Company lists · Data refreshed September 2026

Top 25 Martech integration firms based in Boston, United States

Name: Martech integration firms based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 54 companies tracked

RevenueBase identified 54 martech integration firms headquartered in Boston, United States as of September 2026 and tracks 4,484 professional contacts across them, including 2,194 with verified work emails. Across the United States, New York is the largest hub for this category (187 companies); Boston has 54.

This list covers martech integration firms headquartered in Boston, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

54Companies

4,484Contacts tracked

2,194Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest martech integration firms based in Boston, United States

Ranked by team size

Top 25 of 54 martech integration firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to martech integration firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 28, 2026
2	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,087 contacts →
	Indirect evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 28, 2026
3	829 Studios	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	261 contacts →
	Indirect evidence “We are your partner in performance, delivering tech-enabled, full-service digital marketing solutions optimized to elevate your business.” Source: RevenueBase Database · checked Sep 28, 2026
4	Revotas	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	51 contacts →
	Indirect evidence “Revotas is an insights-led customer experience platform trusted by over global consumer brands such as Miele, Beşiktaş, Little Caesars, Toyota, Elite World Hotels and more.” Source: RevenueBase Database · checked Sep 28, 2026
5	EMI Strategic Marketing	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	43 contacts →
	Indirect evidence “EMI is driven by results and focused on helping clients master change, grow profitable relationships and move forward faster.” Source: RevenueBase Database · checked Sep 28, 2026
6	Opfocus	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “OpFocus was started in 2006 with the goal of helping companies run their businesses better.” Source: RevenueBase Database · checked Sep 28, 2026
7	Dataxu	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	23 contacts →
	Indirect evidence “In 2009, dataxu® was founded on the premise that data science could help make marketing better.” Source: RevenueBase Database · checked Sep 28, 2026
8	Convertiv	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Convertiv is the marketing agency that delivers for businesses that demand high performance, efficiency and digital (design) excellence.” Source: RevenueBase Database · checked Sep 28, 2026
9	MAARK	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	19 contacts →
	Indirect evidence “Maark (a WillowTree company) delivers end-to-end digital marketing services and cutting-edge product development in complex industries.” Source: RevenueBase Database · checked Sep 28, 2026
10	Millennium Agency	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Millennium Agency is a nationally-recognized, top woman-led boutique creative branding, storytelling/messaging and digital marketing strategy firm with a passion for accelerating…” Source: RevenueBase Database · checked Sep 28, 2026
11	Synapse	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Synapse converts marketing spend into business growth through smarter strategy, AI optimization, and performance that speaks for itself.” Source: RevenueBase Database · checked Sep 28, 2026
12	Customer Portfolios	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Customer Portfolios is a marketing technology leader that empowers its global clients to maximize the value of each customer.” Source: RevenueBase Database · checked Sep 28, 2026
13	Raina Solutions	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	14 contacts →
	Indirect evidence “Raina works with clients to identify business and technology needs and respond with customized solutions that significantly leverage investment and produces desired growth.” Source: RevenueBase Database · checked Sep 28, 2026
14	Faster	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Faster is a business workspace where people and AI use the same tools, permissions, customer context, and review flows to run websites, bookings, payments, follow-up, and growth…” Source: RevenueBase Database · checked Sep 28, 2026
15	Tinktanc	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “At Tinktanc, we are dedicated to empowering businesses with innovative technology solutions and strategic marketing services.” Source: RevenueBase Database · checked Sep 28, 2026
16	Sunday Morning Marketing	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Sunday Morning Marketing is a contemporary marketing agency dedicated to accelerating brands through creativity, technology, and data in the digital age.” Source: RevenueBase Database · checked Sep 28, 2026
17	Full Cortex	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Our award-winning team of marketing and sales experts will work with you to develop a robust growth solution that is unique for your business.” Source: RevenueBase Database · checked Sep 28, 2026
18	Bridge Builder	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “At Bridge Builder, we specialize in helping organizations optimize their Salesforce and marketing automation ecosystems with a hands-on, strategic approach.” Source: RevenueBase Database · checked Sep 28, 2026
19	Traverse Digital Marketing	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Traverse is a digital marketing agency that helps organizations deliver their message across the right channels, in the right way and at the right time.” Source: RevenueBase Database · checked Sep 28, 2026
20	Conduit Innovation	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Conduit Innovation takes a thorough systematic customer-centric approach to optimizing the cohesiveness of your Marketing, Sales and IT operations around the wants and needs of…” Source: RevenueBase Database · checked Sep 28, 2026
21	Darby Digital	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “As a business leader with a vision for success, you recognize the importance of having a reliable partner who can navigate the complexities of the digital age, drive growth, and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Celerity Is, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	1 contacts →
	Indirect evidence “Driven by data.” Source: RevenueBase Database · checked Sep 28, 2026
23	AMS	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “We are a group of professionals passionate about all things digital marketing.” Source: RevenueBase Database · checked Sep 28, 2026
24	Repackaged	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Repackaged is a product marketing and analyst relations consultancy for European B2B SaaS companies entering or scaling in the United States.” Source: RevenueBase Database · checked Sep 28, 2026
25	Promark AI	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “ProMark AI is a cutting-edge software company focused on using artificial intelligence (beta) and automation (live) to help businesses optimize their marketing and sales…” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: martech integration firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names martech integration firms.
Partial evidence: Its own public description names part of martech integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name martech integration firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 54 martech integration firms based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,194 reachable decision-makers.

Free signup · no credit card

View the full list →

Martech integration firms based in Boston, United States at a glance

As of Sep 28, 2026

48.9%Verified-email coverage

83.0Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 54 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among martech integration firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Boston, United States whose own description of what they do matches “martech integration firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names martech integration firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among martech integration firms, and records with no verified work email. Companies headquartered outside Boston are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,194 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Martech integration firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names martech integration firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many martech integration firms are there based in Boston, United States?

RevenueBase identified 54 martech integration firms headquartered in Boston, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Klaviyo, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most martech integration firms?

New York leads the United States with 187 headquartered companies, followed by Chicago (117) and Miami (87). Boston has 54.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,194 verified decision-maker contacts tracked across these 54 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 54 martech integration firms based in Boston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Martech integration firms by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.