Company lists · Data refreshed October 2026
Top 25 Prototype assembly suppliers based in the United States
RevenueBase identified 523 company matches for prototype assembly suppliers associated with the United States as of October 2026 and tracks 6,038 professional contacts across them, including 1,525 with verified work emails. San Jose is the largest hub.
This list covers company matches for prototype assembly suppliers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 29, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest prototype assembly suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 834 contacts → | ||||
Exact match “Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 2 | 292 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 3 | 142 contacts → | ||||
Exact match “In 1969, DFF began serving customers with quality development and low-quantity production services-on time and at competitive prices.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 4 | 110 contacts → | ||||
Exact match “The 3-Dimensional Services Group specializes in manufacturing metal and plastic prototype and low-volume production parts and assemblies.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 5 | 97 contacts → | ||||
Exact match “Sonic Manufacturing Technologies is Dedicated to the Success of your Business.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 6 | 87 contacts → | ||||
Exact match “VPI Technology VPI is a high-tech company that provides premium professional services in the design, engineering, testing, and manufacturing of new technology.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 7 | 85 contacts → | ||||
Exact match “Pivot International is a global leader in product design, development, and electronics manufacturing.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 8 | 78 contacts → | ||||
Exact match “Aimtron Corporation specializes in the Electronic Manufacturing Services since 2009.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 9 | 76 contacts → | ||||
Exact match “At Prime EMS, we are committed to servicing you and your company’s requirements to the highest level.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 10 | 74 contacts → | ||||
Exact match “DISTRON CORPORATION is a New England based provider of electronic contract manufacturing services.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 11 | 65 contacts → | ||||
Exact match “Sunburst EMS is a flexible, full-service provider of a full range of electronic manufacturing services.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 12 | 65 contacts → | ||||
Exact match “The Innovation Center by Viable Engineering Solutions is a world-class industrial rapid solution concept-to-completion center for the industrial market.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 13 | 64 contacts → | ||||
Exact match “MCL Industries is a full-service engineering and manufacturing partner to customers across the United States, serving OEMs and product developers in industries such as…” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 14 | 62 contacts → | ||||
Exact match “ISO 9001:2015 Registered ISO/ITAR & TS 16949 Compliant AS9100 – Supported by our Quality Systems Manual NAICS 332116,332312,332710,541330,541490 ISO 14001 – Pursuing registration…” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 15 | 62 contacts → | ||||
Exact match “Maine Machine Products Company is a squ.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 16 | 56 contacts → | ||||
Exact match “Rapid was acquired by Protolabs and rebranded Rapid, a Protolabs Company on 12/1/2017.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 17 | 52 contacts → | ||||
Exact match “We elevate and accelerate prototyping to production, but our ability to take on challenges is at the heart of everything we do.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 18 | 51 contacts → | ||||
Exact match “Major OEM's turn to Wescon Plastics for industry leading design and robust repeatable manufacturing processes; producing true low total cost solutions.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 19 | 49 contacts → | ||||
Exact match “Since 1977, Fabcon has been providing manufacturing services to a diverse range of customers and industries based in both domestic and international markets earning a stellar…” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 20 | 48 contacts → | ||||
Exact match “We are an electronic contract manufacturing provider with exceptional experience and reputation.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 21 | 48 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 22 | 45 contacts → | ||||
Exact match “CIRCUIT WORKS CORPORATION is an electrical/electronic manufacturing company based out of 3135 N.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 23 | 45 contacts → | ||||
Exact match “Designcraft offers specialty services for professional companies engaged in Prototyping, New Product Development and Rapid Manufacturing.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 24 | 45 contacts → | ||||
Exact match “Providing flexible and affordable electronic design, manufacturing and sourcing services since 2007, NCA is proud to be the premier partner that can help small business owners and…” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 25 | 43 contacts → | ||||
Exact match “Our Mission: Exploration Sherpa Design is a team of engineers, designers, and machinists who are dedicated to helping your business push the mechanical and technological envelope.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “prototype assembly suppliers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 523 prototype assembly suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 1,525 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Prototype assembly suppliers based in the United States at a glance
As of Oct 29, 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 523 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 assembly suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,525 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 29, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
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 assembly suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many prototype assembly suppliers are there based in the United States?
RevenueBase identified 523 company matches for prototype assembly suppliers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Keytronic tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most prototype assembly suppliers?
San Jose leads with 13 company records, followed by Austin (7) and Fremont (7).
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 1,525 professional contacts with verified work emails tracked across these 523 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 523 prototype assembly suppliers based in the United States. Start with a free account, no credit card.
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Prototype assembly suppliers by geography
- Prototype assembly suppliers based in Australia
- Prototype assembly suppliers based in Canada
- Prototype assembly suppliers based in China
- Prototype assembly suppliers based in France
- Prototype assembly suppliers based in Germany
- Prototype assembly suppliers based in India
- Prototype assembly suppliers based in Italy
- Prototype assembly suppliers based in the Netherlands
- Prototype assembly suppliers based in the 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 assembly suppliers based in Australia
- Prototype assembly suppliers based in Canada
- Prototype assembly suppliers based in China
- Prototype assembly suppliers based in France
- Prototype assembly suppliers based in Germany
- Prototype assembly suppliers based in India
Company intelligence · public preview
Top 25 prototype assembly suppliers 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 523 matching company records for prototype assembly suppliers based in the United States, with 6,038 tracked contacts and 1,525 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: October 29, 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 assembly suppliers 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 |  Keytronickeytronic.comHQ: Spokane Valley, WA, United StatesReported employees: 1,001-5,000 | Spokane Valley, WA, United States | 1,001-5,000 | Exact match | 834 contacts → |
“Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ascentec Engineering, LLCascenteceng.comHQ: Tualatin, OR, United StatesReported employees: 201-500 | Tualatin, OR, United States | 201-500 | Exact match | 292 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 · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | DFF Corporation, A Cadrex Companydffcorp.com HQ: Agawam, MA, United StatesReported employees: 201-500 | Agawam, MA, United States | 201-500 | Exact match | 142 contacts → |
“In 1969, DFF began serving customers with quality development and low-quantity production services-on time and at competitive prices.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  3-Dimensional Services Group3dimensional.comHQ: Rochester Hills, MI, United StatesReported employees: 501-1,000 | Rochester Hills, MI, United States | 501-1,000 | Exact match | 110 contacts → |
“The 3-Dimensional Services Group specializes in manufacturing metal and plastic prototype and low-volume production parts and assemblies.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sonic Manufacturing Technologiessonicmfg.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 97 contacts → |
“Sonic Manufacturing Technologies is Dedicated to the Success of your Business.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VPI Technology, A Division Of Ludlum Measurements, INCvpitechnology.com HQ: Draper, UT, United StatesReported employees: 501-1,000 | Draper, UT, United States | 501-1,000 | Exact match | 87 contacts → |
“VPI Technology VPI is a high-tech company that provides premium professional services in the design, engineering, testing, and manufacturing of new technology.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pivot International, INCpivotint.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 85 contacts → |
“Pivot International is a global leader in product design, development, and electronics manufacturing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Aimtron Corporationaimtron.comHQ: Palatine, IL, United StatesReported employees: 201-500 | Palatine, IL, United States | 201-500 | Exact match | 78 contacts → |
“Aimtron Corporation specializes in the Electronic Manufacturing Services since 2009.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Prime Technological Servicesprime-ems.com HQ: Suwanee, GA, United StatesReported employees: 201-500 | Suwanee, GA, United States | 201-500 | Exact match | 76 contacts → |
“At Prime EMS, we are committed to servicing you and your company’s requirements to the highest level.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Distron Corporationdistron.com HQ: Attleboro Falls, MA, United StatesReported employees: 51-200 | Attleboro Falls, MA, United States | 51-200 | Exact match | 74 contacts → |
“DISTRON CORPORATION is a New England based provider of electronic contract manufacturing services.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sunburst EMSsunburstems.com HQ: West Bridgewater, MA, United StatesReported employees: 51-200 | West Bridgewater, MA, United States | 51-200 | Exact match | 65 contacts → |
“Sunburst EMS is a flexible, full-service provider of a full range of electronic manufacturing services.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Viable Engineering Solutionsviablees.com HQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 65 contacts → |
“The Innovation Center by Viable Engineering Solutions is a world-class industrial rapid solution concept-to-completion center for the industrial market.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | MCL Industries, INCmcl.bz HQ: Pulaski, WI, United StatesReported employees: 51-200 | Pulaski, WI, United States | 51-200 | Exact match | 64 contacts → |
“MCL Industries is a full-service engineering and manufacturing partner to customers across the United States, serving OEMs and product developers in industries such as…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Acro Industries, INCacroind.comHQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 62 contacts → |
“ISO 9001:2015 Registered ISO/ITAR & TS 16949 Compliant AS9100 – Supported by our Quality Systems Manual NAICS 332116,332312,332710,541330,541490 ISO 14001 – Pursuing registration…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Maine Machine Products COprecinmac.com HQ: South Paris, ME, United StatesReported employees: 51-200 | South Paris, ME, United States | 51-200 | Exact match | 62 contacts → |
“Maine Machine Products Company is a squ.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Rapid, A Proto Labs Companyrapidmanufacturing.comHQ: Nashua, NH, United StatesReported employees: 201-500 | Nashua, NH, United States | 201-500 | Exact match | 56 contacts → |
“Rapid was acquired by Protolabs and rebranded Rapid, a Protolabs Company on 12/1/2017.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Duggan Manufacturingdugganmfg.comHQ: Shelby Township, MI, United StatesReported employees: 51-200 | Shelby Township, MI, United States | 51-200 | Exact match | 52 contacts → |
“We elevate and accelerate prototyping to production, but our ability to take on challenges is at the heart of everything we do.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wescon Plasticswesconplastics.com HQ: Wichita, United StatesReported employees: 51-200 | Wichita, United States | 51-200 | Exact match | 51 contacts → |
“Major OEM's turn to Wescon Plastics for industry leading design and robust repeatable manufacturing processes; producing true low total cost solutions.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Fabconfabcon.com HQ: Santa Ana, CA, United StatesReported employees: 201-500 | Santa Ana, CA, United States | 201-500 | Exact match | 49 contacts → |
“Since 1977, Fabcon has been providing manufacturing services to a diverse range of customers and industries based in both domestic and international markets earning a stellar…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sparqtron Corporationsparqtron.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 48 contacts → |
“We are an electronic contract manufacturing provider with exceptional experience and reputation.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Schultes Precision Manufacturing, INCschultes.com HQ: Buffalo Grove, IL, United StatesReported employees: 51-200 | Buffalo Grove, IL, United States | 51-200 | Exact match | 48 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Circuit Works Corporationcwcems.com HQ: Waukegan, IL, United StatesReported employees: 51-200 | Waukegan, IL, United States | 51-200 | Exact match | 45 contacts → |
“CIRCUIT WORKS CORPORATION is an electrical/electronic manufacturing company based out of 3135 N.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Designcraft, INCdesigncraft.comHQ: Lake Zurich, IL, United StatesReported employees: 11-50 | Lake Zurich, IL, United States | 11-50 | Exact match | 45 contacts → |
“Designcraft offers specialty services for professional companies engaged in Prototyping, New Product Development and Rapid Manufacturing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nca, INCncatx.com HQ: Garland, TX, United StatesReported employees: 51-200 | Garland, TX, United States | 51-200 | Exact match | 45 contacts → |
“Providing flexible and affordable electronic design, manufacturing and sourcing services since 2007, NCA is proud to be the premier partner that can help small business owners and…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sherpa Designsherpa-design.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 43 contacts → |
“Our Mission: Exploration Sherpa Design is a team of engineers, designers, and machinists who are dedicated to helping your business push the mechanical and technological envelope.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 523 company matches
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Prototype assembly suppliers: dataset insights
October 29, 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
523 records in the displayed employee bands.
0 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 523 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: October 29, 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 ↗
Questions about this company list
What does Exact match mean for prototype assembly suppliers?
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 assembly suppliers did RevenueBase find based in the United States?
The saved snapshot records 523 matching company records, 6,038 tracked contacts and 1,525 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: October 29, 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 assembly suppliers by geography
- Prototype assembly suppliers based in Australia
- Prototype assembly suppliers based in Canada
- Prototype assembly suppliers based in China
- Prototype assembly suppliers based in France
- Prototype assembly suppliers based in Germany
- Prototype assembly suppliers based in India
- Prototype assembly suppliers based in Italy
- Prototype assembly suppliers based in the Netherlands
- Prototype assembly suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 prototype assembly suppliers based in the United States. Snapshot: October 29, 2026. https://revenuebase.ai/companies/prototype-assembly-suppliers/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 assembly suppliers based in Australia
- Prototype assembly suppliers based in Canada
- Prototype assembly suppliers based in China
- Prototype assembly suppliers based in France
- Prototype assembly suppliers based in Germany
- Prototype assembly suppliers based in India
Company intelligence · public preview
Top 25 prototype assembly suppliers based in the United States
RevenueBase records 523 matching company records for prototype assembly suppliers based in the United States, with 6,038 tracked contacts and 1,525 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: October 29, 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 assembly suppliers 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 | Keytronickeytronic.com HQ: Spokane Valley, WA, United StatesReported employees: 1,001-5,000 | Spokane Valley, WA, United States | 1,001-5,000 | Exact match | 834 contacts → |
“Keytronic is a value-added contract manufacturer to some of the world’s leading OEMs.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ascentec Engineering, LLCascenteceng.com HQ: Tualatin, OR, United StatesReported employees: 201-500 | Tualatin, OR, United States | 201-500 | Exact match | 292 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 · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | DFF Corporation, A Cadrex Companydffcorp.com HQ: Agawam, MA, United StatesReported employees: 201-500 | Agawam, MA, United States | 201-500 | Exact match | 142 contacts → |
“In 1969, DFF began serving customers with quality development and low-quantity production services-on time and at competitive prices.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 3-Dimensional Services Group3dimensional.com HQ: Rochester Hills, MI, United StatesReported employees: 501-1,000 | Rochester Hills, MI, United States | 501-1,000 | Exact match | 110 contacts → |
“The 3-Dimensional Services Group specializes in manufacturing metal and plastic prototype and low-volume production parts and assemblies.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sonic Manufacturing Technologiessonicmfg.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 97 contacts → |
“Sonic Manufacturing Technologies is Dedicated to the Success of your Business.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VPI Technology, A Division Of Ludlum Measurements, INCvpitechnology.com HQ: Draper, UT, United StatesReported employees: 501-1,000 | Draper, UT, United States | 501-1,000 | Exact match | 87 contacts → |
“VPI Technology VPI is a high-tech company that provides premium professional services in the design, engineering, testing, and manufacturing of new technology.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pivot International, INCpivotint.com HQ: Lenexa, KS, United StatesReported employees: 501-1,000 | Lenexa, KS, United States | 501-1,000 | Exact match | 85 contacts → |
“Pivot International is a global leader in product design, development, and electronics manufacturing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Aimtron Corporationaimtron.com HQ: Palatine, IL, United StatesReported employees: 201-500 | Palatine, IL, United States | 201-500 | Exact match | 78 contacts → |
“Aimtron Corporation specializes in the Electronic Manufacturing Services since 2009.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Prime Technological Servicesprime-ems.com HQ: Suwanee, GA, United StatesReported employees: 201-500 | Suwanee, GA, United States | 201-500 | Exact match | 76 contacts → |
“At Prime EMS, we are committed to servicing you and your company’s requirements to the highest level.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Distron Corporationdistron.com HQ: Attleboro Falls, MA, United StatesReported employees: 51-200 | Attleboro Falls, MA, United States | 51-200 | Exact match | 74 contacts → |
“DISTRON CORPORATION is a New England based provider of electronic contract manufacturing services.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sunburst EMSsunburstems.com HQ: West Bridgewater, MA, United StatesReported employees: 51-200 | West Bridgewater, MA, United States | 51-200 | Exact match | 65 contacts → |
“Sunburst EMS is a flexible, full-service provider of a full range of electronic manufacturing services.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Viable Engineering Solutionsviablees.com HQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 65 contacts → |
“The Innovation Center by Viable Engineering Solutions is a world-class industrial rapid solution concept-to-completion center for the industrial market.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | MCL Industries, INCmcl.bz HQ: Pulaski, WI, United StatesReported employees: 51-200 | Pulaski, WI, United States | 51-200 | Exact match | 64 contacts → |
“MCL Industries is a full-service engineering and manufacturing partner to customers across the United States, serving OEMs and product developers in industries such as…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Acro Industries, INCacroind.com HQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 62 contacts → |
“ISO 9001:2015 Registered ISO/ITAR & TS 16949 Compliant AS9100 – Supported by our Quality Systems Manual NAICS 332116,332312,332710,541330,541490 ISO 14001 – Pursuing registration…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Maine Machine Products COprecinmac.com HQ: South Paris, ME, United StatesReported employees: 51-200 | South Paris, ME, United States | 51-200 | Exact match | 62 contacts → |
“Maine Machine Products Company is a squ.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Rapid, A Proto Labs Companyrapidmanufacturing.com HQ: Nashua, NH, United StatesReported employees: 201-500 | Nashua, NH, United States | 201-500 | Exact match | 56 contacts → |
“Rapid was acquired by Protolabs and rebranded Rapid, a Protolabs Company on 12/1/2017.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Duggan Manufacturingdugganmfg.com HQ: Shelby Township, MI, United StatesReported employees: 51-200 | Shelby Township, MI, United States | 51-200 | Exact match | 52 contacts → |
“We elevate and accelerate prototyping to production, but our ability to take on challenges is at the heart of everything we do.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wescon Plasticswesconplastics.com HQ: Wichita, United StatesReported employees: 51-200 | Wichita, United States | 51-200 | Exact match | 51 contacts → |
“Major OEM's turn to Wescon Plastics for industry leading design and robust repeatable manufacturing processes; producing true low total cost solutions.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Fabconfabcon.com HQ: Santa Ana, CA, United StatesReported employees: 201-500 | Santa Ana, CA, United States | 201-500 | Exact match | 49 contacts → |
“Since 1977, Fabcon has been providing manufacturing services to a diverse range of customers and industries based in both domestic and international markets earning a stellar…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sparqtron Corporationsparqtron.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 48 contacts → |
“We are an electronic contract manufacturing provider with exceptional experience and reputation.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Schultes Precision Manufacturing, INCschultes.com HQ: Buffalo Grove, IL, United StatesReported employees: 51-200 | Buffalo Grove, IL, United States | 51-200 | Exact match | 48 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Circuit Works Corporationcwcems.com HQ: Waukegan, IL, United StatesReported employees: 51-200 | Waukegan, IL, United States | 51-200 | Exact match | 45 contacts → |
“CIRCUIT WORKS CORPORATION is an electrical/electronic manufacturing company based out of 3135 N.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Designcraft, INCdesigncraft.com HQ: Lake Zurich, IL, United StatesReported employees: 11-50 | Lake Zurich, IL, United States | 11-50 | Exact match | 45 contacts → |
“Designcraft offers specialty services for professional companies engaged in Prototyping, New Product Development and Rapid Manufacturing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nca, INCncatx.com HQ: Garland, TX, United StatesReported employees: 51-200 | Garland, TX, United States | 51-200 | Exact match | 45 contacts → |
“Providing flexible and affordable electronic design, manufacturing and sourcing services since 2007, NCA is proud to be the premier partner that can help small business owners and…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sherpa Designsherpa-design.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 43 contacts → |
“Our Mission: Exploration Sherpa Design is a team of engineers, designers, and machinists who are dedicated to helping your business push the mechanical and technological envelope.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 523 company matches
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Prototype assembly suppliers: dataset insights
October 29, 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
523 records in the displayed employee bands.
0 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 523 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: October 29, 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 ↗
Questions about this company list
What does Exact match mean for prototype assembly suppliers?
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 assembly suppliers did RevenueBase find based in the United States?
The saved snapshot records 523 matching company records, 6,038 tracked contacts and 1,525 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: October 29, 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 assembly suppliers by geography
- Prototype assembly suppliers based in Australia
- Prototype assembly suppliers based in Canada
- Prototype assembly suppliers based in China
- Prototype assembly suppliers based in France
- Prototype assembly suppliers based in Germany
- Prototype assembly suppliers based in India
- Prototype assembly suppliers based in Italy
- Prototype assembly suppliers based in the Netherlands
- Prototype assembly suppliers based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 prototype assembly suppliers based in the United States. Snapshot: October 29, 2026. https://revenuebase.ai/companies/prototype-assembly-suppliers/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 assembly suppliers based in India