Company lists · Data refreshed September 2026

Top 17 Engineering and manufacturing consulting firms based in Washington, United States

Name: Engineering and manufacturing consulting firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 39 companies tracked

RevenueBase identified 39 company matches for engineering and manufacturing consulting firms associated with Washington, United States as of September 2026 and tracks 794 professional contacts across them, including 187 with verified work emails. Across the United States, Houston is the largest hub for this category (324 companies); Washington has 39.

This list covers company matches for engineering and manufacturing consulting firms associated with Washington, 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 29, 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 29, 2026 How this list was built

39Companies

794Contacts tracked

187Verified emails

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The 17 largest engineering and manufacturing consulting firms based in Washington, United States

Ranked by team size

Top 17 of 39 company matches for engineering and manufacturing consulting firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	JRC Integrated Systems	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	199 contacts →
	Exact match “JRC Integrated Systems is a systems engineering consulting firm that provides scientific, engineering, and technical expertise to solve complex problems for the Department of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Axiem International	Exact match	Washington, MI, United StatesHQ recorded Sep 29, 2026	201-500	141 contacts →
	Exact match “For more than 18 years, Axiem International has provided the highest quality Engineering deliverables and professionals to the Energy, Aerospace, Automotive & Industrial…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Veracity Engineering	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	80 contacts →
	Exact match “Since 2001, Veracity Engineering has been successful in building, growing, and performing on a portfolio of technically challenging engineering and program management engagements…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Delon Hampton & Associates, Chartered	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	72 contacts →
	Exact match “Delon Hampton & Associates, Chartered (DHA), is a professional consulting engineering firm specializing in civil and structural engineering, as well as program and construction…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Jackson And Tull	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	201-500	47 contacts →
	Exact match “Jackson and Tull is an award-winning engineering services and advanced technology company headquartered in Washington DC.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Carver Machine Works, INC	Exact match	Washington, NC, United StatesHQ recorded Sep 29, 2026	51-200	30 contacts →
	Exact match “Carver Machine Works (CMW Global) is an engineering centered machine shop and metal fabrication services provider.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	SZ PM Consultants, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Phaedrus Engineering	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	23 contacts →
	Exact match “Phaedrus is a small engineering company located in the DC Metro Area, serving the DoD, academia, and private sector with professional skills for design, architecture, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Bfa, INC	Exact match	Washington, MO, United StatesHQ recorded Sep 29, 2026	11-50	19 contacts →
	Exact match “BFA is a consulting civil engineering firm located in downtown Washington, Missouri.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Prototech	Exact match	Washington, NC, United StatesHQ recorded Sep 29, 2026	51-200	12 contacts →
	Exact match “ProtoTech is a comprehensive composite engineering and manufacturing company that can carry a project from initial concepts through product development & engineering, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	DRM International, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	7 contacts →
	Exact match “DRM International, Inc,(DRM) is a leading DIsadvantaged Business Enterprise (DBE) professional engineering consulting firm offering engineering, architectural, planning…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	OAK Ridge Industries	Exact match	Washington, NC, United StatesHQ recorded Sep 29, 2026	51-200	6 contacts →
	Exact match “Oak Ridge is your turn key solution for engineering projects, millwright work, facilities services, automated lines, reverse engineering and any type of metal fabrication.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Grotheer & CO	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	5 contacts →
	Exact match “GROTHEER & CO, a small business located in Washington, DC, has been practicing professional engineering since 1954, and has completed thousands of projects for local and federal…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	FREJA	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	3 contacts →
	Exact match “FREJA (fray \| ah) is a provider of consulting and project management services for clients with unique mission sets in the areas of construction, defense, and aerospace.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	The Impact Group, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	2 contacts →
	Exact match “The Impact Group, LLC supports the mission and strategic goals of our customers in Engineering, Construction, and Information Technology.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Your Solution Architect	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Helping build better companies by architecting better foundations thru defining structural processes and implementing the correct tools to make it happen.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	RI Engineering, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Engineering Consultation \| Building Commissioning \| Inspections \| Subject Matter Expertise DSLBD CBE Certified (12 Preference Points) MDOT Certified Certification#…” Recorded in the RevenueBase company graph · Sep 29, 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 and manufacturing 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 17 of 39 engineering and manufacturing consulting firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 187 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering and manufacturing consulting firms based in Washington, United States at a glance

As of Sep 29, 2026

23.6%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 39 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 Washington, United States whose business descriptions match “engineering and manufacturing 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 187 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 29, 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.

Engineering and manufacturing consulting firms by metro in the United States

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 and manufacturing consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering and manufacturing consulting firms are there based in Washington, United States?

RevenueBase identified 39 company matches for engineering and manufacturing consulting firms associated with Washington, 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?

JRC Integrated Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most engineering and manufacturing consulting firms?

Houston leads the United States with 324 company records, followed by New York (187) and Chicago (130). Washington has 39.

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 187 professional contacts with verified work emails tracked across these 39 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 29, 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.