18 Boston Adtech Companies You Need to Know

Boston is producing top adtech companies helping brand activiate customers across all platforms.

Written by Justine Hofherr
Two advertising professionals sit at a desk looking at a desktop computer screen.
Photo: Shutterstock
UPDATED BY
Abel Rodriguez | Apr 04, 2025

As more and more people have started using their smartphones and tablets over their desktops, advertising companies have had to completely rethink how to market products and brands to the masses. Understanding how to better reach people involves a lot of big data and talented minds, which helps explain why the adtech sector is booming in many cities around the country.

Boston is becoming a formidable competitor to Silicon Valley and NYC for producing successful marketing and adtech companies. Anyone interested in witnessing the city’s blossoming adtech sector should keep an eye out for the massive offices of some of the most notable digital marketing companies in Boston — Mavrck off North Station, HubSpot near the Lechmere stop and Klaviyo by Dewey Square are just a few local giants paving the way for the next generation of adtech companies. To help you make sense of the burgeoning market, we’ve rounded up some top Boston adtech companies to know.

Top Boston Adtech Companies to Know

  • Klaviyo 
  • HubSpot
  • SessionM
  • Wista
  • Later
  • Brandwatch
  • ViralGains

Related ResourcesTech & Startup Jobs in Boston

 

Top Adtech Companies in Boston

Klaviyo is a CRM platform built specifically for B2C companies. The technology helps power digital relationships between businesses and customers. The platform orchestrates email and SMS campaigns, and it leverages AI to support custom workflows across communication channels. Its AI features can also simplify responding to customer reviews and generating email content. 

 

Amp Agency has roots in experiential and promotional marketing, but has shifted gears to become a full-service advertising agency. Amp works provides clients with services ranging from product sampling to street team promotion. Amp is headquartered in Boston’s North End and also has office locations in New York and Los Angeles. Its team includes over 200 employees.

 

TVision is a television performance metrics platform that informs brands, agencies and networks on the true value of their content. The company’s platform measures when audiences look away from or are fixated on the television to give brands insights on consumer engagement levels. Brands use TVision to optimize engaging content for customers.

 

Jebbit’s platform enables marketers and digital sales teams to create branded, personalized mobile experiences to engage, profile and convert audiences. With customers a variety of well-known enterprise customers, it’s not too surprising Jebbit was named one of the “Top 25 Most Promising Companies in the World” by CNBC, and its co-founders were Forbes 30 Under 30 honorees.

 

SessionM is a customer engagement and data management platform helping businesses gain insights on their audiences. The platform is designed to give marketing and advertising teams access to granular customer data that can support personalized online experiences and deeper brand loyalty.

 

Routinely voted as one of the top places to work in Massachusetts by the Boston Globe, HubSpot provides more than just a fun company culture. HubSpot tries to help companies optimize their sales tactics by offering an inbound marketing and sales platform that attracts visitors, converts leads and closes customers.

 

Curata is all about creating a world where marketers don't have to solely rely on the media to connect with their customers. Through content marketing, the company hopes to help customers learn from — and sometimes laugh with — brands on their own time. Curata’s content curation software makes it easy to find and share relevant content across a variety of channels.

 

Pixability’s technology aims to revolutionize video advertising on premium platforms like Facebook, Instagram, Twitter and YouTube. Its solution works across “walled gardens” to support advanced audience targeting and insights, simplified media execution and campaign management and complete cross-platform reporting. The technology is designed to help media agencies and brand advertisers deliver much more effective campaigns. On 3 million+ YouTube channels alone, Pixability’s tools unlock advanced targeting capabilities to reveal consumer behavior, interests, demographic and location.

 

Adelphic Mobile is a mobile and cross-channel advertising platform that connects big brands with audiences. Adelphic sets itself apart from other mobile advertisers by giving companies better insight into who their individual customers are and what their environments are like, maximizing valuable data points.

 

Digilant partners with the world’s leading agencies and brands to provide customized and scalable programmatic media solutions. Using data science and an advanced tech platform, Digilant makes sure companies’ video, mobile and social solutions are delivered in a way that reaches the most people. Digilant targets brands’ users by identifying audience members’ characteristics and behaviors and calculating the lift from these potential new customers.

 

Since its inception in 2004, Brightcove has flourished into a popular online video hosting platform and online video player solution. The Boston-based company’s cloud-based platforms help brands deliver the best customer experiences, increase their reach and grow their revenue. Brightcove went public in 2012, and today the company has over 5,000 customers in 70 countries.

 

Designing the perfect media strategy for both TV and video can be hard. That’s why Extreme Reach, which has an office location in Dedham, has helped companies get their ads easily to both TV and video destinations. Its solutions enable data-driven creative strategies, for example, and simplify payroll processes for creative production.

 

Founded in 1996, CTP is a digital advertising and PR firm located in Boston’s North End. The company helps connect audiences in a human way, translating their emotions and desires into the work. In 2013, for example, the Red Sox were coming off a rough season so CTP designed a campaign called “What’s Broken Can Be Fixed,” with the goal of restoring faith in the team among fans. It worked. The campaign increased ticket sales, sponsorships and morale for the Sox’s following season.

 

Cambridge-based Wistia makes managing video content easy and simple with its versatile player. Customizable, flexible and adaptable, the Wistia player provides a smooth viewing experience on multiple devices. Wistia also offers services such as video security, performance analytics and marketing automation.

 

Later helps companies identify and convert audience members into micro-influencers using trusted branded content on businesses’ e-commerce sites or social media channels. This content generally outperforms display ads and helps convert influencers’ friends.

 

By embracing a sustainable and scalable approach to original storytelling, Skyword liberates brands from ineffective marketing practices and inspires them to create deeper connections with their audiences through content. To do this, Skyword custom recruits thousands of creatives who develop content for clients. Its talent pool includes writers and videographers with experience and influence in a broad range of subjects, languages and markets who help companies make deeper connections with their audience members.

 

Companies know that social media can be used for more than racking up 100 “likes” on Facebook or a handful of retweets. Just ask Boston-based Brandwatch, which analyzes brands’ social media presence, giving companies valuable insight into campaign strategies, competitive research and audience interest. Its technology can do things like measure whether a company’s recent product launch impacted customers’ perception of the brand by looking at social conversations and monitoring brand conversion.

 

Many companies are realizing consumers hate intrusive ads, so ViralGains uses online video to create better connections between brands and consumers. At the same time, ViralGains collects voluntary feedback from viewers on its video player so brands can optimize their campaigns based on measured sentiment.

 

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