Company lists · Data refreshed November 2026

Top 25 Offshore permitting consultants based in the United States

RevenueBase identified 248 company matches for offshore permitting consultants associated with the United States as of November 2026 and tracks 2,472 professional contacts across them, including 1,071 with verified work emails. Houston is the largest hub.

This list covers company matches for offshore permitting consultants 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 November 6, 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 Nov 6, 2026 How this list was built
248Companies
2,472Contacts tracked
1,071Verified emails
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The 25 largest offshore permitting consultants based in the United States

Ranked by team size
Top 25 of 248 company matches for offshore permitting consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTyler, TX, United StatesHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchChicago, IN, United StatesHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“Founded upon a vision of challenging and changing the energy infrastructure to help light up the world, KDM specializes in engineering consulting and design, program and project…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMustang, OK, United StatesHQ recorded Nov 6, 2026201-500101 contacts →

Exact match

“Plaster & Wald Consulting Corp has provided engineering and consulting services to the oil & gas industry since 1997.Our supervisors provide technical expertise in well planning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMaynard, MA, United StatesHQ recorded Nov 6, 202651-20085 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLafayette, TX, United StatesHQ recorded Nov 6, 202611-5079 contacts →

Exact match

“March 21, 2023, marked an important milestone for Stokes & Spiehler.a half century serving the oil & gas industry!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTexas, LA, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Altamira is a leading engineering and environmental consulting company specializing in regulatory compliance, strategic advising and digital solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLakewood, ID, United StatesHQ recorded Nov 6, 202611-5070 contacts →

Exact match

“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“RCP is the regulatory compliance and risk management expert for pipelines, facilities, and terminal operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWinnie, TX, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Accent Compliance, LLC (Accent) is a Federally Certified Women- Owned Small Business (WOSB), Historically Underutilized Business (HUB), Disadvantage Business Enterprise (DBE) and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Quandary Consultants, LLC (QC) is an environmental and regulatory consulting company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“The Company J.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMesa, AZ, United StatesHQ recorded Nov 6, 2026501-1,00043 contacts →

Exact match

“Energy Environmental Group (EEG) is a full-service environmental consulting firm specializing in all aspects of environmental permitting, inspection, and compliance monitoring.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDenver, TX, United StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“TCO Land & Regulatory has been advancing the energy sector as a trusted partner for nearly 70 years, offering exceptional land services, project management, and energy compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSanta Monica, CA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHumble, TX, United StatesHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“The WCM Group is a team of environmental consultants, engineers and experienced professionals dedicated to helping businesses navigate the environmental regulatory landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCovington, LA, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Offshore Technical Compliance is rapidly positioning itself as the global offshore industry’s leader in supplying compliance-related services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLongview, WA, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Ecological Land Services, Inc.(ELS) provides high-quality environmental consulting and permitting, specializing in projects involving wetlands, streams, wildlife, habitat, and ESA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGretna, LA, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“TECHNICAL ENGINEERING CONSULTANTS, LLC (TEC) is a full service consulting engineering firm, established in 1984 to provide engineering and associated services to the oil and gas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchEl Segundo, CA, United StatesHQ recorded Nov 6, 202611-5028 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBuffalo, WY, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Absaroka Energy and Environmental Solutions, LLC is regulatory compliance and permitting consultancy operating in the Rocky Mountain region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchFort Washington, PA, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Landcore serves as a trusted consultant and site design/permitting expert to private land developers throughout the Mid-Atlantic region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMonterey, CA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“DD & A is an award-winning, State of California-certified Small and Woman-owned business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLafayette, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“HOS Resources is a Lafayette, Louisiana-based energy consulting company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 248 offshore permitting consultants based in the United States

See the full list, filter by size, metro and specialty, and access 1,071 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore permitting consultants based in the United States at a glance

As of Nov 6, 2026
43.3%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
12.9%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
79
51-200
16
201-500
2
501-1,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 248 companies.

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 “offshore permitting consultants” 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 1,071 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 November 6, 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.

Offshore permitting consultants by metro

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 “offshore permitting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore permitting consultants are there based in the United States?

RevenueBase identified 248 company matches for offshore permitting consultants associated with the United States as of November 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?

SDS Petroleum Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most offshore permitting consultants?

Houston leads with 32 company records, followed by Denver (5) and San Diego (5).

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 1,071 professional contacts with verified work emails tracked across these 248 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 November 6, 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.