Company lists · Data refreshed November 2026
Top 25 Engineering and prototyping firms based in the United States
RevenueBase identified 3,708 company matches for engineering and prototyping firms associated with the United States as of November 2026 and tracks 39,493 professional contacts across them, including 11,400 with verified work emails. San Diego is the largest hub.
This list covers company matches for engineering and prototyping firms 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.
The 25 largest engineering and prototyping firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,030 contacts → | ||||
Exact match “ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,018 contacts → | ||||
Exact match “Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 604 contacts → | ||||
Exact match “FM Industries, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 528 contacts → | ||||
Exact match “Raja Software Labs (RSL) is a product engineering company helping clients ship high volume, high impact products used by millions of users.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 493 contacts → | ||||
Exact match “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 465 contacts → | ||||
Exact match “Specializing in low-volume manufacturing that Tier 1 suppliers avoid, we offer complete program management under one roof, including emergency tooling and parts, large program…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 362 contacts → | ||||
Exact match “When clients come to us for product design and development, they get a full range of technical expertise and laboratory resources, but they also get a team that’s relentless when…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 344 contacts → | ||||
Exact match “Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 338 contacts → | ||||
Exact match “MARTECH® MEDICAL PRODUCTS, INC.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 316 contacts → | ||||
Exact match “Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 312 contacts → | ||||
Exact match “Columbia Tech provides engineering design, manufacturing, global fulfillment and aftermarket services to innovation leaders in the life-science, pharmaceutical, bio-discovery…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 277 contacts → | ||||
Exact match “EWI empowers industry leaders to overcome complex manufacturing challenges and integrate new processes to bring products to market more quickly and efficiently.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 227 contacts → | ||||
Exact match “Re:Build’s mission is to ensure the next generation of important products are made, at scale, in America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 212 contacts → | ||||
Exact match “GSC provides comprehensive engineering solutions, with a seamless, integrated workflow, for every aspect of product development – design, simulation, 3D printing, communication…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 209 contacts → | ||||
Exact match “Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 201 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 187 contacts → | ||||
Exact match “Custom Prototypes, 3D Printing, and On-Demand Parts Manufacturing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 185 contacts → | ||||
Exact match “Creare develops innovative technology, products, and system-level solutions for clients ranging from NASA and DOD to biomedical and consumer products firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 165 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 163 contacts → | ||||
Exact match “Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 159 contacts → | ||||
Exact match “General Stamping & Metalworks (GSM) is a metal stamping and fabrication manufacturer with plants in South Bend, Indiana and Tomah, Wisconsin.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 157 contacts → | ||||
Exact match “Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 155 contacts → | ||||
Exact match “Rapidise.io is the world’s first and only AI & Blockchain-enabled TTaaS platform which accelerates product engineering by providing you with global access to companies with…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 152 contacts → | ||||
Exact match “Innovize offers custom development and manufacturing solutions – including converting and contract manufacturing – for product designers, developers, engineers and supply chain…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 150 contacts → | ||||
Exact match “Thomas Instrument is an engineering and manufacturing firm of flight critical precision machined components and complex fabrications for the US DOD and Commercial Aerospace.” Recorded in the RevenueBase company graph · Nov 6, 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 prototyping 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 25 of 3,708 engineering and prototyping firms based in the United States
See the full list, filter by size, metro and specialty, and access 11,400 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Engineering and prototyping firms based in the United States at a glance
As of Nov 6, 2026Companies by employee count
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 3,708 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 and prototyping 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 11,400 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.
Engineering and prototyping firms by metro
- Engineering and prototyping firms in San Diego56
- Engineering and prototyping firms in Austin53
- Engineering and prototyping firms in Los Angeles49
- Engineering and prototyping firms in San Francisco47
- Engineering and prototyping firms in New York46
- Engineering and prototyping firms in San Jose43
- Engineering and prototyping firms in Seattle42
- Engineering and prototyping firms in Chicago39
- Engineering and prototyping firms in Houston38
- Engineering and prototyping firms in Portland32
- Engineering and prototyping firms in Atlanta31
- Engineering and prototyping firms in Santa Clara25
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 prototyping firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many engineering and prototyping firms are there based in the United States?
RevenueBase identified 3,708 company matches for engineering and prototyping firms 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?
ARI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most engineering and prototyping firms?
San Diego leads with 56 company records, followed by Austin (53) and Los Angeles (49).
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 11,400 professional contacts with verified work emails tracked across these 3,708 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 3,708 engineering and prototyping firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Engineering and prototyping firms by geography
- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China
- Engineering and prototyping firms based in Paris, France
- Engineering and prototyping firms based in Berlin, Germany
- Engineering and prototyping firms based in Munich, Germany
- Engineering and prototyping firms based in Bangalore, India
- Engineering and prototyping firms based in Chennai, India
- Engineering and prototyping firms based in Hyderabad, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China
Company intelligence · public preview
Top 25 engineering and prototyping firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,708 matching company records for engineering and prototyping firms based in the United States, with 39,493 tracked contacts and 11,400 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 engineering and prototyping firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ARIarigs.comHQ: East Peoria, IL, United StatesReported employees: 1,001-5,000 | East Peoria, IL, United States | 1,001-5,000 | Exact match | 1,030 contacts → |
“ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Janickijanicki.comHQ: Sedro-woolley, WA, United StatesReported employees: 1,001-5,000 | Sedro-woolley, WA, United States | 1,001-5,000 | Exact match | 1,018 contacts → |
“Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  FM Industriesfmindustries.comHQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 604 contacts → |
“FM Industries, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Raja Software Labsrajasoftwarelabs.comHQ: Saratoga, CA, United StatesReported employees: 201-500 | Saratoga, CA, United States | 201-500 | Exact match | 528 contacts → |
“Raja Software Labs (RSL) is a product engineering company helping clients ship high volume, high impact products used by millions of users.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  RFA Engineeringrfamec.comHQ: Eden Prairie, MN, United StatesReported employees: 201-500 | Eden Prairie, MN, United States | 201-500 | Exact match | 493 contacts → |
“RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  RCO Engineeringrcoeng.comHQ: Roseville, MI, United StatesReported employees: 501-1,000 | Roseville, MI, United States | 501-1,000 | Exact match | 465 contacts → |
“Specializing in low-volume manufacturing that Tier 1 suppliers avoid, we offer complete program management under one roof, including emergency tooling and parts, large program…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Kaleidoscope Innovationkascope.comHQ: Cincinnati, TX, United StatesReported employees: 201-500 | Cincinnati, TX, United States | 201-500 | Exact match | 362 contacts → |
“When clients come to us for product design and development, they get a full range of technical expertise and laboratory resources, but they also get a team that’s relentless when…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Triple Crowntripleco.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 344 contacts → |
“Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Martech Medical Products, INCmartechmedical.comHQ: Harleysville, PA, United StatesReported employees: 201-500 | Harleysville, PA, United States | 201-500 | Exact match | 338 contacts → |
“MARTECH® MEDICAL PRODUCTS, INC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ascentec Engineering, LLCascenteceng.comHQ: Tualatin, OR, United StatesReported employees: 201-500 | Tualatin, OR, United States | 201-500 | Exact match | 316 contacts → |
“Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Columbia Techcolumbiatech.comHQ: Westborough, United StatesReported employees: 501-1,000 | Westborough, United States | 501-1,000 | Exact match | 312 contacts → |
“Columbia Tech provides engineering design, manufacturing, global fulfillment and aftermarket services to innovation leaders in the life-science, pharmaceutical, bio-discovery…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  EWIewi.orgHQ: Columbus, CO, United StatesReported employees: 51-200 | Columbus, CO, United States | 51-200 | Exact match | 277 contacts → |
“EWI empowers industry leaders to overcome complex manufacturing challenges and integrate new processes to bring products to market more quickly and efficiently.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  RE Build Manufacturingrebuildmanufacturing.comHQ: Framingham, MA, United StatesReported employees: 1,001-5,000 | Framingham, MA, United States | 1,001-5,000 | Exact match | 227 contacts → |
“Re:Build’s mission is to ensure the next generation of important products are made, at scale, in America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  GSCgsc-3d.comHQ: Germantown, WI, United StatesReported employees: 51-200 | Germantown, WI, United States | 51-200 | Exact match | 212 contacts → |
“GSC provides comprehensive engineering solutions, with a seamless, integrated workflow, for every aspect of product development – design, simulation, 3D printing, communication…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Andrews Cooperandrews-cooper.comHQ: Mcminnville, OR, United StatesReported employees: 51-200 | Mcminnville, OR, United States | 51-200 | Exact match | 209 contacts → |
“Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Ryzen Solutionsryzen.comHQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 201 contacts → |
“Since Ryzen Solutions has become a trusted provider to Silicon Valley’s growing product development community.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Quickpartsquickparts.comHQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 187 contacts → |
“Custom Prototypes, 3D Printing, and On-Demand Parts Manufacturing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Crearecreare.comHQ: Hanover, NH, United StatesReported employees: 51-200 | Hanover, NH, United States | 51-200 | Exact match | 185 contacts → |
“Creare develops innovative technology, products, and system-level solutions for clients ranging from NASA and DOD to biomedical and consumer products firms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  MI Technologies, INCmitechnologiesinc.comHQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 165 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Waltonen Engineeringwaltonen.comHQ: Warren, MI, United StatesReported employees: 51-200 | Warren, MI, United States | 51-200 | Exact match | 163 contacts → |
“Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  General Stamping & Metalworksgsmwinc.comHQ: South Bend, WI, United StatesReported employees: 201-500 | South Bend, WI, United States | 201-500 | Exact match | 159 contacts → |
“General Stamping & Metalworks (GSM) is a metal stamping and fabrication manufacturer with plants in South Bend, Indiana and Tomah, Wisconsin.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mecha INCmechainc.comHQ: Raleigh, NC, United StatesReported employees: Not recorded | Raleigh, NC, United States | Not recorded | Exact match | 157 contacts → |
“Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | rapidise.iorapidise.io HQ: Milpitas, CA, United StatesReported employees: Not recorded | Milpitas, CA, United States | Not recorded | Exact match | 155 contacts → |
“Rapidise.io is the world’s first and only AI & Blockchain-enabled TTaaS platform which accelerates product engineering by providing you with global access to companies with…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Innovizeinnovize.comHQ: St. Paul, MN, United StatesReported employees: 201-500 | St. Paul, MN, United States | 201-500 | Exact match | 152 contacts → |
“Innovize offers custom development and manufacturing solutions – including converting and contract manufacturing – for product designers, developers, engineers and supply chain…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Thomas Instrumentthomasinstrument.comHQ: Brookshire, TX, United StatesReported employees: 51-200 | Brookshire, TX, United States | 51-200 | Exact match | 150 contacts → |
“Thomas Instrument is an engineering and manufacturing firm of flight critical precision machined components and complex fabrications for the US DOD and Commercial Aerospace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,708 company matches
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Engineering and prototyping firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,702 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 3,708 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Engineering and prototyping firms by metro
- Engineering and prototyping firms in San Diego56
- Engineering and prototyping firms in Austin53
- Engineering and prototyping firms in Los Angeles49
- Engineering and prototyping firms in San Francisco47
- Engineering and prototyping firms in New York46
- Engineering and prototyping firms in San Jose43
- Engineering and prototyping firms in Seattle42
- Engineering and prototyping firms in Chicago39
- Engineering and prototyping firms in Houston38
- Engineering and prototyping firms in Portland32
- Engineering and prototyping firms in Atlanta31
- Engineering and prototyping firms in Santa Clara25
Questions about this company list
What does Exact match mean for engineering and prototyping firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many engineering and prototyping firms did RevenueBase find based in the United States?
The saved snapshot records 3,708 matching company records, 39,493 tracked contacts and 11,400 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Engineering and prototyping firms by geography
- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China
- Engineering and prototyping firms based in Paris, France
- Engineering and prototyping firms based in Berlin, Germany
- Engineering and prototyping firms based in Munich, Germany
- Engineering and prototyping firms based in Bangalore, India
- Engineering and prototyping firms based in Chennai, India
- Engineering and prototyping firms based in Hyderabad, India
Cite this list
RevenueBase Data Team. Top 25 engineering and prototyping firms based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/engineering-and-prototyping-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China
Company intelligence · public preview
Top 25 engineering and prototyping firms based in the United States
RevenueBase records 3,708 matching company records for engineering and prototyping firms based in the United States, with 39,493 tracked contacts and 11,400 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 engineering and prototyping firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ARIarigs.com HQ: East Peoria, IL, United StatesReported employees: 1,001-5,000 | East Peoria, IL, United States | 1,001-5,000 | Exact match | 1,030 contacts → |
“ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Janickijanicki.com HQ: Sedro-woolley, WA, United StatesReported employees: 1,001-5,000 | Sedro-woolley, WA, United States | 1,001-5,000 | Exact match | 1,018 contacts → |
“Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | FM Industriesfmindustries.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 604 contacts → |
“FM Industries, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Raja Software Labsrajasoftwarelabs.com HQ: Saratoga, CA, United StatesReported employees: 201-500 | Saratoga, CA, United States | 201-500 | Exact match | 528 contacts → |
“Raja Software Labs (RSL) is a product engineering company helping clients ship high volume, high impact products used by millions of users.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | RFA Engineeringrfamec.com HQ: Eden Prairie, MN, United StatesReported employees: 201-500 | Eden Prairie, MN, United States | 201-500 | Exact match | 493 contacts → |
“RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | RCO Engineeringrcoeng.com HQ: Roseville, MI, United StatesReported employees: 501-1,000 | Roseville, MI, United States | 501-1,000 | Exact match | 465 contacts → |
“Specializing in low-volume manufacturing that Tier 1 suppliers avoid, we offer complete program management under one roof, including emergency tooling and parts, large program…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Kaleidoscope Innovationkascope.com HQ: Cincinnati, TX, United StatesReported employees: 201-500 | Cincinnati, TX, United States | 201-500 | Exact match | 362 contacts → |
“When clients come to us for product design and development, they get a full range of technical expertise and laboratory resources, but they also get a team that’s relentless when…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Triple Crowntripleco.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 344 contacts → |
“Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Martech Medical Products, INCmartechmedical.com HQ: Harleysville, PA, United StatesReported employees: 201-500 | Harleysville, PA, United States | 201-500 | Exact match | 338 contacts → |
“MARTECH® MEDICAL PRODUCTS, INC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ascentec Engineering, LLCascenteceng.com HQ: Tualatin, OR, United StatesReported employees: 201-500 | Tualatin, OR, United States | 201-500 | Exact match | 316 contacts → |
“Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Columbia Techcolumbiatech.com HQ: Westborough, United StatesReported employees: 501-1,000 | Westborough, United States | 501-1,000 | Exact match | 312 contacts → |
“Columbia Tech provides engineering design, manufacturing, global fulfillment and aftermarket services to innovation leaders in the life-science, pharmaceutical, bio-discovery…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | EWIewi.org HQ: Columbus, CO, United StatesReported employees: 51-200 | Columbus, CO, United States | 51-200 | Exact match | 277 contacts → |
“EWI empowers industry leaders to overcome complex manufacturing challenges and integrate new processes to bring products to market more quickly and efficiently.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | RE Build Manufacturingrebuildmanufacturing.com HQ: Framingham, MA, United StatesReported employees: 1,001-5,000 | Framingham, MA, United States | 1,001-5,000 | Exact match | 227 contacts → |
“Re:Build’s mission is to ensure the next generation of important products are made, at scale, in America.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | GSCgsc-3d.com HQ: Germantown, WI, United StatesReported employees: 51-200 | Germantown, WI, United States | 51-200 | Exact match | 212 contacts → |
“GSC provides comprehensive engineering solutions, with a seamless, integrated workflow, for every aspect of product development – design, simulation, 3D printing, communication…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Andrews Cooperandrews-cooper.com HQ: Mcminnville, OR, United StatesReported employees: 51-200 | Mcminnville, OR, United States | 51-200 | Exact match | 209 contacts → |
“Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ryzen Solutionsryzen.com HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 201 contacts → |
“Since Ryzen Solutions has become a trusted provider to Silicon Valley’s growing product development community.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Quickpartsquickparts.com HQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 187 contacts → |
“Custom Prototypes, 3D Printing, and On-Demand Parts Manufacturing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Crearecreare.com HQ: Hanover, NH, United StatesReported employees: 51-200 | Hanover, NH, United States | 51-200 | Exact match | 185 contacts → |
“Creare develops innovative technology, products, and system-level solutions for clients ranging from NASA and DOD to biomedical and consumer products firms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | MI Technologies, INCmitechnologiesinc.com HQ: San Diego, CA, United StatesReported employees: 501-1,000 | San Diego, CA, United States | 501-1,000 | Exact match | 165 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Waltonen Engineeringwaltonen.com HQ: Warren, MI, United StatesReported employees: 51-200 | Warren, MI, United States | 51-200 | Exact match | 163 contacts → |
“Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | General Stamping & Metalworksgsmwinc.com HQ: South Bend, WI, United StatesReported employees: 201-500 | South Bend, WI, United States | 201-500 | Exact match | 159 contacts → |
“General Stamping & Metalworks (GSM) is a metal stamping and fabrication manufacturer with plants in South Bend, Indiana and Tomah, Wisconsin.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mecha INCmechainc.com HQ: Raleigh, NC, United StatesReported employees: Not recorded | Raleigh, NC, United States | Not recorded | Exact match | 157 contacts → |
“Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | rapidise.iorapidise.io HQ: Milpitas, CA, United StatesReported employees: Not recorded | Milpitas, CA, United States | Not recorded | Exact match | 155 contacts → |
“Rapidise.io is the world’s first and only AI & Blockchain-enabled TTaaS platform which accelerates product engineering by providing you with global access to companies with…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Innovizeinnovize.com HQ: St. Paul, MN, United StatesReported employees: 201-500 | St. Paul, MN, United States | 201-500 | Exact match | 152 contacts → |
“Innovize offers custom development and manufacturing solutions – including converting and contract manufacturing – for product designers, developers, engineers and supply chain…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Thomas Instrumentthomasinstrument.com HQ: Brookshire, TX, United StatesReported employees: 51-200 | Brookshire, TX, United States | 51-200 | Exact match | 150 contacts → |
“Thomas Instrument is an engineering and manufacturing firm of flight critical precision machined components and complex fabrications for the US DOD and Commercial Aerospace.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,708 company matches
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Engineering and prototyping firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,702 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 3,708 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Engineering and prototyping firms by metro
- Engineering and prototyping firms in San Diego56
- Engineering and prototyping firms in Austin53
- Engineering and prototyping firms in Los Angeles49
- Engineering and prototyping firms in San Francisco47
- Engineering and prototyping firms in New York46
- Engineering and prototyping firms in San Jose43
- Engineering and prototyping firms in Seattle42
- Engineering and prototyping firms in Chicago39
- Engineering and prototyping firms in Houston38
- Engineering and prototyping firms in Portland32
- Engineering and prototyping firms in Atlanta31
- Engineering and prototyping firms in Santa Clara25
Questions about this company list
What does Exact match mean for engineering and prototyping firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many engineering and prototyping firms did RevenueBase find based in the United States?
The saved snapshot records 3,708 matching company records, 39,493 tracked contacts and 11,400 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Engineering and prototyping firms by geography
- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China
- Engineering and prototyping firms based in Paris, France
- Engineering and prototyping firms based in Berlin, Germany
- Engineering and prototyping firms based in Munich, Germany
- Engineering and prototyping firms based in Bangalore, India
- Engineering and prototyping firms based in Chennai, India
- Engineering and prototyping firms based in Hyderabad, India
Cite this list
RevenueBase Data Team. Top 25 engineering and prototyping firms based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/engineering-and-prototyping-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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- Engineering and prototyping firms based in Brisbane, Australia
- Engineering and prototyping firms based in Melbourne, Australia
- Engineering and prototyping firms based in Montreal, Canada
- Engineering and prototyping firms based in Toronto, Canada
- Engineering and prototyping firms based in Vancouver, Canada
- Engineering and prototyping firms based in Shenzhen, China