Company lists · Data refreshed September 2026

Top 25 Prompt engineering services companies based in the United States

Name: Prompt engineering services companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 719 companies tracked

RevenueBase identified 719 company matches for prompt engineering services companies associated with the United States as of September 2026 and tracks 12,114 professional contacts across them, including 4,351 with verified work emails. Houston is the largest hub.

This list covers company matches for prompt engineering services companies 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 17, 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 17, 2026 How this list was built

719Companies

12,114Contacts tracked

4,351Verified emails

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

The 25 largest prompt engineering services companies based in the United States

Ranked by team size

Top 25 of 719 company matches for prompt engineering services companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Recon Management Services, INC	Exact match	Sulphur, LA, United StatesHQ recorded Sep 17, 2026	501-1,000	420 contacts →
	Exact match “ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Sterling Engineering	Exact match	Westchester, IL, United StatesHQ recorded Sep 17, 2026	501-1,000	402 contacts →
	Exact match “Sterling is an award-winning professional engineering consulting and technical staffing company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	M&s Engineering	Exact match	Spring Branch, TX, United StatesHQ recorded Sep 17, 2026	201-500	319 contacts →
	Exact match “Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	C&i Engineering	Exact match	Louisville, KY, United StatesHQ recorded Sep 17, 2026	201-500	313 contacts →
	Exact match “Chemical & Industrial Engineering, Inc.(C&I) is a full-service Engineering, Design & Procurement firm, providing hands-on design expertise for increasing capacity, improving…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Dynamic Engineering Consultants, PC	Exact match	Lake Como, NJ, United StatesHQ recorded Sep 17, 2026	201-500	293 contacts →
	Exact match “Full Service Land Development and Consulting Dynamic Engineering Consultants, PC provides comprehensive Professional Engineering and related services to the Land Development…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Nexus Engineering Group	Exact match	Cleveland, OH, United StatesHQ recorded Sep 17, 2026	201-500	255 contacts →
	Exact match “Nexus Engineering Group is a full-service engineering, procurement, and construction management (EPCm) firm headquartered in Cleveland, Ohio with offices in Toledo, Ohio, Midland…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	BSI Engineering	Exact match	Mason, OH, United StatesHQ recorded Sep 17, 2026	201-500	247 contacts →
	Exact match “BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Waldemar S. Nelson & Co., INC	Exact match	New Orleans, LA, United StatesHQ recorded Sep 17, 2026	201-500	211 contacts →
	Exact match “For over a half century our professional staff - in meeting technical, schedule, budget, and regulatory requirements - has successfully completed projects in the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Krazan & Associates, INC	Exact match	Clovis, CA, United StatesHQ recorded Sep 17, 2026	201-500	197 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Ryzen Solutions	Exact match	San Jose, CA, United StatesHQ recorded Sep 17, 2026	201-500	169 contacts →
	Exact match “Since Ryzen Solutions has become a trusted provider to Silicon Valley’s growing product development community.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Ford, Bacon & Davis, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 17, 2026	501-1,000	161 contacts →
	Exact match “Ford, Bacon & Davis, LLC is a privately owned, multi-discipline Engineering, Procurement and Construction (EPC) company, with 8 offices across the United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Todd & Sargent, INC	Exact match	Ames, IA, United StatesHQ recorded Sep 17, 2026	51-200	144 contacts →
	Exact match “Todd & Sargent is a design-build industrial construction contractor with more than 90 years of experience building the facilities that feed, fuel, and supply the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	KCL Engineering	Exact match	West Des Moines, IA, United StatesHQ recorded Sep 17, 2026	51-200	122 contacts →
	Exact match “Our focus on empowerment, flexibility, and opportunity creates a workplace of happy employees who provide superior customer service, deliver high-quality projects, and delight…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	RPA Engineering	Exact match	Wyomissing, PA, United StatesHQ recorded Sep 17, 2026	51-200	116 contacts →
	Exact match “RPA Engineering is a professional engineering consulting firm offering mechanical, electrical, structural, and automations systems engineering discipline services, including…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	KDM Engineering	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	51-200	114 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 · Sep 17, 2026 · View company records in RevenueBase
16	Mid-South Engineering	Exact match	Hot Springs, AR, United StatesHQ recorded Sep 17, 2026	51-200	111 contacts →
	Exact match “Mid-South Engineering Company was founded in 1969 by four engineers with a common vision - to be a complete engineering service provider focused on total dedication to the client.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Superior Engineering, LLC	Exact match	Hammond, IN, United StatesHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “Since 1962, Superior Engineering has been recognized as a premier provider of professional engineering services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Orion Engineers Constructors	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 17, 2026	51-200	97 contacts →
	Exact match “Orion has the ability to meet your every engineering need from determining the feasibility of your project right through to full EPC, commissioning and startup of industrial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Novus Labs	Exact match	Hillsboro, OR, United StatesHQ recorded Sep 17, 2026	51-200	97 contacts →
	Exact match “Novus Labs is a new kind of solutions provider.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Sloan Global	Exact match	Braintree, MA, United StatesHQ recorded Sep 17, 2026	201-500	97 contacts →
	Exact match “Sloan Global, Inc was founded on the principles of honesty, integrity, and safety.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Specialized Engineering Solutions, INC	Exact match	Omaha, NE, United StatesHQ recorded Sep 17, 2026	51-200	95 contacts →
	Exact match “Specialized Engineering Solutions (SES) is a full-service, specialty, engineering firm providing Mechanical, Electrical, Plumbing, Fire Protection, Technology, Lighting Design…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Select Engineering INC	Exact match	Tulsa, OK, United StatesHQ recorded Sep 17, 2026	51-200	95 contacts →
	Exact match “Select Engineering, Inc, is a privately-held company with offices in Tulsa,OK and Houston,TX.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Gulf States Engineering, INC	Exact match	Mobile, AL, United StatesHQ recorded Sep 17, 2026	51-200	89 contacts →
	Exact match “At Gulf States Engineering, Inc.(GSE), we offer comprehensive services encompassing every stage of an engineering project's life cycle.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Becht Engineering Bt, INC	Exact match	Warren, NJ, United StatesHQ recorded Sep 17, 2026	51-200	85 contacts →
	Exact match “For 60 years, Becht Engineering BT, Inc, has been supporting our “Building Technologies” clientele by providing mechanical, electrical, plumbing, fire protection (MEP & FP)…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Chemstress	Exact match	Akron, OH, United StatesHQ recorded Sep 17, 2026	51-200	81 contacts →
	Exact match “Why Chemstress?” Recorded in the RevenueBase company graph · Sep 17, 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 “prompt engineering services companies”. 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 719 prompt engineering services companies based in the United States

See the full list, filter by size, metro and specialty, and access 4,351 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Prompt engineering services companies based in the United States at a glance

As of Sep 17, 2026

35.9%Verified-email coverage

16.8Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

387

11-50

231

51-200

201-500

501-1,000

1,001-5,000

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 719 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 “prompt engineering services companies” 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 4,351 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 17, 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 “prompt engineering services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many prompt engineering services companies are there based in the United States?

RevenueBase identified 719 company matches for prompt engineering services companies 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?

Recon Management Services, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most prompt engineering services companies?

Houston leads with 30 company records, followed by New York (16) and Miami (11).

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 4,351 professional contacts with verified work emails tracked across these 719 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 719 prompt engineering services companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Prompt engineering services companies by geography

Browse the directory

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.