Company lists · Data refreshed November 2026

Top 25 Electromagnetic survey services based in the United States

RevenueBase identified 260 company matches for electromagnetic survey services associated with the United States as of November 2026 and tracks 3,922 professional contacts across them, including 1,426 with verified work emails. Houston is the largest hub.

This list covers company matches for electromagnetic survey services 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
260Companies
3,922Contacts tracked
1,426Verified emails
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The 25 largest electromagnetic survey services based in the United States

Ranked by team size
Top 25 of 260 company matches for electromagnetic survey services 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 matchBenbrook, CO, United StatesHQ recorded Nov 6, 2026201-500368 contacts →

Exact match

“What began as a small company in the oilfields of Southern Oklahoma, today Topographic Land Surveyors stands as the industry leader in the fields of Surveying, Mapping…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchColorado Springs, FL, United StatesHQ recorded Nov 6, 202651-200270 contacts →

Exact match

“The Sanborn Map Company Inc.(Sanborn) is an innovator in the modern geospatial industry, delivering state-of-the-art mapping, visualization and 3D solutions for customers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchFayetteville, NC, United StatesHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“BLEW is your nationwide partner for land surveying, civil engineering, environmental and property assessments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 2026201-500179 contacts →

Exact match

“Transglobal Services, LLC (TGS) provides surveying, land services, GIS, mapping, and environmental services to the construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 20265,001-10,000177 contacts →

Exact match

“SENTEL, a wholly owned subsidiary of Vectrus Systems Corporation was founded in 1987 as an engineering company, supporting the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTampa, FL, United StatesHQ recorded Nov 6, 2026201-500123 contacts →

Exact match

“One of the largest privately owned land surveying companies in Florida, GeoPoint provides standard-setting services including subsurface utility location, 811 locating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNashua, NH, United StatesHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“Geophysical Survey Systems, Inc.(GSSI) is the world leader in the development of ground penetrating radar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLakewood, CO, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Electro Magnetic Applications, Inc.(EMA) is a leader in electromagnetic simulation, testing, and consulting for aerospace, defense, automotive, and electronics industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBridgewater, NJ, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Summit is a trusted leader in environmental industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchReno, NV, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Minerals / Geothermal / Groundwater / Petroleum / Environmental / Infrastructure Are you concerned about ensuring every opportunity for success for your project and stakeholders?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWichita, KS, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Empowering geoscientists everywhere to explore and quantify the world since 1969.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNew London, AZ, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Our goal is to provide cost-effective, reliable, state-of-the-art data collection and information systems to a broad market range, including civil engineering, geotechnical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNorwood, NJ, United StatesHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchStandish, MI, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Surveying Solutions, Inc.(SSI) is a Michigan-based consulting firm specializing in providing a full range of surveying services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchOld Saybrook, CT, United StatesHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“OSI is a highly responsive hydrographic, geophysical, physical oceanographic surveying and sediment sampling firm staffed with scientists, hydrographers, engineers, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPalmer, AK, United StatesHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“Provider of professional surveying services throughout the world safely, effectively, and economically.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“1 Alliance Geomatics, LLC (1 Alliance) is a professional land surveying and mapping firm providing construction surveying, engineering design mapping, and settlement monitoring…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBirch River, WV, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Originally founded in 1988 in Birch River, West Virginia, Allegheny Surveys, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBrooklyn, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“At Quiver League, we provide geotechnical and structural instrumentation, monitoring, and land surveying services for complex construction projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKaty, TX, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Operations for the land exploration industry - Discovery Acquisition Services provides a range of seismic services delivering a complete geophysical service operation including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchManassas, VA, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“HV TECHNOLOGIES, Inc.(HVT) is a prominent supplier of High Voltage and EMC Test Equipment and solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCharlottesville, VA, United StatesHQ recorded Nov 6, 202651-20025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGreenville, NC, United StatesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“About LBA Group Inc.”

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

Showing 25 of 260 electromagnetic survey services based in the United States

See the full list, filter by size, metro and specialty, and access 1,426 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electromagnetic survey services based in the United States at a glance

As of Nov 6, 2026
36.4%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
5.4%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
147
11-50
71
51-200
30
201-500
10
501-1,000
1
5,001-10,000
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 260 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 “electromagnetic survey services” 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 1,426 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.

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 “electromagnetic survey services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electromagnetic survey services are there based in the United States?

RevenueBase identified 260 company matches for electromagnetic survey services 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?

Topographic, CO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electromagnetic survey services?

Houston leads with 14 company records, followed by Reno (6) and Austin (4).

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 1,426 professional contacts with verified work emails tracked across these 260 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.

Ready to reach these companies? Verified emails and direct dials for all 260 electromagnetic survey services based in the 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 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.