The 20 best marketing agencies in Boston in 2026

The North Shore digital agency whose AI work comes with a measured payoff. For Skillsoft, Imarc integrated ChatGPT translation into its Craft CMS and cut the cost per translated page from $120 to $1.85, and the processing time from three hours to three minutes. A custom AI integration for Tufts Medical Center reached 95% accuracy in classifying medical abstracts.

Outside AI, AACSB's outbound clicks rose 780% and its site users 123%. Imarc is based at 77 Elm Street, Suite 101, in Amesbury, at the northern edge of Greater Boston, with 28 staff in the Boston area, including CEO and partner Patrick McPhail. Imarc says it has been an Inc. 5000 honoree eight times. Its AI results are engineering builds, not campaign automation. Take it when the job is a website or intranet with AI built in.

The B2B go-to-market firm with a Head of AI on its leadership team. Geoffrey Sidari is its Chief Innovation Officer and Head of AI, and its published AI policy discloses where AI contributes to client work and says every citation is validated. Its campaign for BioCatch, "Fight Bank Fraud with their Best Behavior", won Gold for Best use of AI at the 2025 Elevation Awards.

For an unnamed SaaS company, a new go-to-market sales strategy improved sales efficiency by 42%. The office is at 75 Fountain Street in Framingham, with 40 staff in the Boston area, including Ashley DePaolo, President of Agency Services, North America. It also has offices in Bethesda, London, Marlow and Ontario. Its AI awards are for campaigns, and its numbered case studies name no client. Take it when you need go-to-market strategy, ABM and measurement from one firm.

The Connecticut-headquartered digital agency with a Boston office and a published AI search result. For an Ivy League university it does not name, Primacy reports the #1 AI search ranking across 80% of high-intent online program queries, 42% more organic traffic from AI summaries and chat, and 2.3x the qualified leads from pages optimized for AI Overviews. Its portfolio includes GustieBot, an OpenAI-powered web app built to boost enrollment, and DUO, a private enterprise-grade AI platform.

Catholic Health's cost per lead fell 11%, with 343 appointment requests. The Boston office is at 31 State St, 9th Floor, with 9 staff in the Boston area, including SVP of Technology Charlie DeLong. The headquarters is in Farmington, Connecticut, and the university is not named.

The partnership marketing agency with its own private AI assistant. APVision GPT runs on a fully internally hosted LLM and streamlines account workflows, and its GEO work for an unnamed financial services brand lifted LLM citations 60% month over month at peak and took AI share of voice from 22% to 45%. I have written that "partnership ads are evergreen: a winning creator reel runs for months at a stable cost-per-lead", and partnerships are the channel this firm is built around.

Allbirds' revenue rose 371% year over year on its influencer strategy, and Vistaprint cut its costs 23%. It publishes no street address, and 20 of its staff are in the Boston area, including founder and chairman Robert Glazer. The GEO result names no client.

The automotive specialist, and the largest Boston-area team on this list. C-4 grew AI search traffic from ChatGPT, Gemini, Perplexity and Copilot 4x for 10 dealership groups, and a 10+ location auto group grew search visibility 28%. Its ads run on automated management in real time based on inventory, demand and relevancy. For a dealer, the car on the lot today is the ad, and automation that follows the stock is the right design.

The headquarters is at 701 Edgewater Drive, Suite 300, in Wakefield, with 148 staff in the Boston area, including Chief Operating Officer Jeff Johnson and VP of Revenue Brad Bass. Its AI search result names no dealer group, and the site names no AI tool or AI role. Take it when you sell cars and want search, paid media and AI visibility run from one team that only does automotive.

The B2B technology PR and marketing agency with a staffed Boston office. It sells a Clay-powered GTM orchestration service, and it launched a B2B AI Search Visibility Benchmark and an AI Domain Impact Index for PR measurement. Walker Sands says its generative engine optimization work for Priority Commerce was a Shorty Awards finalist, and that it has been an Inc. 5000 honoree ten times.

Its channel record includes a 67% increase in Breakthrough's organic search traffic. The Boston office is at 560 Harrison Avenue, Suite 408, with 25 staff in the Boston area, led by Hailey Driscoll, SVP of Strategic Communications and Managing Director, Boston. The headquarters is in Chicago, and the GEO item is an awards entry rather than a published number. Take it when you want PR and pipeline operations from one firm.

The Waltham sales-development and demand-generation firm that builds its clients' outbound machinery. demandDrive is a certified Clay Studio partner that implements, automates and manages Clay, and its automation and agentic workflows service covers GTM process mapping, lead routing, workflow orchestration and CRM automation. My view is that startup revenue teams now run outbound themselves, enriching leads in Apollo and Clay, and are finding it harder to get good opens and clicks. A firm that builds the enrichment and staffs the calls covers both halves of that problem.

The headquarters is at 135 Beaver St., Suite 307, with 84 staff in the Boston area, including co-founder and President Daniel Paul and Chief Marketing Officer Sarah Esteverena. It is a sales-development firm first, and its pipeline results are not tied to AI.

The B2B technology agency with a Chief AI Officer on its team page. Its GEO practice runs daily competitor monitoring and search agents that surface category movements, and its team page lists Chief AI Officer Cody Miles alongside a Senior Director of SEO + AI Strategy. The numbers are enterprise B2B: SOLIDWORKS clicks rose 339% on a non-branded keyword strategy, Workday's sales-accepted leads rose 88%, and ABM orchestration with 6sense influences 75% of a global logistics leader's opportunities.

BOL is headquartered in San Diego, and 3 of its staff are in the Boston area on LinkedIn, including Senior Director of Professional Services Lizzie Magnarelli and Group Account Director Greg Smith. Its AI work is described in detail but carries no published result. Take it when you sell B2B technology and want ABM and GEO from one team.

The Boston performance agency that builds AI agents for its clients. Its AI and machine-learning practice builds agents that automate workflows across marketing, sales, operations and service, and connects LLMs to a client's CRM, warehouse and tools through RAG systems and MCP integrations. We built Nitrosend so users can "create campaigns, build automations, manage audiences and review performance entirely through natural language" over that same protocol, so I rate MCP work highly.

LivePerson earned $180M in new business, and PLAY Airlines saw 60X returns on digital targeting. It is hiring an AI Innovation Engineer for its Boston office at $110,000 to $135,000. It publishes no street address, and 103 of its staff are in the Boston area, including VP and Head of Web & Brand Samantha Howard. The menu is full-service, and no published result is tied to its AI.

The B2B and cybersecurity marketing consultancy that builds custom GPTs for sales teams. Magnetude builds CustomGPTs for sales enablement and has piloted an AI social-selling tool for 6 months, deployed with several clients. That is AI pointed at the hand-off between marketing and sales rather than at content volume.

For Blue Cedar it added $2m in pipeline opportunities, and Magnetude says it won 2026 Hermes Creative Awards for marketing excellence. It publishes no street address, and 13 of its staff are in the Boston area, including founder and CEO Natalie Nathanson and VP of Client Strategy and Delivery Cyndy Hunter. Its AI work is described in one insights post, with no number tied to it. Take it when you sell security or B2B technology on HubSpot and want your sales team armed with AI.

The global PR agency with a Boston office and a packaged AI program. SAIL, FINN's AI integration service, takes marketing and communications teams through audits, roadmaps, training and custom deployments, and for one client FINN built a model trained on that client's research and brand voice. I have said that "advertising is you saying 'hey we're great, trust us' and PR is a news brand saying 'hey these guys are great, trust us'", and FINN's record is that second kind: Epic Games earned 700+ pieces of coverage across Southeast Asia.

The Boston office is at 200 State Street, 3rd Floor, with 23 staff in the Boston area, including Senior Partner Jodi Petrie. Boston is one office of a global firm, and its AI examples name no client and carry no number.

The SEO and GEO agency with an office in Burlington. Its team page credits co-founder Dan Hinckley, its former Chief Product & AI Officer, with leading development of its AI-driven marketing tools for GEO, SEO and CRO. The published results are among the strongest here: SimpleTexting's organic SQLs rose 500% year over year, and channel testing for BetterUp drove a 117% improvement over its conversion goals. Go Fish says it was named SEO Agency of the Year at the US Search Awards.

Go Fish is headquartered in Raleigh, and its Boston-area office is at One Wall Street, 5th Floor, Burlington, with 15 staff in the Boston area, including SVP of Client Services Sheila McAneney. Its AI is tooling rather than a published result with a number.

The digital experience agency for banks and credit unions, headquartered in Bedford, New Hampshire. SilverTech built a custom HubSpot integration with Fiserv Raddon that uses a bank's first-party data to predict AI-driven Key Life Indicators and personalize content in real time, and for St. Mary's Bank it runs AI-powered insights on Azure AI Foundry and Microsoft Fabric, with 77% of website traffic now getting a personalized experience. My view is that personalization starts with a customer tired of irrelevant emails from stores they shop at, and I was that customer.

SilverTech is headquartered at 5 Commerce Park North, Suite 101, in Bedford, New Hampshire, and its Greater Boston team includes President Jeff McPherson and Chief Growth and Sales Officer Chris Crombie. It is a full-service digital experience firm.

The Boston PR and content agency for B2B technology companies. Scratch benchmarks a client's presence across major LLMs against its top competitors, using proprietary tools and AEO platforms. My view is that building in public is how a SaaS company earns trust and visibility, and a PR team that checks what the assistants say about a client can show whether that trust is landing where buyers now ask.

Its team has 21 staff in the Boston area, including Principal Lora Kratchounova, SVP and Public Relations Practice Lead Anya Nelson and Vice President of PR Julianna Sheridan. Its AI work is benchmarking with proprietary and third-party tools, and it publishes no result tied to it. Take it when you sell B2B technology and want PR, content and AI search watched by one Boston team.

The Cambridge web and CRM shop that builds AI agents on a client's own data. Neptune Web builds data intelligence agents that connect a client's CRM, email marketing, website analytics and sales tools so a team can ask questions of its data in plain language, and action-based agents that trigger marketing and sales workflows and help qualify and route leads. Its data modeling work brings CRM, marketing automation and website data together in Sofilytics, the CRM and marketing automation platform it sells, and structures that data so it can support large language models.

Neptune Web is based in Cambridge, and 4 of its staff are in the Boston area on LinkedIn, including President Andrea Gabrielle and Director of Interactive Production Carl Tortola. Its portfolio is website builds, and no client result is tied to its AI agents. Take it when you want a website, a CRM and custom agents from one small team.

The Romanian B2B growth agency with its CEO and a managing partner in Boston. Its AI strategy and governance service starts with an audit of internal processes, writes AI policies and delivers automated workflows, internal-support AI agents, chatbots and CRM integrations, and it runs NNC Growth Hub, a marketing and sales automation platform with AI marketing and sales agents and an AI website chatbot. Its published results are search and pipeline numbers: LiveAction reached #1 on Google for 599 keywords in less than six months, and Morphisec gained 1,692 leads in less than six months.

Four of its staff are in the Boston area on LinkedIn, including CEO Lory Niculae and Managing Partner Greg Corson, and they are its leadership and business development team. No client result is tied to its AI work. Take it when you sell B2B technology and want search, lead generation and AI adoption from one agency.

The Boston GTM data agency that measures what AI search sends a client. Convertiv ties LLM-referred traffic to conversion value, reports Share of Model, AI visibility and sentiment, and uses log-file analytics to show how AI crawlers move through a client's site. My view is that larger buyers now review vendors with AI, so how a brand reads in an AI comparison can matter more than where it ranks in search. Convertiv measures that directly.

For an unnamed client, landing page conversion rose 30%. It has 15 staff in the Boston area, including Founding Partner Chris Pollara and EVP of Strategy Tim Radwanski. Its site names two clients, Carbon Black and Lacework, and its one published result names neither. Take it when you want AI search measured against conversions.

The London-headquartered integrated agency with a Boston team and an in-house suite of AI agents. Orbital, TEAM LEWIS's proprietary suite of AI agents, is grounded in each brand's context and data and runs inside its global studio network. Schneider Electric's share of voice jumped 84%, and JLab secured 586 placements, 112% of its goal.

TEAM LEWIS runs Boston as an integrated marketing location, though it publishes no street address, and 23 of its staff are in the Boston area, including Senior Vice President Talia Scribner and Managing Director of Performance and Analytics Nash Osgood. Orbital is described in a single paragraph, with no client result tied to it. Take it when you want PR and performance marketing from a global network with a Boston team.

The Boston SEO shop that now builds task-automation agents, and says it has worked with over 600 companies since 2005. Its AI Agents for Marketing service builds tailor-made agents that automate repetitive SEO, content, social media, email and reporting tasks. For an unnamed manufacturing and logistics company it used AI-powered keyword clustering, and organic traffic rose 190% while inbound leads doubled.

Brick Marketing has 3 staff in the Boston area on LinkedIn, including President Nick Stamoulis and Digital Marketer Katherine Tsoukalas. Its case studies name no clients, and its menu is broad. Take it when you want SEO and AI search from a long-running local team.