10 Best Marketing Agencies in Massachusetts [2026 Updated]

1. Hill Holliday

• Focus: Full-service marketing and communications
• URL: https://www.hhcc.com/
• Overview: Hill Holliday is a Boston-based marketing and communications agency offering comprehensive services, including advertising, media planning, and digital marketing. They have worked with clients like Bank of America and LG Appliances.

2. Jack Morton Worldwide

• Focus: Experiential marketing and brand experiences
• URL: https://www.jackmorton.com/
• Overview: Jack Morton Worldwide specializes in creating memorable brand experiences through event marketing, sponsorship activation, and digital engagements. With a global presence, they have collaborated with brands like Google and Twitch.

3. Arnold Worldwide

• Focus: Advertising and marketing communications
• URL: http://arn.com/
• Overview: Arnold Worldwide is an advertising agency known for its creative campaigns and strategic marketing solutions. They have partnered with clients such as Progressive Insurance and PNC Bank.

4. MullenLowe U.S.

• Focus: Integrated marketing communications
• URL: https://us.mullenlowe.com/
• Overview: MullenLowe U.S. offers services including creative, public relations, strategy, and digital experience. They have offices in Boston, Los Angeles, and New York City.

5. Sagefrog Marketing Group

• Focus: B2B marketing with specialties in healthcare, technology, industrial, and business services
• URL: https://www.sagefrog.com/
• Overview: Sagefrog is a top B2B marketing agency and platinum HubSpot partner, offering services like branding, digital marketing, and content creation. They focus on accelerating client success through integrated marketing strategies.

6. TheeDigital

• Focus: Web design, SEO, PPC, and digital marketing
• URL: https://www.theedigital.com/
• Overview: TheeDigital specializes in building WordPress websites and running digital campaigns aimed at driving leads. They have helped clients across various industries improve their online presence and conversion rates.

7. Havas Edge

• Focus: Direct response advertising
• URL: https://www.havasedge.com/
• Overview: Havas Edge is an award-winning, fully integrated performance marketing agency specializing in direct response advertising. They have worked with clients like The Humane Society of the United States.

8. Havas Media Group

• Focus: Media buying and planning
• URL: https://www.havasmedia.com/
• Overview: Havas Media Group is the media division of the global marketing and communications group, Havas. They offer services in media planning and buying, working with clients like TracFone Wireless and Fidelity Investments.

9. iProspect

• Focus: Digital performance marketing
• URL: https://www.iprospect.com/
• Overview: iProspect is a leading digital performance marketing agency that drives direct business performance for its clients through services like SEO and SEM. They have worked with clients such as Staples.

10. MERGE

• Focus: Advertising with expertise in health, life sciences, financial services, and healthcare
• URL: https://mergeworld.com/
• Overview: MERGE is an award-winning marketing agency offering services in advertising, branding, and digital marketing. They have partnered with clients like Dell EMC and Horizon BlueCross BlueShield of New Jersey.