Company lists · Data refreshed November 2026
Top 25 Prototype engineering firms based in the United States
RevenueBase identified 3,048 company matches for prototype engineering firms associated with the United States as of November 2026 and tracks 33,319 professional contacts across them, including 11,010 with verified work emails. San Francisco is the largest hub.
This list covers company matches for prototype engineering 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 prototype engineering firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 581 contacts → | ||||
Exact match “Indovance is a global, multidisciplinary Engineering Services firm, backed by more than two decades of industry expertise in delivering high-quality CAD Drafting and Design…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 514 contacts → | ||||
Exact match “Delve is a product innovation services firm.” 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 | 409 contacts → | ||||
Exact match “What do some of the world’s largest projects have in common?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 338 contacts → | ||||
Exact match “DMC is an established project-based engineering and software development firm founded in 1996 serving customers worldwide from our offices in Chicago, Austin, Boston, Cincinnati…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 336 contacts → | ||||
Exact match “Founded in 1989, TRC Worldwide Engineering, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 326 contacts → | ||||
Exact match “Sigma Design is where the best go to innovate.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 289 contacts → | ||||
Exact match “Transcenda provides strategy, design, and engineering for the AI era.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 284 contacts → | ||||
Exact match “Engineered to crack the code of possibility.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 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 | |||||
| 16 | 274 contacts → | ||||
Exact match “Summit Design and Engineering Services is a design and engineering services firm headquartered in Raleigh, North Carolina, with offices in Hillsborough, Fayetteville, Asheville…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 252 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 231 contacts → | ||||
Exact match “Cambridge Design Partnership is an end-to-end innovation partner, propelling global brands and ambitious start-ups to success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 220 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 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 | |||||
| 21 | 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 | |||||
| 22 | 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 | |||||
| 23 | 192 contacts → | ||||
Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 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 | |||||
| 25 | 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 | |||||
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 “prototype engineering 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 3,048 prototype engineering firms based in the United States
See the full list, filter by size, metro and specialty, and access 11,010 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Prototype engineering 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 3,048 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 “prototype engineering 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 11,010 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.
Prototype engineering firms by metro
- Prototype engineering firms in San Francisco56
- Prototype engineering firms in New York52
- Prototype engineering firms in Austin48
- Prototype engineering firms in Chicago46
- Prototype engineering firms in Los Angeles44
- Prototype engineering firms in San Diego43
- Prototype engineering firms in Houston37
- Prototype engineering firms in Seattle37
- Prototype engineering firms in Atlanta35
- Prototype engineering firms in Portland35
- Prototype engineering firms in San Jose32
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 “prototype engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many prototype engineering firms are there based in the United States?
RevenueBase identified 3,048 company matches for prototype engineering 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?
Janicki tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most prototype engineering firms?
San Francisco leads with 56 company records, followed by New York (52) and Austin (48).
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 11,010 professional contacts with verified work emails tracked across these 3,048 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 3,048 prototype engineering firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Prototype engineering firms by geography
- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India
- Prototype engineering firms based in Chennai, India
- Prototype engineering firms based in Mumbai, India
- Prototype engineering firms based in Pune, India
- Prototype engineering firms based in Stockholm, Sweden
- Prototype engineering firms based in Bristol, United Kingdom
- Prototype engineering firms based in London, United Kingdom
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
- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India
Company intelligence · public preview
Top 25 prototype engineering 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 3,048 matching company records for prototype engineering firms based in the United States, with 33,319 tracked contacts and 11,010 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 prototype engineering 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 |  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. | |||||
| 2 |  Indovance INCindovance.comHQ: Apex, NC, United StatesReported employees: 501-1,000 | Apex, NC, United States | 501-1,000 | Exact match | 581 contacts → |
“Indovance is a global, multidisciplinary Engineering Services firm, backed by more than two decades of industry expertise in delivering high-quality CAD Drafting and Design…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  DELVEdelve.comHQ: Madison, MA, United StatesReported employees: 201-500 | Madison, MA, United States | 201-500 | Exact match | 514 contacts → |
“Delve is a product innovation services firm.” 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 |  Symetri USAsymetri.usHQ: Nashua, CT, United StatesReported employees: 501-1,000 | Nashua, CT, United States | 501-1,000 | Exact match | 409 contacts → |
“What do some of the world’s largest projects have in common?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  DMC Engineeringdmcinfo.comHQ: Chicago, DC, United StatesReported employees: 201-500 | Chicago, DC, United States | 201-500 | Exact match | 338 contacts → |
“DMC is an established project-based engineering and software development firm founded in 1996 serving customers worldwide from our offices in Chicago, Austin, Boston, Cincinnati…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  TRC Worldwide Engineering, INCtrcww.comHQ: Brentwood, FL, United StatesReported employees: 201-500 | Brentwood, FL, United States | 201-500 | Exact match | 336 contacts → |
“Founded in 1989, TRC Worldwide Engineering, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sigma Designsigmadzn.comHQ: Camas, OR, United StatesReported employees: 201-500 | Camas, OR, United States | 201-500 | Exact match | 326 contacts → |
“Sigma Design is where the best go to innovate.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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. | |||||
| 13 |  Transcendatranscenda.comHQ: Hq In Michigan, United StatesReported employees: 201-500 | Hq In Michigan, United States | 201-500 | Exact match | 289 contacts → |
“Transcenda provides strategy, design, and engineering for the AI era.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  VAA LLCvaaeng.comHQ: Minneapolis, LA, United StatesReported employees: 201-500 | Minneapolis, LA, United States | 201-500 | Exact match | 284 contacts → |
“Engineered to crack the code of possibility.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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. | |||||
| 16 |  Summit Design And Engineering Servicessummitde.comHQ: Raleigh, NC, United StatesReported employees: 201-500 | Raleigh, NC, United States | 201-500 | Exact match | 274 contacts → |
“Summit Design and Engineering Services is a design and engineering services firm headquartered in Raleigh, North Carolina, with offices in Hillsborough, Fayetteville, Asheville…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  BSI Engineeringbsiengr.comHQ: Mason, IL, United StatesReported employees: 201-500 | Mason, IL, United States | 201-500 | Exact match | 252 contacts → |
“BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cambridge Design Partnershipcambridge-design.comHQ: Cambridge, NC, United StatesReported employees: 51-200 | Cambridge, NC, United States | 51-200 | Exact match | 231 contacts → |
“Cambridge Design Partnership is an end-to-end innovation partner, propelling global brands and ambitious start-ups to success.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Waldemar S. Nelson & Co., INCwsnelson.comHQ: New Orleans, TX, United StatesReported employees: 201-500 | New Orleans, TX, United States | 201-500 | Exact match | 220 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  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. | |||||
| 21 |  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. | |||||
| 22 |  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. | |||||
| 23 |  Harris Groupharrisgroup.comHQ: Seattle, CO, United StatesReported employees: 51-200 | Seattle, CO, United States | 51-200 | Exact match | 192 contacts → |
“Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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. | |||||
| 25 |  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. | |||||
Showing 25 of 3,048 company matches
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Prototype engineering 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
3,043 records in the displayed employee bands.
5 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 3,048 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 ↗
Prototype engineering firms by metro
- Prototype engineering firms in San Francisco56
- Prototype engineering firms in New York52
- Prototype engineering firms in Austin48
- Prototype engineering firms in Chicago46
- Prototype engineering firms in Los Angeles44
- Prototype engineering firms in San Diego43
- Prototype engineering firms in Houston37
- Prototype engineering firms in Seattle37
- Prototype engineering firms in Atlanta35
- Prototype engineering firms in Portland35
- Prototype engineering firms in San Jose32
Questions about this company list
What does Exact match mean for prototype engineering 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 prototype engineering firms did RevenueBase find based in the United States?
The saved snapshot records 3,048 matching company records, 33,319 tracked contacts and 11,010 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
Prototype engineering firms by geography
- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India
- Prototype engineering firms based in Chennai, India
- Prototype engineering firms based in Mumbai, India
- Prototype engineering firms based in Pune, India
- Prototype engineering firms based in Stockholm, Sweden
- Prototype engineering firms based in Bristol, United Kingdom
- Prototype engineering firms based in London, United Kingdom
Cite this list
RevenueBase Data Team. Top 25 prototype engineering firms based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/prototype-engineering-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
- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India
Company intelligence · public preview
Top 25 prototype engineering firms based in the United States
RevenueBase records 3,048 matching company records for prototype engineering firms based in the United States, with 33,319 tracked contacts and 11,010 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 prototype engineering 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 | 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. | |||||
| 2 | Indovance INCindovance.com HQ: Apex, NC, United StatesReported employees: 501-1,000 | Apex, NC, United States | 501-1,000 | Exact match | 581 contacts → |
“Indovance is a global, multidisciplinary Engineering Services firm, backed by more than two decades of industry expertise in delivering high-quality CAD Drafting and Design…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | DELVEdelve.com HQ: Madison, MA, United StatesReported employees: 201-500 | Madison, MA, United States | 201-500 | Exact match | 514 contacts → |
“Delve is a product innovation services firm.” 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 | Symetri USAsymetri.us HQ: Nashua, CT, United StatesReported employees: 501-1,000 | Nashua, CT, United States | 501-1,000 | Exact match | 409 contacts → |
“What do some of the world’s largest projects have in common?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | DMC Engineeringdmcinfo.com HQ: Chicago, DC, United StatesReported employees: 201-500 | Chicago, DC, United States | 201-500 | Exact match | 338 contacts → |
“DMC is an established project-based engineering and software development firm founded in 1996 serving customers worldwide from our offices in Chicago, Austin, Boston, Cincinnati…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | TRC Worldwide Engineering, INCtrcww.com HQ: Brentwood, FL, United StatesReported employees: 201-500 | Brentwood, FL, United States | 201-500 | Exact match | 336 contacts → |
“Founded in 1989, TRC Worldwide Engineering, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sigma Designsigmadzn.com HQ: Camas, OR, United StatesReported employees: 201-500 | Camas, OR, United States | 201-500 | Exact match | 326 contacts → |
“Sigma Design is where the best go to innovate.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | Transcendatranscenda.com HQ: Hq In Michigan, United StatesReported employees: 201-500 | Hq In Michigan, United States | 201-500 | Exact match | 289 contacts → |
“Transcenda provides strategy, design, and engineering for the AI era.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | VAA LLCvaaeng.com HQ: Minneapolis, LA, United StatesReported employees: 201-500 | Minneapolis, LA, United States | 201-500 | Exact match | 284 contacts → |
“Engineered to crack the code of possibility.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | Summit Design And Engineering Servicessummitde.com HQ: Raleigh, NC, United StatesReported employees: 201-500 | Raleigh, NC, United States | 201-500 | Exact match | 274 contacts → |
“Summit Design and Engineering Services is a design and engineering services firm headquartered in Raleigh, North Carolina, with offices in Hillsborough, Fayetteville, Asheville…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | BSI Engineeringbsiengr.com HQ: Mason, IL, United StatesReported employees: 201-500 | Mason, IL, United States | 201-500 | Exact match | 252 contacts → |
“BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cambridge Design Partnershipcambridge-design.com HQ: Cambridge, NC, United StatesReported employees: 51-200 | Cambridge, NC, United States | 51-200 | Exact match | 231 contacts → |
“Cambridge Design Partnership is an end-to-end innovation partner, propelling global brands and ambitious start-ups to success.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Waldemar S. Nelson & Co., INCwsnelson.com HQ: New Orleans, TX, United StatesReported employees: 201-500 | New Orleans, TX, United States | 201-500 | Exact match | 220 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | 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. | |||||
| 23 | Harris Groupharrisgroup.com HQ: Seattle, CO, United StatesReported employees: 51-200 | Seattle, CO, United States | 51-200 | Exact match | 192 contacts → |
“Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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. | |||||
| 25 | 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. | |||||
Showing 25 of 3,048 company matches
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Prototype engineering 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
3,043 records in the displayed employee bands.
5 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 3,048 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 ↗
Prototype engineering firms by metro
- Prototype engineering firms in San Francisco56
- Prototype engineering firms in New York52
- Prototype engineering firms in Austin48
- Prototype engineering firms in Chicago46
- Prototype engineering firms in Los Angeles44
- Prototype engineering firms in San Diego43
- Prototype engineering firms in Houston37
- Prototype engineering firms in Seattle37
- Prototype engineering firms in Atlanta35
- Prototype engineering firms in Portland35
- Prototype engineering firms in San Jose32
Questions about this company list
What does Exact match mean for prototype engineering 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 prototype engineering firms did RevenueBase find based in the United States?
The saved snapshot records 3,048 matching company records, 33,319 tracked contacts and 11,010 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
Prototype engineering firms by geography
- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India
- Prototype engineering firms based in Chennai, India
- Prototype engineering firms based in Mumbai, India
- Prototype engineering firms based in Pune, India
- Prototype engineering firms based in Stockholm, Sweden
- Prototype engineering firms based in Bristol, United Kingdom
- Prototype engineering firms based in London, United Kingdom
Cite this list
RevenueBase Data Team. Top 25 prototype engineering firms based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/prototype-engineering-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Prototype engineering firms based in Melbourne, Australia
- Prototype engineering firms based in Sao Paulo, Brazil
- Prototype engineering firms based in Montreal, Canada
- Prototype engineering firms based in Toronto, Canada
- Prototype engineering firms based in Paris, France
- Prototype engineering firms based in Bangalore, India