written by
Ilias Ism

The 5 Best Digital Marketing Agencies in Boston

Digital Marketing Agencies 4 min read

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Boston is home to a thriving marketing and advertising industry, with many top agencies delivering innovative, impactful work for major brands.

If you're looking to hire a digital marketing partner in the Boston area, here are five of the best agencies to consider:

1. Digitas

Headquartered in Boston with additional offices in New York, Chicago, Detroit, San Francisco and more, Digitas is one of the largest and most well-established digital agencies not just in the city, but in the country. Founded in 1980, they have decades of experience helping brands build connections with people through digital media, creative development, data, and technology.

Some of Digitas' most notable clients have included American Express, Harley-Davidson, Delta, Aflac, and Lyft. Their Boston office, located at 40 Water Street, is their flagship location with over 1000 employees. Digitas was named to Ad Age's Agency A-List in 2022 and is consistently recognized as a leader and innovator in the digital marketing space.

2. Arnold Worldwide

Arnold is a creative agency with deep roots in Boston, founded in the city in 1946. In addition to their Boston headquarters on Summer Street, they also have an office in New York. Part of the Havas Group, Arnold is known for their brand-building work that spans advertising, digital, social, and more.

Over the years, Arnold has produced iconic campaigns for clients like Volkswagen, Ocean Spray, Jack Daniels, and Progressive Insurance (they created the character of Flo). With a focus on "making it safe to be brave", Arnold prides itself on bold ideas that drive results. Adweek named them Comeback Agency of the Year in 2010.

3. MullenLowe

MullenLowe (formerly Mullen) is another one of Boston's powerhouse agencies. Founded in 1970, they have grown to be one of the largest full-service shops in the country with expertise across creative, media, PR, social, mobile, and more. Their Boston office is located in the Seaport District.

Major clients of MullenLowe have included JetBlue, Zappos, U.S. Cellular, Grey Goose, and Burger King. They are especially known for their Super Bowl advertising work. In 2015, Mullen merged with global creative network Lowe to form MullenLowe, expanding their international footprint.

4. Hill Holliday

With headquarters on Drydock Ave in the Seaport, Hill Holliday is the largest advertising agency founded in Boston. Established in 1968, they have built their reputation on attention-grabbing campaigns for brands like Dunkin' Donuts, Bank of America, Planet Fitness, and Tempur-Sealy.

Hill Holliday's work spans brand strategy, creative advertising, media planning/buying, digital marketing, social media, and more. They have won numerous industry awards over the years, including Adweek's Media Plan of the Year four times in a row. Hill Holliday is part of the IPG network of agencies.

5. Allen & Gerritsen (A&G)

Founded in 1985, Allen & Gerritsen is the largest independent ad agency in Boston. Operating out of offices in the Seaport District and Philadelphia, A&G provides services across brand strategy, advertising, public relations, media, analytics and more to "build your brand's best self".

Some of A&G's most recognizable clients have included the Boston Celtics, Yuengling beer, Comcast, Blue Cross Blue Shield, and Sunoco. They are 100% employee-owned and have been named a Best Place to Work by both the Boston Globe and Boston Business Journal multiple times.

Choosing a Boston Digital Marketing Agency

While Digitas, Arnold, MullenLowe, Hill Holliday and A&G consistently stand out as the top tier of Boston digital agencies, there are many other great firms doing notable work in the city as well. This includes Connelly Partners, Almighty, The Fantastical, CTP Boston, Forge Worldwide, and more.

The Boston agency scene is deep with talent across digital marketing disciplines like creative, media, social, influencer marketing, PR, data/analytics, and technology. Many Boston agencies seamlessly integrate these capabilities to act as a one-stop shop for brands.

For marketers, Boston provides the opportunity to tap into this rich agency ecosystem and find the right partner to help you build your brand and drive business results. The city's agencies bring a potent mix of strategic thinking, creativity, and digital know-how, powered by some of the sharpest minds in the industry.

Whether you're a major global brand or an up-and-coming challenger, Boston's digital agencies can provide the rocket fuel to take your marketing to the next level. By plugging into this community, you'll have access to the latest innovations and ideas in digital marketing.

So when searching for your next agency partner, don't overlook Boston. With firms like Digitas, Arnold, MullenLowe, Hill Holliday, A&G and more leading the charge, the city has cemented itself as an advertising and digital marketing hub that can go toe-to-toe with New York, Chicago, and LA any day.


The top agencies highlighted here are just the tip of the iceberg in terms of the breadth and depth of Boston's digital marketing talent. The city's unique blend of creativity, strategic thinking, cutting-edge innovation, and old-school work ethic has created a special environment for agencies to thrive.

If you want an agency that will challenge you, push boundaries, and most importantly, deliver results, then look no further than Boston. With a vibrant digital marketing ecosystem that continues to evolve and grow, the city is well-positioned to be at the forefront of the industry for years to come.

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