Company lists · Data refreshed September 2026

Top 25 Complex deal management consultants based in New York, United States

RevenueBase identified 87 complex deal management consultants headquartered in New York, United States as of September 2026 and tracks 1,115 professional contacts across them, including 604 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers complex deal management consultants headquartered in New York, 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 27, 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 27, 2026 86% judged on-target in blind review
87Companies
1,115Contacts tracked
604Verified emails
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The 25 largest complex deal management consultants based in New York, United States

Ranked by team size
Top 25 of 87 complex deal management consultants based in New York, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to complex deal management consultants: 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
1Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 2026501-1,000765 contacts →

Strong evidence

“The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-20023 contacts →

Indirect evidence

“VISTRADA partners with clients to find, plan, and deliver solutions that generate revenue, streamline costs, and manage risk.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5021 contacts →

Partial evidence

“Complex contract disputes.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5020 contacts →

Indirect evidence

“Overview Robinhill is a sage team of former professional services partners and industry executives providing high ROI through a collaborative and efficient deployment model.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5018 contacts →

Partial evidence

“We are a management consulting firm that delivers value through knowledge and innovation.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-1015 contacts →

Partial evidence

“SIREAS is an independent and innovative management consulting firm that specializes in helping corporate real estate and facilities management organizations deliver world-class…”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-107 contacts →

Partial evidence

“Our company is dedicated to advising clients on managing complex, high-profile construction projects, with a focus on meeting or exceeding timeline and budget goals.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

“Sigma Ridge is a spinoff from the Harvard University Graduate Consulting Club.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“FERZANCOMPANY is an organization which provides strategic development, program, implementation, and project consulting services to the larger real estate community, including…”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Lex Moderna | Expert Contract Negotiators | Unmatched Speed In today’s competitive and fast-paced business environment, negotiating contracts with precision and efficiency is…”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“For over 10 years, Oracle Advisory Services, LLC (OAS) has provided high-quality financial and management services to a diverse and successful client base.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“Big solutions for small businesses".”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Amax Capital's raison d’etre is to help mid-size clients and deals access top-quality advice and connectivity to global corporates and investor pools.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-2003 contacts →

Indirect evidence

“Canopach provides solutions-oriented results with our sharp and experienced professionals.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-503 contacts →

Indirect evidence

“We understand that limited time and budgets are things that can hurt your projects.”

Source: RevenueBase Database · checked Sep 27, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-502 contacts →

Strong evidence

“Above PAR Advisors is a strategy, execution, and transformation consultancy specializing in change management.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

“DSGN provides high-end design services from concept to fruition, addressing the bespoke needs of clients and implementing fully-integrated turn-key design solutions needed to…”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Consulting firm which provides legal expertise to resolve complex business issues.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

“At Neil Miller Consulting we believe that your success is our business.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceNew York, United StatesHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Management Consulting”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

“VNV Consulting Group offers a multi-point plan to help business’ achieve their primary objective.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceNew York, United StatesHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“Pivotal is a niche consulting & services firm leveraging proven best practices to support organizations in unlocking potential opportunities to optimize and transform.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“We find that One Smart Thing which-when changed-makes all the difference.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“Committed to Excellence At Mariana Everest Capital Consultants, we understand that business is not always easy.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 87 complex deal management consultants based in New York, United States

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Complex deal management consultants based in New York, United States at a glance

As of Sep 27, 2026
54.2%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
22
51-200
3
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 87 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 complex deal management consultants, 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 New York, United States whose own description of what they do matches “complex deal management consultants”. 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 complex deal management consultants), 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 complex deal management consultants, and records with no verified work email. Companies headquartered outside New York 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, 604 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 27, 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.

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 complex deal management consultants, 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 complex deal management consultants are there based in New York, United States?

RevenueBase identified 87 complex deal management consultants headquartered in New York, 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?

The Vertex Companies LLC, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most complex deal management consultants?

New York leads the United States with 87 headquartered companies, followed by Houston (73) and Washington (71).

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 604 verified decision-maker contacts tracked across these 87 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 27, 2026.

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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.