Sector

Digital Advertising Platforms

For businesses that need to buy, sell, target or measure digital advertising at scale, and for teams trying to stop wasted ad spend or unsold inventory.

23 businesses

ExactDrive

Milwaukee, Wisconsin, United States

We are always on the lookout for motivated agencies and businesses with a growth and improvement mindset. The more successful you…

5.0 1 reviews

SmartyAds DSP

Wilmington, Delaware, United States

Smartyads is a global adtech company founded in 2013, providing programmatic advertising and monetization solutions for media…

4.6 16 reviews

AdCritter

Nashville, Tennessee, United States

The world's only AI-first dsp.

4.5 8 reviews

Convert2Media

Ocoee, Florida, United States

Convert2media's performance marketing network currently supports a wide variety of promotional channels ranging from paid search…

4.5 12 reviews

W4

Los Angeles, California, United States

W4 llc was acquired by digital media solutions on July 1, 2018. The w4 performance ad market™ was officially wound down on jan 1…

4.5 1 reviews

The Trade Desk

Ventura, California, United States

It's more than just clicks. Premium streaming tv. One-click commerce. Trusted journalism. The world’s most popular audio and…

4.4 58 reviews

Adapex

New York, New York, United States

Adapex helps leading us websites maximize their monetization through expert optimization of all programmatic channels and…

4.3 3 reviews

Instinctive

New York, New York, United States

Improving digital advertising and online privacy.

4.3 3 reviews

PubWise

Atlanta, Georgia, United States

Publishers and advertisers deserve radical observability™ of the entire digital advertising supply chain. Our patent-pending…

4.3 10 reviews

WhatRunsWhere

San Francisco, California, United States

Whatrunswhere is the premiere media intelligence platform for desktop, mobile, and native display advertising. Since 2011, we've…

4.3 4 reviews

Innovid

New York, New York, United States

Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported…

4.2 6 reviews

Contextual Targeting Advertising

Los Angeles, California, United States

Admedia helps agencies and brands meet their KPIs and hit their ROI objectives. Admedia’s cross-channel advertising platform…

4.0 2 reviews

Solve Media

Philadelphia, Pennsylvania, United States

Solve media’s performance-based online advertising platform is the gold standard for online branding, at scale. The type-in™…

4.0 1 reviews

Trueffect

Westminster, Colorado, United States

Trueffect is a data and analytics company focused on media precision. Precision is the next great frontier as media and marketing…

4.0 1 reviews

El Toro Ad Tech

Louisville, Kentucky, United States

El toro is a cutting-edge digital marketing company specializing in hyper-targeted audience and marketing solutions. Our…

3.9 12 reviews

Clickable

New York Ny, New York, United States

Clickable makes marketers thrive by delivering powerful intelligence for social and search advertising. With clickable, marketers…

3.8 15 reviews

Marin Software

St Louis, Missouri, United States

Marin was acquired by trilogy / esw capital in 2025. From our first release in 2007, marin helped thousands of professional…

3.8 449 reviews

ZEDO

San Francisco, California, United States

Zedo, inc. Is a platform offering high impact formats. Known for technical innovation and ability to scale, zedo offers…

3.8 15 reviews

Xandr Invest

New York, New York, United States

As of September 25, 2018, appnexus is now "appnexus, a xandr company." please follow along on…

3.7 33 reviews

Adext AI

Palo Alto, California, United States

Adext was the first ad tech artificial intelligence (AI) software as a service (SaaS) self-service solution in the world, during…

3.5 7 reviews

infolinks

Ridgewood, New Jersey, United States

Founded in 2007, infolinks utilizes our unique ad technology platform and publisher marketplace to provide global advertising…

3.3 2 reviews

PubMatic

Redwood City, California, United States

Pubmatic is the leading AI-powered ad tech company delivering digital advertising performance. Through an intelligent, unified…

3.2 11 reviews

Sojern Traveler Platform

San Francisco, California, United States

Sojern is a travel marketing platform that helps you find, attract, convert, and engage your customers throughout the travel…

1.8 2 reviews

These businesses build and run the infrastructure that moves money through digital advertising: the platforms that buy impressions on exchanges, the networks that connect advertisers to publisher inventory, the tools that manage a campaign's bidding and creative rotation, and the systems that stitch together audience data so an ad reaches the right person. Hire one and what changes is operational — you stop manually setting bids in ten different dashboards, you get a single view of where spend is going across mobile, display, native and programmatic channels, and decisions about targeting, pacing and placement start happening on data rather than guesswork.

People end up here because something concrete is broken. A marketing team is spending across several channels with no consistent way to compare performance, or spend is climbing while conversions stay flat and nobody can say why. A publisher has inventory sitting unsold or being sold too cheaply through a single network. Someone has noticed a chunk of traffic looks like bots and suspects click fraud is eating the budget. Or growth has stalled because the audience data used for targeting is thin, third-party cookies are disappearing, and campaigns are reaching fewer of the right people than they used to.

The providers here split roughly by which side of the transaction they serve and how much they automate. Some are demand-side, built for advertisers to plan, bid and optimise campaigns; others are supply-side, built for publishers to manage and price their inventory; some sit in the middle as networks or data platforms matching the two. Within that, the real differences to compare are: how much is self-serve dashboard versus managed service with an account team doing the work for you; how fraud detection actually works (rules-based filtering versus behavioural modelling) and how transparent the reporting is; whether the data layer relies on first-party data you own or third-party matching that's getting harder to rely on; and how deep the integration goes with the exchanges and channels you actually use, since a platform that's excellent for mobile app install campaigns may be weak on native or CTV. Pricing models vary too — CPM, CPC, percentage of managed spend — and that affects whether the incentives are aligned with your results or just with volume.

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