Company lists · Data refreshed October 2026

Top 25 Engineering & surveying instrument suppliers based in the United States

Name: Engineering & surveying instrument suppliers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 221 companies tracked

RevenueBase identified 221 company matches for engineering & surveying instrument suppliers associated with the United States as of October 2026 and tracks 2,189 professional contacts across them, including 954 with verified work emails. Houston is the largest hub.

This list covers company matches for engineering & surveying instrument suppliers 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 October 25, 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 Oct 25, 2026 How this list was built

221Companies

2,189Contacts tracked

954Verified emails

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The 25 largest engineering & surveying instrument suppliers based in the United States

Ranked by team size

Top 25 of 221 company matches for engineering & surveying instrument suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	Duncan-Parnell INC	Exact match	Charlotte, NC, United StatesHQ recorded Oct 25, 2026	201-500	235 contacts →
	Exact match “Since 1946, Duncan-Parnell has been the trusted supplier to architects, engineers, construction contractors, surveyors, and designers.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Allterra Central, INC	Exact match	Austin, TX, United StatesHQ recorded Oct 25, 2026	51-200	107 contacts →
	Exact match “AllTerra Central is a leading provider of advanced geospatial and positioning technologies, empowering professionals across surveying, construction, mapping/GIS, forensics, and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Geokon	Exact match	Lebanon, NH, United StatesHQ recorded Oct 25, 2026	51-200	100 contacts →
	Exact match “GEOKON is a recognized world leader in the manufacture of geotechnical and structural instrumentation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	California Surveying & Drafting Supply, Inc. Csds	Exact match	Sacramento, CA, United StatesHQ recorded Oct 25, 2026	51-200	83 contacts →
	Exact match “California Surveying & Drafting Supply, Inc.(CSDS) is an innovative equipment supplier offering a complete range of products, service, training and support throughout California.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Project Associates, INC	Exact match	Evansville, IN, United StatesHQ recorded Oct 25, 2026	51-200	71 contacts →
	Exact match “For 40 years Project Associates has been providing multi-disciplined engineering design services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	Brunson Instrument Company	Exact match	Kansas City, MO, United StatesHQ recorded Oct 25, 2026	51-200	64 contacts →
	Exact match “Brunson Instrument Company engineers, manufactures and markets portable measurement and alignment solutions for high precision industrial applications.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	Precision Laser & Instrument, INC	Exact match	Ambridge, PA, United StatesHQ recorded Oct 25, 2026	51-200	53 contacts →
	Exact match “Welcome to Precision Laser & Instrument, Inc, a distributor of Trimble surveying equipment, instruments, and accessories.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Transit And Level Clinic	Exact match	Cary, NC, United StatesHQ recorded Oct 25, 2026	11-50	48 contacts →
	Exact match “Transit and Level Clinic has eight locations including Cary, NC, Greensboro, NC, Charlotte, NC, Black Mountain, NC, Greenville, SC, Birmingham, AL, Midlothian, VA and Nashville…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	DGT Associates	Exact match	Boston, MA, United StatesHQ recorded Oct 25, 2026	11-50	48 contacts →
	Exact match “DGT Associates is New England’s premier surveying and engineering firm.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	Benchmark Tool & Supply	Exact match	Raleigh, NC, United StatesHQ recorded Oct 25, 2026	51-200	42 contacts →
	Exact match “An industry leader for construction and surveying equipment, supplies & more.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	G4 Geomatic Resources	Exact match	San Antonio, TX, United StatesHQ recorded Oct 25, 2026	11-50	37 contacts →
	Exact match “At G4 Geomatic Resources, we have a proven reputation for offering the best support and service in Texas.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Keystone Precision Solutions	Exact match	Allentown, PA, United StatesHQ recorded Oct 25, 2026	11-50	35 contacts →
	Exact match “Keystone Precision Support was founded in 1989.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Terrawise Solutions	Exact match	Mcdonough, GA, United StatesHQ recorded Oct 25, 2026	11-50	31 contacts →
	Exact match “Welcome!” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Kuker-Ranken INC	Exact match	Mountlake Terrace, WA, United StatesHQ recorded Oct 25, 2026	11-50	31 contacts →
	Exact match “Kuker-Ranken Incorporated has been a provider of Architectural, Engineering, Construction, Survey Equipment and Supplies Since 1928.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Earl Dudley, LLC	Exact match	Birmingham, AL, United StatesHQ recorded Oct 25, 2026	51-200	28 contacts →
	Exact match “Since 1938, Earl Dudley, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Quiver League	Exact match	Brooklyn, United StatesHQ recorded Oct 25, 2026	51-200	28 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 · Oct 25, 2026 · View company records in RevenueBase
17	NEW York Geomatics INC	Exact match	Long Island City, NY, United StatesHQ recorded Oct 25, 2026	11-50	27 contacts →
	Exact match “WE ARE AN EQUAL OPPORTUNITY EMPLOYER Surveyor New York Geomatics is a small boutique surveying firm, which specializes in specialty surveying techniques for specific high…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	Lengemann Corporation	Exact match	Altoona, FL, United StatesHQ recorded Oct 25, 2026	11-50	25 contacts →
	Exact match “About Us – Lengemann Corporation Florida’s Premier Dealer for Topcon Layout, Surveying & Construction Technology Lengemann Corporation is a trusted partner for construction…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Monsen Engineering	Exact match	Salt Lake City, UT, United StatesHQ recorded Oct 25, 2026	11-50	24 contacts →
	Exact match “Monsen Engineering is the leading supplier of surveying products, mapping and geographic information systems, and other high-quality measurement solutions for the design/build…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	THD Design Group INC	Exact match	Chesterfield, MO, United StatesHQ recorded Oct 25, 2026	11-50	24 contacts →
	Exact match “THD Design Group is very proud to be a company that prides itself on team work among our employees and the special bond we share with our clients.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Badey & Watson, Surveying & Engineering, D.P.C	Exact match	Cold Spring, NY, United StatesHQ recorded Oct 25, 2026	11-50	22 contacts →
	Exact match “Badey & Watson offers services in most areas of surveying, mapping and civil engineering, including: land surveying; topographic mapping; laser scanning; geodetic control…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	Berntsen International, INC	Exact match	Madison, WI, United StatesHQ recorded Oct 25, 2026	11-50	22 contacts →
	Exact match “Berntsen International, Inc, Madison, WI, has been “Marking the Infrastructure of the World” since 1972 as the leading manufacturer of customized marking products for land…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Seco Precision	Exact match	Redding, CA, United StatesHQ recorded Oct 25, 2026	501-1,000	22 contacts →
	Exact match “A leading manufacturer of accessories for land surveying, global positioning system, construction, monitoring, and agriculture equipment, SECO engineers products to make…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	FLT Geosystems A Division Of Florida Level & Transit CO	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Oct 25, 2026	11-50	21 contacts →
	Exact match “FLT Geosystems: A Division of Florida Level & Transit Company has been the servicing the surveying industry with instruments and supplies since 1956.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	AAB Engineering	Exact match	Sand Springs, OK, United StatesHQ recorded Oct 25, 2026	1-10	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 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 “engineering & surveying instrument suppliers”. 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 221 engineering & surveying instrument suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 954 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering & surveying instrument suppliers based in the United States at a glance

As of Oct 25, 2026

43.6%Verified-email coverage

9.9Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · Houston

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

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 221 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 “engineering & surveying instrument suppliers” 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 954 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 October 25, 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 “engineering & surveying instrument suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering & surveying instrument suppliers are there based in the United States?

RevenueBase identified 221 company matches for engineering & surveying instrument suppliers associated with the United States as of October 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?

Duncan-Parnell INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most engineering & surveying instrument suppliers?

Houston leads with 5 company records, followed by Austin (4) and Lynchburg (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 954 professional contacts with verified work emails tracked across these 221 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 October 25, 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.