Company lists · Data refreshed September 2026

Top 25 Product engineering service providers based in the United States

Name: Product engineering service providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,240 companies tracked

RevenueBase identified 2,240 product engineering service providers headquartered in the United States as of September 2026 and tracks 50,862 professional contacts across them, including 16,701 with verified work emails. San Francisco is the largest hub.

This list covers product engineering service providers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

2,240Companies

50,862Contacts tracked

16,701Verified emails

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The 25 largest product engineering service providers based in the United States

Ranked by team size

Top 25 of 2,240 product engineering service providers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to product engineering service providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Plexus Corp	Partial evidence	Neenah, NC, United StatesHQ checked Sep 17, 2026	10001+	8,149 contacts →
	Partial evidence “Since 1979, Plexus has been partnering with companies to create the products that build a better world.” Source: RevenueBase Database · checked Sep 17, 2026
2	Benchmark	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 17, 2026	10001+	5,362 contacts →
	Strong evidence “Benchmark is a worldwide provider of innovative product design, engineering services, technology solutions and advanced manufacturing services.” Source: RevenueBase Database · checked Sep 17, 2026
3	Einfochips An Arrow Company	Strong evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,965 contacts →
	Strong evidence “eInfochips, an Arrow company, is a leading global product engineering and semiconductor design services provider.” Source: RevenueBase Database · checked Sep 17, 2026
4	Innominds	Strong evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,766 contacts →
	Strong evidence “Innominds is an AI-first, platform-led digital transformation and full cycle product engineering services company headquartered in San Jose, CA.” Source: RevenueBase Database · checked Sep 17, 2026
5	dev.pro	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	501-1,000	997 contacts →
	Partial evidence “Dev.Pro helps innovative technology companies scale their business by leveraging our software engineering expertise to support them every step of the way.” Source: RevenueBase Database · checked Sep 17, 2026
6	ARI	Strong evidence	East Peoria, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	979 contacts →
	Strong evidence “ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Source: RevenueBase Database · checked Sep 17, 2026
7	Technosoft Engineering	Strong evidence	Morrisville, NC, United StatesHQ checked Sep 17, 2026	501-1,000	833 contacts →
	Strong evidence “Technosoft Engineering is a global provider of Digital Engineering & Consulting, Product Engineering, Manufacturing Engineering with substantial operations in North America and…” Source: RevenueBase Database · checked Sep 17, 2026
8	Zemoso Technologies	Indirect evidence	Farmers Branch, TX, United StatesHQ checked Sep 17, 2026	501-1,000	750 contacts →
	Indirect evidence “Our enterprise and startup customers partner with us to incubate new digital solutions and technologies.” Source: RevenueBase Database · checked Sep 17, 2026
9	Msys Technologies	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	201-500	688 contacts →
	Strong evidence “MSys Technologies (SDC Awards Winner) is a reliable partner for product engineering services and digital transformation projects for its Enterprise and Silicon Valley clientele.” Source: RevenueBase Database · checked Sep 17, 2026
10	RFA Engineering	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 17, 2026	201-500	468 contacts →
	Indirect evidence “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Source: RevenueBase Database · checked Sep 17, 2026
11	Taazaa INC	Strong evidence	Hudson, OH, United StatesHQ checked Sep 17, 2026	201-500	446 contacts →
	Strong evidence “Taazaa is a product engineering and custom software company (founded 2007) that helps mission-minded organizations stay relevant using agile, design-based development.” Source: RevenueBase Database · checked Sep 17, 2026
12	Triple Crown	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	322 contacts →
	Partial evidence “Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Source: RevenueBase Database · checked Sep 17, 2026
13	Zealogics INC	Partial evidence	Branchburg, NJ, United StatesHQ checked Sep 17, 2026	501-1,000	321 contacts →
	Partial evidence “Zealogics Inc provides a broad range of IT and Engineering Services, Systems Implementation and Application Outsourcing Services through an optimized global delivery model.” Source: RevenueBase Database · checked Sep 17, 2026
14	UST Xpanxion	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 17, 2026	501-1,000	294 contacts →
	Strong evidence “UST Xpanxion provides product development and engineering services to enterprise clients in a variety of industries worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
15	Sigma Design	Indirect evidence	Camas, WA, United StatesHQ checked Sep 17, 2026	201-500	285 contacts →
	Indirect evidence “Sigma Design is where the best go to innovate.” Source: RevenueBase Database · checked Sep 17, 2026
16	EWI	Partial evidence	Columbus, OH, United StatesHQ checked Sep 17, 2026	51-200	256 contacts →
	Partial evidence “EWI empowers industry leaders to overcome complex manufacturing challenges and integrate new processes to bring products to market more quickly and efficiently.” Source: RevenueBase Database · checked Sep 17, 2026
17	Excellarate	Indirect evidence	Scottsdale, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	252 contacts →
	Indirect evidence “At Excellarate, we strive to excel with innovation, offering our clients accelerated time-to-market, and deep domain expertise in HealthTech, FinTech, and InsurTech.” Source: RevenueBase Database · checked Sep 17, 2026
18	47billion	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 17, 2026	51-200	246 contacts →
	Strong evidence “47Billion, as the name suggests, drives innovation with its product engineering capabilities and IT services.” Source: RevenueBase Database · checked Sep 17, 2026
19	Transcenda	Partial evidence	Hq In Michigan, United StatesHQ checked Sep 17, 2026	201-500	236 contacts →
	Partial evidence “Transcenda provides strategy, design, and engineering for the AI era.” Source: RevenueBase Database · checked Sep 17, 2026
20	rapidise.io	Strong evidence	Milpitas, CA, United StatesHQ checked Sep 17, 2026	n/a	232 contacts →
	Strong evidence “Rapidise.io is the world’s first and only AI & Blockchain-enabled TTaaS platform which accelerates product engineering by providing you with global access to companies with…” Source: RevenueBase Database · checked Sep 17, 2026
21	Kaizen Technologies	Partial evidence	Edison, NJ, United StatesHQ checked Sep 17, 2026	201-500	230 contacts →
	Partial evidence “Kaizen Technologies Inc, NJ is an Information Technology and Engineering Services company.” Source: RevenueBase Database · checked Sep 17, 2026
22	Granite River Labs INC	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 17, 2026	201-500	222 contacts →
	Partial evidence “GRL is the world’s leading Engineering Services firm helping engineers solve difficult hardware design and validation challenges in adopting digital interface technologies.” Source: RevenueBase Database · checked Sep 17, 2026
23	Codevyasa	Strong evidence	Jacksonville, FL, United StatesHQ checked Sep 17, 2026	501-1,000	216 contacts →
	Strong evidence “CodeVyasa is a Software Product-Engineering and Development company that helps Early-stage & Mid-Market Product companies with IT Consulting, App Development, and On-demand Tech…” Source: RevenueBase Database · checked Sep 17, 2026
24	Invecas	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 17, 2026	201-500	209 contacts →
	Indirect evidence “INVECAS Technologies Pvt.” Source: RevenueBase Database · checked Sep 17, 2026
25	Andrews Cooper	Partial evidence	Mcminnville, OR, United StatesHQ checked Sep 17, 2026	51-200	199 contacts →
	Partial evidence “Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: product engineering service providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names product engineering service providers.
Partial evidence: Its own public description names part of product engineering service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name product engineering service providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,240 product engineering service providers based in the United States

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Product engineering service providers based in the United States at a glance

As of Sep 17, 2026

32.8%Verified-email coverage

22.7Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · San Francisco

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,339

11-50

581

51-200

231

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,240 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among product engineering service providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “product engineering service providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names product engineering service providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among product engineering service providers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 16,701 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Product engineering service providers by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names product engineering service providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many product engineering service providers are there based in the United States?

RevenueBase identified 2,240 product engineering service providers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Plexus Corp, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most product engineering service providers?

San Francisco leads with 52 headquartered companies, followed by Austin (49) and New York (48).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 16,701 verified decision-maker contacts tracked across these 2,240 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.