne Koller.

Key people:

26

Funding Rounds

$1.1b

Money raised

GetYourGuide is a travel booking and planning platform.

Location:

Key people:

2

Funding Rounds

$13.9m

Money raised

Tacit Knowledge is a London-headquartered software and IT consulting company developing enterprise software solutions for digital commerce companies.

Location:

Key people:

6

Funding Rounds

$898.4m

Money raised

Wise, previously TransferWise, is a company that offers money transfers services founded by Kristo Käärmann and Taavet Hinrikus.

4

Funding Rounds

$477.4m

Money raised

Grove Collaborative is an online, subscription-based retailer selling natural home and health products.

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.

1

Funding Rounds

$1.0m

Money raised

Chess.com is an internet chess server, news website and social networking website.

8

Funding Rounds

$398.6m

Money raised

Patreon is a San Francisco-based crowdfunding platform for artists and creators founded by Jack Conte and Sam Yam in 2013.

Location:

Key people:

14

Funding Rounds

$2.5b

Money raised

N26 is a is a mobile banking company headquartered in Berlin, Germany.

Location:

Key people:

5

Funding Rounds

$19.7m

Money raised

Khan Academy is a nonprofit online educational organization that was founded in 2008.

12

Funding Rounds

$1.7b

Money raised

Revolut is a London-based Fintech startup and bank offering mobile banking, card payments, money remittance, and foreign exchange services.

Location:

Key people:

7

Funding Rounds

$66.0m

Money raised

Superplastic is a creative product and experience studio founded in 2018.

Key people:

2

Funding Rounds

$80.9m

Money raised

Hawkers is an Elche, Spain-based sunglass brand.

4

Funding Rounds

$11.2m

Money raised

Misterb&b offers a property rental marketplace used to connect travelers and hosts in the LGBTQ+ community.

Location:

Key people:

8

Funding Rounds

$1.2b

Money raised

Scopely - leading mobile game development company.

Location:

Key people:

4

Funding Rounds

$126.0m

Money raised

Mercury is a company making banking products for startups based in San Francisco and backed by a16z.

Key people:

2

Funding Rounds

$35.0m

Money raised

Stardust is a company that develops solutions for gaming in the metaverse.

Key people:

4

Funding Rounds

$84.9m

Money raised

Physna is a Cincinnati-based 3D modelling software company offering 3D models understandable by software applications for manufacturing, engineering, product design, 3D printing, augmented reality and virtual reality applications.

Location:

Key people:

2

Funding Rounds

$12.2m

Money raised

Haptik is a company developing conversational AI for customer experience.

Key people:

7

Funding Rounds

$484.7m

Money raised

Whatnot is a California-based livestream shopping platform and marketplace.

Key people:

4

Funding Rounds

$42.5m

Money raised

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

9

Funding Rounds

$24.5m

Money raised

Zeel is a New York City-based provider of in-person and virtual on-demand massage and health services from vetted therapists.

Industries:

Key people:

4

Funding Rounds

$4.4m

Money raised

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

2

Funding Rounds

$21.0m

Money raised

ElevenLabs is a voice artificial intelligence (AI) research and development company developing text-to-speech and voice cloning software.

Location:

Key people:

10

Funding Rounds

$1.1b

Money raised

Starling is an UK-based mobile-first digital banking startup.

7

Funding Rounds

$169.8m

Money raised

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

10

Funding Rounds

$5.5b

Money raised

Udaan is an Indian business-to-business e-commerce company based in Bengalore. It was registered as Hiveloop Technology pvt.ltd. in 2016.

Location:

Key people:

9

Funding Rounds

$1.3b

Money raised

Back Market is an online refurbished goods marketplace connecting consumers with sellers of electronic devices.

Location:

Key people:

5

Funding Rounds

$76.0m

Money raised

Simplilearn is an educational technology company with a focus on courses for digital skills.

Key people:

12

Funding Rounds

$507.3m

Money raised

Acorns is an Irvine, California-based micro-investing company allowing users to round up consumer purchases and invest the change.

6

Funding Rounds

$678.5m

Money raised

Klaviyo is a marketing automation software company which has a email software platform with SMS for ecommerce companies.

Location:

Key people:

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

$22.0b

Money raised

A venture capital firm in China that focuses on bringing inclusive financial services to the world.

2

Funding Rounds

$15.0m

Money raised

Launch House is a physical and digital community for entrepreneurs and creators.

Key people:

6

Funding Rounds

$330.5m

Money raised

Casper is a memory-foam mattress retailer.

Industries:

Location:

Key people:

1

Funding Rounds

$30.6m

Money raised

Badoo is a dating-focused social networking service.

Location:

Key people:

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:

2

Funding Rounds

$62.0m

Money raised

ClearTax is a financial technology company providing solutions for income tax filing, GST and mtual fund investments. It participated in the S14 cohort of Y Combinator.

6

Funding Rounds

$324.5m

Money raised

MoneyLion is a mobile banking platform for borrowing, saving, and investing.

2

Funding Rounds

$26.4m

Money raised

Servify is a device lifecycle management platform, which integrates multiple OEM Brands and a sales and service ecosystem to deliver an after-sales service experience.

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.

3

Funding Rounds

$168.5m

Money raised

D2L is a provider of elearning solutions founded by John Baker that uses the Brightspace learning management platform.

8

Funding Rounds

$543.7m

Money raised

Paddle is a London-based developer of a software-as-a-service commerce platform offering payments infrastructure for software companies.

8

Funding Rounds

$863.8m

Money raised

Weee! is an Asian and Hispanic grocer in North America, founded by Larry Liu.

Key people:

2

Funding Rounds

$30.0m

Money raised

Drivezy, formerly JustRide, is a marketplace for self-drive cars and two-wheeler rentals, headquartered in Bangalore, Karnataka.

2

Funding Rounds

$19.0m

Money raised

Fnatic is a professional eSports organization with headquarters in London.

Location:

Key people:

1

Funding Rounds

$1.0m

Money raised

Jaagodeal is an online shopping platform in Bangladesh that was founded in 2018. It sells a wide range of products, including fashion, home goods, electronics, and beauty products.

Key people:

3

Funding Rounds

$23.0m

Money raised

Serve Robotics is a developer of autonomous robotic vehicles intended for use in delivery, especially food delivery, in urban settings.

Key people:

8

Funding Rounds

$2.0b

Money raised

Allbirds is a startup company manufacturing wool footwear.

8

Funding Rounds

$117.5m

Money raised

Skillshare is a New York-based educational technology company offering an online learning community for creative entrepreneurs.

Key people:

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