Company lists · Data refreshed September 2026

Top 25 Battery pack assemblers worldwide

RevenueBase identified 1,517 battery pack assemblers worldwide as of September 2026 and tracks 38,241 professional contacts across them, including 8,105 with verified work emails. China is the largest market and Shenzhen the largest hub.

This list covers battery pack assemblers worldwide, 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 19, 2026. Country and city lists for battery pack assemblers follow the table.

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 19, 2026 86% judged on-target in blind review
1,517Companies
38,241Contacts tracked
8,105Verified emails
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The 25 largest battery pack assemblers worldwide

Ranked by team size
Top 25 of 1,517 battery pack assemblers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to battery pack assemblers: 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 evidenceNing De, ChinaHQ checked Sep 19, 202610001+2,534 contacts →

Indirect evidence

“CATL is a global leader in innovative zero-carbon technology, providing comprehensive energy solutions to accelerate the global transition toward a sustainable future.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceLevallois-perret, FranceHQ checked Sep 19, 20261,001-5,0002,322 contacts →

Partial evidence

“Saft specializes in advanced technology battery solutions for industry, from the design and development to the production, customization and service provision.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceSalzgitter, GermanyHQ checked Sep 19, 20261,001-5,0001,880 contacts →

Partial evidence

“At PowerCo, we are shaping the battery future.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceWoodridge, IL, United StatesHQ checked Sep 19, 20261,001-5,0001,198 contacts →

Partial evidence

“Inventus Power is the leading provider of advanced battery and power systems for global OEMs.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceGennevilliers, FranceHQ checked Sep 19, 20265,001-10,0001,077 contacts →

Indirect evidence

“Exide Technologies in EMEA & Asia-Pacific is a standalone company.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceWarren, OH, United StatesHQ checked Sep 19, 20261,001-5,000847 contacts →

Partial evidence

“Electricity is the future of transportation, powered by battery cells that are designed and manufactured by some of the brightest, most innovative people in the world.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceYokohama, JapanHQ checked Sep 19, 202610001+730 contacts →

Partial evidence

“AESC is a global leader in the development and manufacturing of high-performance batteries for zero-emission electric vehicles(EV) and energy storage systems(ESS).”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceBengaluru, IndiaHQ checked Sep 19, 2026501-1,000599 contacts →

Partial evidence

“Agratas is a global battery business within the Tata Group.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceChicago, United StatesHQ checked Sep 19, 2026n/a578 contacts →

Strong evidence

“National Power Corporation is a leading custom battery pack assembler servicing the needs of a Global OEM market.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceUnited StatesHQ checked Sep 19, 2026501-1,000548 contacts →

Indirect evidence

“Tata AutoComp Systems Ltd.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceNovi, MI, United StatesHQ checked Sep 19, 20261,001-5,000530 contacts →

Partial evidence

“A123 Systems, LLC develops and manufactures advanced Nanophosphate® lithium iron phosphate batteries and energy storage systems that deliver high power, maximize usable energy…”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceUnited StatesHQ checked Sep 19, 20261,001-5,000424 contacts →

Partial evidence

“IONCOR is an agile independent battery solutions company with Nordic roots and decades of experience as a leading partner for some of the world’s most admired brands.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceAnkara, TürkiyeHQ checked Sep 19, 20261,001-5,000389 contacts →

Indirect evidence

“Yiğit Akü A.Ş; established in Ankara in 1976, is one of the strong investors in our rapidly developing country.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceRichmond, CA, United StatesHQ checked Sep 19, 20261,001-5,000335 contacts →

Partial evidence

“Octillion is a California-based Tier 1 supplier of innovative high-density battery systems and related technology focused on the electrification of major industries such as…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceDouai, FranceHQ checked Sep 19, 20261,001-5,000319 contacts →

Partial evidence

“AESC is a global leader in the development and manufacturing of high-performance batteries for electric vehicles and energy storage systems.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceKayseri, TürkiyeHQ checked Sep 19, 2026201-500281 contacts →

Indirect evidence

“Türk Silahlı Kuvvetlerini Güçlendirme Vakfı’nın %98 oranında iştiraki olan ASPİLSAN Enerji, Kayserili hayırseverlerin bağışlarıyla 2 Nisan 1981 tarihinde Kayseri Organize Sanayi…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceGliwice, PolandHQ checked Sep 19, 20261,001-5,000266 contacts →

Indirect evidence

“Grupa BMZ to wiodący na świecie dostawca inteligentnych systemów zasilania i magazynowania energii opartych o technologię litowo-jonową.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceFrankfurt Am Main, GermanyHQ checked Sep 19, 202610001+234 contacts →

Partial evidence

“We are SVOLT - a globally renowned large-scale manufacturer of battery cells and energy storage systems, and a recognized Bloomberg Tier 1 supplier.”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceNoida, IndiaHQ checked Sep 19, 2026201-500214 contacts →

Partial evidence

“CLN Energy Limited is a BSE-SME listed company specializing in the design and manufacturing of advanced lithium-ion battery solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceKarlstein Am Main, GermanyHQ checked Sep 19, 20261,001-5,000197 contacts →

Partial evidence

“Global player in lithium-ion battery system Solutions BMZ Group is a global player in the production of lithium-ion system solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
21Strong evidenceBurnaby, BC, CanadaHQ checked Sep 19, 2026201-500191 contacts →

Strong evidence

“Greenlight Innovation is the leading global supplier of testing and manufacturing solutions for hydrogen fuel cells, electrolysers, and lithium batterie packs.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidencePruszkow, PolandHQ checked Sep 19, 2026201-500180 contacts →

Indirect evidence

“Impact Clean Power Technology SA jest wiodącym producentem systemów bateryjnych dla transportu publicznego, robotów AGV i stacjonarnych magazynów energii.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceBengaluru, IndiaHQ checked Sep 19, 202651-200179 contacts →

Indirect evidence

“Maxwell, a subsidiary of Endurance Technologies Limited, is driving the future of the EV industry with innovative advanced electronics.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceGothenburg, SwedenHQ checked Sep 19, 202651-200166 contacts →

Partial evidence

“We’re building a first-of-its-kind Li-ion battery Gigafactory in Gothenburg, Sweden, equipped with the expertise and technology to craft state-of-the-art batteries.”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceGurgaon, IndiaHQ checked Sep 19, 202651-200149 contacts →

Strong evidence

“Lithium-ion Battery packs assembly manufacturer.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,517 battery pack assemblers worldwide

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Battery pack assemblers worldwide at a glance

As of Sep 19, 2026
21.2%Verified-email coverage
25.2Average contacts per company
51-200Median size (employees)
11.8%Largest-city concentration · Shenzhen
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
277
11-50
375
51-200
388
201-500
216
501-1,000
97
1,001-5,000
105
5,001-10,000
27
10001+
29

Email recency is reported on each country list linked below.

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 battery pack assemblers, 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.
Coverage
Every country. Country and city lists for battery pack assemblers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “battery pack assemblers”. 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 battery pack assemblers), 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 battery pack assemblers, and records with no verified work email.
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, 8,105 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 19, 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.

Battery pack assemblers by location

6 lists · largest first

Every Battery pack assemblers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 battery pack assemblers, 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 battery pack assemblers are there worldwide?

RevenueBase identified 1,517 battery pack assemblers worldwide 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?

CATL, headquartered in Ningde, tops this list with the largest team on record.

Which country has the most battery pack assemblers?

China leads with 574 companies, followed by India (182) and the United States (166). Every battery pack assemblers list by country and city is linked on this page.

Which city has the most battery pack assemblers?

Shenzhen leads with 179 headquartered companies, followed by Dongguan (24) and Huizhou (19).

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 8,105 verified decision-maker contacts tracked across these 1,517 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 19, 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.