Sample supplier report · October 21, 2026

US e-mobility battery pack suppliers

Battery pack manufacturers in the US for e-mobility” Assumed: any volume · ISO 9001, UL 2271The buyer’s question, as they typed it. Assumed: Assumed: any volume · ISO 9001, UL 2271.

The answer

Send the RFQ to American Battery Solutions, Inventus, Re:Build and Navitas; 12 questions to settle first. Lead with American Battery Solutions, second-source Inventus Power: ABS builds up to 50,000 packs a year in Ohio; Inventus has UL2271-certified packs.

The shortlist

Rank	Supplier	Role	Where	Score
1	American Battery Solutions	Lead	United States	20 / 20
2	Inventus Power	Second source	United States	18 / 20
3	Re:Build Manufacturing	Fallback	United States	18 / 20
4	Navitas Systems	Fallback	United States	16 / 20
5	Epec Engineered Technologies	Watch	—	12 / 20

Scorecard, criterion by criterion

Criterion	American Battery Solutions	Inventus	Re:Build	Navitas	Epec
E-mobility packs ×2Your ask	8	8	6	4	2
US manufacturing ×2Your ask	8	6	8	8	6
Pack assembly	4	4	4	4	4
Total of 20	20	18	18	16	12

Points as weighted: the buyer’s asks count double where marked. A dash means nothing published backs a score, so it isn’t counted as zero.

The suppliers

American Battery Solutions

Lead · United States

The largest US pack output found, at one Ohio plant serving light vehicles. Plant rated for up to 50,000 EV packs a year at full capacity. Capacity sits at the Advanced Battery Manufacturing Center in the US.

Inventus Power

Second source

Holds UL2271 certification on low-speed vehicle packs and builds in Illinois. PROTRXion HD packs certified to UL2271 for low-speed electric drivetrains. Headquartered in Woodridge, Illinois, founded 1960.

Re:Build Manufacturing

Fallback

US pack builder with registered ISO 9001 sites and a battery business. New Kensington, PA site certified to ISO 9001 and AS9100 in August 2025. Partners with Alsym Energy on sodium-ion battery production.

Key findings

Re:Build leads on plant area at 175,000 sq ft; next Navitas at 48,000 sq ft.
American Battery Solutions names the most customers (5); Re:Build next (4).
Changes to watch at Re:Build.

Settle these before you send the RFQ

Q1Confirm in writing: ISO 9001.
Q2Confirm in writing: UL 2271.
Q3Ask every bidder for its output per month at the plant that would build the order.
Q4Ask every bidder for the floor area of the plant that would build the order.
Q5Ask every bidder which finishing steps it does in-house.
Q6UL 2271 certification status and ISO 9001 coverage of the Springboro, Ohio plant. (American Battery Solutions)
Q7Which plant builds UL2271 packs, and a current ISO 9001 certificate for Woodridge. (Inventus)
Q8UL 2271 experience and which site builds e-mobility packs. (Re:Build)
Q9ISO 9001 registrar, site and expiry; any light-vehicle pack programs. (Navitas)

How the research was done

29 found → 16 fit the brief → 16 researched → 5 ranked. Every score in the full report links to the page it came from, and the open questions are written out for the RFQ.

Sources

Read the full report

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