Company lists · Data refreshed September 2026

Top 24 Contract manufacturing organizations based in China

Name: Contract manufacturing organizations based in China
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 299 companies tracked

RevenueBase identified 299 contract manufacturing organizations headquartered in China as of September 2026 and tracks 2,949 professional contacts across them, including 456 with verified work emails. Shenzhen is the largest hub.

This list covers contract manufacturing organizations headquartered in China, 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 16, 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 16, 2026 86% judged on-target in blind review

299Companies

2,949Contacts tracked

456Verified emails

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The 24 largest contract manufacturing organizations based in China

Ranked by team size

Top 24 of 299 contract manufacturing organizations based in China, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to contract manufacturing organizations: 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	Asymchem Group	Indirect evidence	Teda, ChinaHQ checked Sep 16, 2026	5,001-10,000	373 contacts →
	Indirect evidence “Asymchem (Stock Code: 002821.SZ / 6821.HK) is a leading global CDMO established in 1995 in North Carolina, U.S, dedicated to delivering integrated, end-to-end solutions across the…” Source: RevenueBase Database · checked Sep 16, 2026
2	Shenzhen Kaifa Technology Co.,ltd	Indirect evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	10001+	254 contacts →
	Indirect evidence “Shenzhen Kaifa Technology Co, Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
3	HJB	Indirect evidence	Hangzhou, ChinaHQ checked Sep 16, 2026	201-500	61 contacts →
	Indirect evidence “HJB, a subsidiary of Transcenta Holding Limited, is dedicated to providing high quality, speedy and flexible CDMO services for large molecules.” Source: RevenueBase Database · checked Sep 16, 2026
4	Camal Group	Partial evidence	Beijing, ChinaHQ checked Sep 16, 2026	11-50	43 contacts →
	Partial evidence “We help manufacturing business owners get good industrial materials from China.* We take care of everything from finding suppliers to delivery to your country.* Our service makes…” Source: RevenueBase Database · checked Sep 16, 2026
5	Morphomfg	Indirect evidence	Guangzhou, ChinaHQ checked Sep 16, 2026	11-50	40 contacts →
	Indirect evidence “If you have an idea for a product, we help you to create it by working with your team through every step (design, prototyping, sourcing, mass production, shipping & logistics…” Source: RevenueBase Database · checked Sep 16, 2026
6	EXIR	Strong evidence	Wuxi New District, ChinaHQ checked Sep 16, 2026	51-200	39 contacts →
	Strong evidence “Exir is a Swedish company with the main focus on Contract Manufacturing and manufacturing complete products for the global market.” Source: RevenueBase Database · checked Sep 16, 2026
7	Birdotech	Indirect evidence	Shanghai, ChinaHQ checked Sep 16, 2026	501-1,000	38 contacts →
	Indirect evidence “BirdoTech is a state-of-the-art CRO/CDMO.” Source: RevenueBase Database · checked Sep 16, 2026
8	Simerx	Indirect evidence	Shanghai, ChinaHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence “With over 20 years of experience, Simerx has grown into a key player in the global market, providing specialized, cost-efficient solutions across a wide range of industries.” Source: RevenueBase Database · checked Sep 16, 2026
9	Komaspec	Partial evidence	Huadu District(guangzhou), ChinaHQ checked Sep 16, 2026	201-500	24 contacts →
	Partial evidence “Komaspec is a Canadian-owned, vertically integrated contract manufacturer with production facilities in China, Vietnam, and Mexico, helping global brands as well as small and…” Source: RevenueBase Database · checked Sep 16, 2026
10	Altruist Biologics	Partial evidence	Suzhou City, ChinaHQ checked Sep 16, 2026	1,001-5,000	18 contacts →
	Partial evidence “Altruist Biologics is a reliable CDMO service provider, focusing on the development and commercial manufacturing of antibodies, fusion proteins, ADCs, and other drug products.” Source: RevenueBase Database · checked Sep 16, 2026
11	Asymbio	Indirect evidence	Shanghai, ChinaHQ checked Sep 16, 2026	501-1,000	16 contacts →
	Indirect evidence “Specializing in biologics, bioconjugates (ADCs, AOCs, PDCs, RDCs,APCs,DACs), antibodies and recombinant proteins, AsymBio, subsidiary of Asymchem Group, is a technology-driven…” Source: RevenueBase Database · checked Sep 16, 2026
12	Production Partners	Partial evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “WE ARE A SPECIALIZED CONTRACT MANUFACTURER With over 20 years experience, an extensive supplier network & a skilled team of dedicated professionals, Production Partners…” Source: RevenueBase Database · checked Sep 16, 2026
13	Orange Creatives FPI 橙创	Indirect evidence	Guangzhou, ChinaHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “Setting up production in China can feel overwhelming, but it doesn’t have to be.” Source: RevenueBase Database · checked Sep 16, 2026
14	Sphere Resources	Partial evidence	Dongguan, ChinaHQ checked Sep 16, 2026	11-50	7 contacts →
	Partial evidence “Sphere Resources is your gateway to effortless manufacturing in Asia.” Source: RevenueBase Database · checked Sep 16, 2026
15	The Sourcing Solution	Partial evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	1-10	7 contacts →
	Partial evidence “The Sourcing Solution is a contract manufacturer/sourcing provider/global logistics company working primarily with factories in Asia and Mexico.” Source: RevenueBase Database · checked Sep 16, 2026
16	FR International Group	Strong evidence	Guangzhou, ChinaHQ checked Sep 16, 2026	11-50	6 contacts →
	Strong evidence “Based in Guangzhou with over 8 years of experience, FR International specializes in contract manufacturing, project coordination, supplier management, and logistics for retail and…” Source: RevenueBase Database · checked Sep 16, 2026
17	Intellective BIO	Indirect evidence	Suzhou, ChinaHQ checked Sep 16, 2026	501-1,000	4 contacts →
	Indirect evidence “Intellective Bio (Suzhou) Co, Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
18	Shenzhen Breton Precision Model Co.,limited	Partial evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	51-200	4 contacts →
	Partial evidence “Shenzhen Breton Precision Model Co,Ltd is a high-quality supplier that provides comprehensive one-stop processing for manufacturing requires, our manufacturing capabilities cover…” Source: RevenueBase Database · checked Sep 16, 2026
19	Threegon SCF International Limited	Indirect evidence	ChinaHQ checked Sep 16, 2026	51-200	4 contacts →
	Indirect evidence “Welcome to Threegon!” Source: RevenueBase Database · checked Sep 16, 2026
20	Minimetal Shenzhen	Indirect evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	11-50	3 contacts →
	Indirect evidence “Who we are: MiniMetal is an Israeli-owned company located in Shenzhen, China.” Source: RevenueBase Database · checked Sep 16, 2026
21	Shenzhen Sourcingbro Technology Co., LTD	Indirect evidence	Shenzhen, ChinaHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “Located in Shenzhen, Sourcing Bro is in the heart of the global trade and thus, provides high-volume goods to clients around the globe.” Source: RevenueBase Database · checked Sep 16, 2026
22	Asytec Manufacturing	Indirect evidence	Foshan, ChinaHQ checked Sep 16, 2026	51-200	2 contacts →
	Indirect evidence “Depuis 2004, ASYTEC est implanté dans sa propre usine de production en Chine.” Source: RevenueBase Database · checked Sep 16, 2026
23	Reliant Industrial	Partial evidence	Ningbo 315155, ChinaHQ checked Sep 16, 2026	201-500	2 contacts →
	Partial evidence “Since its establishment in 2004, Reliant Industrial has been offering integrated, reliable and competitive industrial manufacturing solutions to customers willing to subcontract…” Source: RevenueBase Database · checked Sep 16, 2026
24	Wiseton Industries	Indirect evidence	Jiaxing, ChinaHQ checked Sep 16, 2026	51-200	2 contacts →
	Indirect evidence “Wiseton industries Wiseton manufacture precision, high-quality parts, assemblies and finished goods.” Source: RevenueBase Database · checked Sep 16, 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: contract manufacturing organizations. 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 contract manufacturing organizations.
Partial evidence: Its own public description names part of contract manufacturing organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contract manufacturing organizations. 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 24 of 299 contract manufacturing organizations based in China

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Contract manufacturing organizations based in China at a glance

As of Sep 16, 2026

15.5%Verified-email coverage

9.9Average contacts per company

51-200Median size (employees)

21.4%Largest-city concentration · Shenzhen

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

110

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 China, so it is reported there. Company counts and contact totals on this page are exact for China, over 299 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 contract manufacturing organizations, 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 China whose own description of what they do matches “contract manufacturing organizations”. 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 contract manufacturing organizations), 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 contract manufacturing organizations, and records with no verified work email. Companies headquartered outside China 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, 456 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 16, 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.

Contract manufacturing organizations by metro

Contract manufacturing organizations in Shenzhen64
Contract manufacturing organizations in Shanghai25

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 contract manufacturing organizations, 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 contract manufacturing organizations are there based in China?

RevenueBase identified 299 contract manufacturing organizations headquartered in China 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?

Asymchem Group, headquartered in Teda, tops this list with the largest team on record.

Which city has the most contract manufacturing organizations?

Shenzhen leads with 64 headquartered companies, followed by Shanghai (25) and Dongguan (22).

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 456 verified decision-maker contacts tracked across these 299 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 16, 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.