Company lists · Data refreshed September 2026

Top 13 Assembly manufacturers based in Hong Kong

RevenueBase identified 47 assembly manufacturers headquartered in Hong Kong as of September 2026 and tracks 1,423 professional contacts across them, including 250 with verified work emails. Hong Kong is the largest hub.

This list covers assembly manufacturers headquartered in Hong Kong, 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 30, 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 30, 2026 86% judged on-target in blind review
47Companies
1,423Contacts tracked
250Verified emails
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The 13 largest assembly manufacturers based in Hong Kong

Ranked by team size
Top 13 of 47 assembly manufacturers based in Hong Kong, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to assembly manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHong KongHQ checked Sep 30, 20265,001-10,000926 contacts →

Indirect evidence

“For 40 years, Hayco has been the partner of choice for the world’s leading FMCG companies and retailers.”

Source: RevenueBase Database · checked Sep 30, 2026
2Partial evidenceHong KongHQ checked Sep 30, 202610001+163 contacts →

Partial evidence

“Established in 1988, Belton Technology Group is ISO 9001, 14001, certified and UL listed components and full turnkey contract manufacturer of - Flexible Printed Circuit Boards -…”

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceKowloon Bay, Hong KongHQ checked Sep 30, 20261,001-5,00031 contacts →

Indirect evidence

“Wise Ally Holdings Limited aims to provide one-stop solutions to global companies with competent engineering expertise, sophisticated manufacturing facilities & non-compromised…”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceHong KongHQ checked Sep 30, 202611-5025 contacts →

Indirect evidence

“With 30 years of experience, our women-led team is a trusted manufacturing partner offering both tailor-made and full service options to startups and established brands.”

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceHong KongHQ checked Sep 30, 202651-20013 contacts →

Indirect evidence

“Step into the world of manufacturing excellence with SEVCO, your trusted partner in China and Mexico.”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceTsim Sha Tsui, Hong KongHQ checked Sep 30, 202651-20013 contacts →

Indirect evidence

“M-Tek is a premier electronics manufacturing service provider founded in 1993.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceKowloon City, Hong KongHQ checked Sep 30, 202611-507 contacts →

Indirect evidence

“Established in 1991, Focus Industries is a global organization, headquartered in Hong Kong Manufacturing products for global markets and delivering the latest products to…”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceN.T., Hong KongHQ checked Sep 30, 202651-2005 contacts →

Indirect evidence

“Professional EMS Provider”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceKwun Tong District, Hong KongHQ checked Sep 30, 202611-505 contacts →

Indirect evidence

“We are a full-fledged manufacturing & trading company offering services from cutting edge research and development, talented merchandising, responsible quality assurance and…”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceKowloon, Hong KongHQ checked Sep 30, 202611-503 contacts →

Indirect evidence

“Shivina Manufacturing has a very dedicated team, with offices in Hong Kong and the USA we are growing rapidly and increasing business everyday.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceKowloon, Hong KongHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

“CIMECO Limited is a manufacturing outsourcing and supply chain management company with offices in Hong Kong and Zhongshan in Guangdong Province on mainland China.”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceKwun Tong District, Hong KongHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“We are a sourcing company that provides services all the way from design and production to quality control and logistics.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceHong, Hong KongHQ checked Sep 30, 2026201-5001 contacts →

Indirect evidence

“A&T Design was established in 1978 and prides itself in being the rare design company that has the capacity to coordinate design, fabrication, delivery and installation all under…”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 13 of 47 assembly manufacturers based in Hong Kong

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Assembly manufacturers based in Hong Kong at a glance

As of Sep 30, 2026
17.6%Verified-email coverage
30.3Average contacts per company
51-200Median size (employees)
23.4%Largest-city concentration · Hong Kong
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
15
51-200
7
201-500
5
501-1,000
2
1,001-5,000
8
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Hong Kong, so it is reported there. Company counts and contact totals on this page are exact for Hong Kong, over 47 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 assembly manufacturers, 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 Hong Kong whose own description of what they do matches “assembly manufacturers”. 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 assembly manufacturers), 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 assembly manufacturers, and records with no verified work email. Companies headquartered outside Hong Kong 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, 250 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 30, 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.

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 assembly manufacturers, 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 assembly manufacturers are there based in Hong Kong?

RevenueBase identified 47 assembly manufacturers headquartered in Hong Kong 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?

HAYCO, headquartered in Hong Kong, tops this list with the largest team on record.

Which city has the most assembly manufacturers?

Hong Kong leads with 11 headquartered companies, followed by Kowloon (11) and Hong (7).

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 250 verified decision-maker contacts tracked across these 47 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 30, 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.