Company lists · Data refreshed September 2026

Top 25 Maritime compliance consulting firms based in the United States

Name: Maritime compliance consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 519 companies tracked

RevenueBase identified 519 company matches for maritime compliance consulting firms associated with the United States as of September 2026 and tracks 5,687 professional contacts across them, including 1,579 with verified work emails and 2,078 with mobile numbers. Houston is the largest hub.

This list covers company matches for maritime compliance consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built

519Companies

5,687Contacts tracked

1,579Verified emails

2,078Mobile numbers

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

The 25 largest maritime compliance consulting firms based in the United States

Ranked by team size

Top 25 of 519 company matches for maritime compliance consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Leidos Gibbs & COX	Exact match	Arlington, VA, United StatesHQ recorded Sep 5, 2026	201-500	394 contacts →
	Exact match “Leidos Gibbs & Cox is an engineering and design firm specializing naval architecture, marine engineering, and consulting engineering.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	Drew Marine	Exact match	Waterbury, CT, United StatesHQ recorded Sep 5, 2026	201-500	304 contacts →
	Exact match “Drew Marine is a global leader in maritime water treatment, fuel management, refrigerant compliance, cleaning solutions, and technical services trusted by ship owners, operators…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	CGI Coastal Gulf & International	Exact match	Saint Rose, LA, United StatesHQ recorded Sep 5, 2026	201-500	130 contacts →
	Exact match “Since 1978, Coastal Gulf & International, Inc.(CGI) has been a trusted leader in independent inspection, testing, and technical services for the energy, petrochemical, and marine…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	International Register Of Shipping	Exact match	Miami, FL, United StatesHQ recorded Sep 5, 2026	51-200	112 contacts →
	Exact match “Established in 1993, the International Register of Shipping (INTLREG) is an independent classification society working with the objective of safeguarding life, property and the…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Glosten	Exact match	Seattle, WA, United StatesHQ recorded Sep 5, 2026	51-200	104 contacts →
	Exact match “Glosten is a full-service naval architecture and marine engineering consultancy with over 65 years of experience successfully taking on one-of-a-kind marine projects.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Terminal Security Solutions, INC	Exact match	Long Beach, CA, United StatesHQ recorded Sep 5, 2026	501-1,000	103 contacts →
	Exact match “TSS is a private security firm specializing in customer service, partnership focused cruise terminal, cargo facility and port authority security services, as well as crew…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	Mcquilling Partners, INC	Exact match	New York, NY, United StatesHQ recorded Sep 5, 2026	51-200	96 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	BC Service	Exact match	Miami, FL, United StatesHQ recorded Sep 5, 2026	51-200	90 contacts →
	Exact match “BC Service has been committed to Safety of Life at Sea for over 70 years as an LSA Service Provider and Manufacturer; besides its lead role in LSA, BC Service continues to develop…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	Thomas Quinn, LLP	Exact match	San Francisco, CA, United StatesHQ recorded Sep 5, 2026	11-50	89 contacts →
	Exact match “Thomas Quinn, LLP is founded on the principles of honesty and accountability.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Moran Shipping Agencies	Exact match	Providence, RI, United StatesHQ recorded Sep 5, 2026	51-200	87 contacts →
	Exact match “Moran Shipping Agencies, Inc is a family owned business that began operations in 1937 and has since grown to become the largest privately owned vessel agency in the United States.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	BSI Consulting	Exact match	Herndon, VA, United StatesHQ recorded Sep 5, 2026	1,001-5,000	84 contacts →
	Exact match “BSI Consulting offers comprehensive world-class solutions in environmental, health, safety (EHS), supply chain security, and sustainability.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Cummins Cederberg	Exact match	Coral Gables, FL, United StatesHQ recorded Sep 5, 2026	51-200	82 contacts →
	Exact match “Cummins Cederberg is a leader in coastal and marine engineering, delivering solutions for some of the most complex and high-impact waterfront projects.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Elliott BAY Design Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 5, 2026	51-200	80 contacts →
	Exact match “Elliott Bay Design Group (EBDG) is a full-service, employee-owned naval architecture and marine engineering firm that supports owners, operators and shipyards.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Baker Marine Solutions, LLC	Exact match	Covington, LA, United StatesHQ recorded Sep 5, 2026	11-50	76 contacts →
	Exact match “Baker Marine Solutions is a leading provider of marine assurance, engineering and consulting services, performing DP assurance, OCIMF- OVID inspections, IMCA CMID inspections…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	Capital Ship Solutions - CSS	Exact match	Miami, FL, United StatesHQ recorded Sep 5, 2026	51-200	64 contacts →
	Exact match “Capital Ship Solutions provides expert Technical, Engineering and Management Consultancy for diverse stakeholders in the Shipping and Offshore sectors.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	Athens Group Services	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	11-50	56 contacts →
	Exact match “Athens Group Services is a comprehensive global provider of performance and safety assurance services to assist the offshore energy and marine industries design, construct, and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Entrion	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	51-200	55 contacts →
	Exact match “Entrion provides value-driven services and support that resolve equipment safety and quality challenges in the offshore industry to manufacturers, drilling contractors, and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	Maritech Commercial	Exact match	Kenner, LA, United StatesHQ recorded Sep 5, 2026	51-200	52 contacts →
	Exact match “MARiTECH Commercial, LLC and its subsidiary companies and partners provide maritime consultancy services to maximize value and minimize lost time for clients.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	Hepburn And Sons LLC	Exact match	Manassas, VA, United StatesHQ recorded Sep 5, 2026	51-200	52 contacts →
	Exact match “Founded in 2010, Hepburn and Sons LLC, in the Commonwealth of Virginia as an S-Corp Small Business, our focus is in naval engineering and architecture.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	Gallagher Marine Systems - LLC	Exact match	Moorestown Township, NJ, United StatesHQ recorded Sep 5, 2026	51-200	49 contacts →
	Exact match “Gallagher Marine Systems (GMS) is the industry’s most comprehensive source of full-service, in-depth, compliance support.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	Alliance Infinite	Exact match	New York, United StatesHQ recorded Sep 5, 2026	1,001-5,000	48 contacts →
	Exact match “Alliance Infinite has consistently maintained its position among the world’s very best quality service providers for Third Party Inspection, Testing, Calibration and Management…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22	Ergonav Group	Exact match	New York, United StatesHQ recorded Sep 5, 2026	501-1,000	45 contacts →
	Exact match “ERGONAV GROUP is an International privately-owned Corporation active in the Maritime Sector, focusing on Environmental Testing & Inspections.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	TBS Safety	Exact match	Daphne, AL, United StatesHQ recorded Sep 5, 2026	11-50	45 contacts →
	Exact match “TBS Safety is your trusted partner in building safer, stronger operations across the maritime industry and beyond.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	Sabine Surveyors, LTD	Exact match	Metairie, LA, United StatesHQ recorded Sep 5, 2026	51-200	41 contacts →
	Exact match “Since 1968, Sabine Surveyors has provided the maritime industry with a wide array of services through our highly trained, educated, competent, and dedicated staff of marine…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	J Connor Consulting, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 5, 2026	51-200	39 contacts →
	Exact match “The Company J.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “maritime compliance consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 519 maritime compliance consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,579 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Maritime compliance consulting firms based in the United States at a glance

As of Sep 5, 2026

27.8%Verified-email coverage

36.5%Mobile-number coverage

11.0Average contacts per company

1-10Median size (employees)

7.3%Largest-city concentration · Houston

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

318

11-50

145

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,4630–30

10231–60

061–90

090–180

14180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “maritime compliance consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,579 professional contacts with verified work emails across the full matched dataset. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Maritime compliance consulting firms by metro

Maritime compliance consulting firms in Houston38

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “maritime compliance consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many maritime compliance consulting firms are there based in the United States?

RevenueBase identified 519 company matches for maritime compliance consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Leidos Gibbs & COX tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most maritime compliance consulting firms?

Houston leads with 38 company records, followed by Miami (24) and Fort Lauderdale (19).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,579 professional contacts with verified work emails tracked across these 519 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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 SmartSearch, 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.