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Company lists · Data refreshed September 2026

Top 12 B2B consultancies based in Westport, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 30 companies tracked

RevenueBase identified 30 B2B consultancies headquartered in Westport, United States as of September 2026 and tracks 1,939 professional contacts across them, including 149 with verified work emails. New York is the largest hub.

This list covers B2B consultancies headquartered in Westport, 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 23, 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 23, 2026 86% judged on-target in blind review
30Companies
1,939Contacts tracked
149Verified emails
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The 12 largest B2B consultancies based in Westport, United States

Ranked by team size
Top 12 of 30 B2B consultancies based in Westport, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B consultancies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
MCA
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 2026n/a1,650 contacts →

Indirect evidence

“MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.”

Source: RevenueBase Database · checked Sep 23, 2026
2
Zaelab
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 2026201-500183 contacts →

Indirect evidence

“Zaelab is a highly-skilled and trusted digital partner.”

Source: RevenueBase Database · checked Sep 23, 2026
3
Tenrecx
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

“At TenrecX, we ensure our clients the most direct route to acquiring, implementing, and scaling premium solutions from the world's leading technology providers.”

Source: RevenueBase Database · checked Sep 23, 2026
4
ARIZE
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-1010 contacts →

Indirect evidence

“Offering a comprehensive array of services, Arize brings a wealth of domestic and international experience in both large and small scale business ventures.”

Source: RevenueBase Database · checked Sep 23, 2026
5
PTX Partners
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-105 contacts →

Indirect evidence

“PTX is a technology consulting firm that deploys seasoned, multi-disciplined resources to drive our clients projects.”

Source: RevenueBase Database · checked Sep 23, 2026
6
Bizmark
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 202611-504 contacts →

Indirect evidence

“BizMark drives business to business.”

Source: RevenueBase Database · checked Sep 23, 2026
7
Birkdale Partners
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-103 contacts →

Indirect evidence

“Birkdale Partners is a full service, boutique management consultancy founded in 2018 by Andy Fennell, a McKinsey alum who set out to reframe the way we approach management…”

Source: RevenueBase Database · checked Sep 23, 2026
8
Epic 47
Indirect evidenceWestport, MA, United StatesHQ checked Sep 23, 202611-502 contacts →

Indirect evidence

“EPIC Mamas | EPIC 47 is a compilation of businesses.”

Source: RevenueBase Database · checked Sep 23, 2026
9
Accucom Consulting
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 202611-502 contacts →

Indirect evidence

“Focusing on the applications that build and expand businesses allows Accucom Consulting to forge alliances with ideal industry software and hardware leaders.”

Source: RevenueBase Database · checked Sep 23, 2026
10
Lift Strategic Partners, LLC
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“We help you execute focused strategies and develop meaningful partnerships, boosting your bottom line and growing your network.”

Source: RevenueBase Database · checked Sep 23, 2026
11
E5 Dynamic Growth Solutions LLC
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“E5 Dynamic Growth Solutions is a strategic advisory firm dedicated to empowering executives and businesses in crafting and implementing strategic plans that drive sustainable…”

Source: RevenueBase Database · checked Sep 23, 2026
12
Uplevel Marketing Group
Indirect evidenceWestport, CT, United StatesHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“UpLevel Marketing Group is a boutique digital marketing consultancy helping business owners and consultants increase their online presence to grow their business and take market…”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 12 of 30 B2B consultancies based in Westport, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 149 reachable decision-makers.

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B2B consultancies based in Westport, United States at a glance

As of Sep 23, 2026
7.7%Verified-email coverage
64.6Average contacts per company
1-10Median size (employees)
7220.0%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
6
51-200
2
201-500
1

Email recency for this list is measured across the whole United States list rather than for Westport, so it is reported there. Company counts and contact totals on this page are exact for Westport, over 30 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 B2B consultancies, 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 Westport, United States whose own description of what they do matches “B2B consultancies”. 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 B2B consultancies), 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 B2B consultancies, and records with no verified work email. Companies headquartered outside Westport 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, 149 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 23, 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.

B2B consultancies 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 B2B consultancies, 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 B2B consultancies are there based in Westport, United States?

RevenueBase identified 30 B2B consultancies headquartered in Westport, 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?

MCA, headquartered in Westport, tops this list with the largest team on record.

Which city has the most B2B consultancies?

New York leads with 2166 headquartered companies, followed by Chicago (1073) and Atlanta (1033).

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 149 verified decision-maker contacts tracked across these 30 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 23, 2026.

Ready to reach these companies? Verified emails and direct dials for all 30 B2B consultancies based in Westport, United States. Start with a free account, no credit card.

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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.

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