When was Microporous founded?

Microporous was founded in 1934 and raised its 1st funding round 79 years after it was founded.

Where is Microporous located?

Microporous is headquartered in Piney Flats, United States. It is registered at Piney Flats, Tennessee.

How many employees does Microporous have?

As of Jul 31, 2026, the latest employee count at Microporous is 118.

Is Microporous a funded company?

Microporous is a funded company, having raised a total of $23M across 4 funding rounds to date. The company's 1st funding round was a $***** Conventional Debt round, raised on Dec 2013.

When was the latest funding round of Microporous?

Microporous' latest funding was a $***** Conventional Debt round on Aug 03, 2026, with participation from 2 investors.

Where does Microporous rank among its competitors?

Microporous ranks 2nd amongst 27 active competitors, of which 5 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Microporous, which secured an undisclosed amount in Apr, 2026.

Who are the top competitors of Microporous?

Microporous' top competitors include SK ie technology, Entek and Polypore. Among them, Microporous secured the most recent funding round in August, 2026.

Microporous - 2026 Company Profile, Funding & Competitors

Company Details

Microporous is a highly specialized manufacturer of battery separators for flooded lead acid batteries. These battery separators are used by battery manufacturers for applications such as golf car batteries, forklift batteries, standby power, and Starting Lighting and Ignition (“SLI”) batteries for automotive, truck and bus. Microporous currently operates two plants, one in Piney Flats, Tennessee, and one in Feistritz, Austria

Website: microporous.net
Social
Email ID: *****@microporous.at
Registered Address: Piney Flats, Tennessee

Key Metrics

Founded Year

1934

Location

Piney Flats, United States

Stage

Acquired

Total Funding

$23M in 4 rounds

Latest Funding Round

Conventional Debt, Aug 03, 2026, $*****

Investors

Kayne Anderson Capital Advisors & 7 more

Ranked

2^nd among 27 active competitors

Employee Count

118 as on Jul 31, 2026

Investment & Acquisitions

Seven Mile Capital Partners

Similar Companies

Entek & 7 more

Exit Details

Acquired by Seven Mile Capital Partners (Sep 30, 2013)

View Microporous' full profile

Microporous is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
Microporous, Llc CIN: 274265702 , United States, Active	Dec 26, 999	-	109 (As on Dec 31, 2024)	-
MICROPOROUS, LLC CIN: 27-4265702 , United States, Active	Jan 01, 1934	-	150 (As on Dec 31, 2022)	-

Microporous got acquired by Seven Mile Capital Partners on Sep 30, 2013 at an acquisition amount of $*****.

Click here to take a look at Microporous's acquisition in detail

Microporous has raised a total funding of $23M over 4 rounds. Its first funding round was on Dec 2013. Its latest funding round was a Conventional Debt round on Aug 03, 2026 for $*****. 2 investors participated in its latest round. Microporous has 8 institutional investors.

Here is the list of recent funding rounds of Microporous:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Aug 03, 2026	2359983	Conventional Debt	2554162	8419329	6988979	9604541
Apr 30, 2026	7663333	Seed	8598630	1279026	8837829	Trent Capital Partners & 2 more
Dec 2013	2146819	PE	6286285	3697598	Kayne Anderson Capital Advisors	4266909

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View details of Microporous's funding rounds and investors

Microporous' employee count trend

Microporous has 118 employees as of Jul 26. Here is Microporous's employee count trend over the years:

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Top competitors of Microporous include SK ie technology, Entek and Polypore. Here is the list of Top 10 competitors of Microporous, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	SK ie technology 2019, Seoul (South Korea), Public	Provider of nanotechnology based Li-ion battery separators	-	-	55/100
2nd	Microporous 1934, Piney Flats (United States), Acquired	Manufacturers of battery separators	$23M	Ingleside Investors, Elda River & 6 others	51/100
3rd	Entek 1984, Lebanon (United States), Acquired	Battery component developers	-	DOE, Blue Chip Venture & 2 others	51/100
4th	Polypore 2016, Charlotte (United States), Public	Manufacturer of microporous membranes for lithium-ion and lead-acid battery applications	-	-	46/100
5th	Optodot 2000, Woburn (United States), Acquired	Developerof nanoporous separators for batteries	-	LG Technology Ventures, DOE & 2 others	41/100
6th	Vimano 2019, Bengaluru (India), Seed	Manufacturer of nanotech membranes for energy storage and fuel cells	$3M	Anicut Capital, Ankur Capital & 4 others	40/100
7th	Dexmet 1948, Wallingford (United States), Acquired	Expanded metal and foil solutions for diverse engineering applications	-	Abacus Finance Group, Avante Capital Partners ... & 1 others	38/100
8th	PolyPlus 1991, San Francisco (United States), Funding Raised	Innovating next-generation battery technology with glass-protected lithium and seawater batteries	-	OSTI, Military Health & 1 others	36/100
9th	Senior Technology Material 2003, Shenzhen (China), Public	Manufacturer of lithium battery separator	-	Oriental Fortune Capital, Shenzhen New Henglida Capital Management ... & 1 others	35/100
10th	Senior Europe 2003, Eskilstuna (Sweden), Funding Raised	Provider of separator film for lithium-ion battery	-	Europa	34/100