When was Spiber founded?

Spiber was founded in 2007 and became a unicorn in 2021, reaching the milestone in 14 years. It raised its 1st funding round 4 years after its incorporation.

Where is Spiber located?

Spiber is headquartered in Tsuruoka, Japan.

How many employees does Spiber have?

As of Sep 30, 2026, the latest employee count at Spiber is 79.

Is Spiber a funded company?

Spiber is a funded company, having raised a total of $489M across 9 funding rounds to date. The company's 1st funding round was a $5.27M Series A round, raised on Dec 16, 2011.

How much is Spiber worth?

The latest valuation of Spiber is $1.22B as of Sep 08, 2021.

When was the latest funding round of Spiber?

Spiber's latest funding was a $65.3M Series E round on Apr 12, 2024, with participation from 0 investor.

Is Spiber a Advanced Materials company?

The primary sectors of Spiber are Advanced Materials, Fashion Tech and Textile Yarn.

Where does Spiber rank among its competitors?

Spiber ranks 2nd amongst 6 active competitors, of which 3 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Synflux, which secured $1.7M in Jan, 2026.

Who are the top competitors of Spiber?

Spiber's top competitors include Lenzing, Synflux and Morus. Among them, Synflux secured the most recent funding round in January, 2026.

Spiber - 2026 Company Profile, Team, Funding & Competitors

Spiber is a series E company based in Tsuruoka (Japan), founded in 2007 by Kazuhide Sekiyama and Junichi Sugahara. It operates as a Provider of sustainable fabric materials. Spiber has raised $489M in funding from investors like The Carlyle Group, GOLDWIN and Shinsei Bank, with a current valuation of $1.22B. The company has 6 active competitors, including 3 funded and 1 that has exited. Its top competitors include companies like Lenzing, Synflux and Morus.

Sectors and market segments that Spiber operate in

Spiber serves in the High Tech, Chemicals and Materials Tech, Retail, Chemicals and Materials market segments.The primary business model of Spiber are:

Company Details

Provider of sustainable fabric materials. It develops microbially fermented brewed protein-based yarns. It uses plant-derived biomass and a fermentation process including sugar and microbes to develop its products. It has applications in the textile industry.

Website: spiber.inc/en
Email ID: *****@spiber.inc

Key Metrics

Founded Year

2007

Location

Tsuruoka, Japan

Stage

Series E

Total Funding

$489M in 9 rounds

Latest Funding Round

Series E, Apr 12, 2024, $65.3M

Post Money Valuation

$1.22B as on Sep 08, 2021

Investors

The Carlyle Group & 9 more

Ranked

2^nd among 6 active competitors

Employee Count

79 as on Sep 30, 2026

Similar Companies

Syntetica & 175 more

View Spiber's full profile

Spiber is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Reports
Siber Inc. CIN: 390001008354 , Japan, Active	Sep 26, 2007	-	-	-

Spiber has raised a total funding of $489M over 9 rounds. Its first funding round was on Dec 16, 2011. Spiber has 10 institutional investors.

Here is the list of recent funding rounds of Spiber:

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Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Apr 12, 2024	$65.3M	Series E	-	-	-	-
Sep 08, 2021	$313M	Series E	$1.22B	-	The Carlyle Group	Fidelity Investments, Baillie Gifford, Cool Japan Fund
Dec 01, 2018	$44.1M	Series D	$1B	-	Cool Japan Fund	-

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View details of Spiber's funding rounds and investors

The founders of Spiber are Kazuhide Sekiyama and Junichi Sugahara. Kazuhide Sekiyama is the CEO of Spiber.

Here are the details of Spiber's key team members:

Kazuhide Sekiyama: Co-Founder & CEO of Spiber.
Junichi Sugahara: Co-Founder & CTO of Spiber.
Contact Info: 1 email address

View details of Spiber's Founder profiles and Board Members

Spiber's employee count trend

Spiber has 79 employees as of Sep 26. Here is Spiber's employee count trend over the years:

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Top competitors of Spiber include Lenzing, Synflux and Morus. Here is the list of Top 10 competitors of Spiber, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Lenzing 1939, Lenzing (Austria), Public	Developer of wood-based sustainable fabrics	-	Austria Wirtschaftsservice, Suzano & 3 others	64/100
2nd	Spiber 2007, Tsuruoka (Japan), Series E	Provider of sustainable fabric materials	$489M	Fidelity Investments, Baillie Gifford & 8 others	43/100
3rd	Synflux 2019, Chuo (Japan), Seed	Company developing sustainable fashion with the help of digital technology	$4.6M	GOLDWIN, SAZABY LEAGUE & 10 others	42/100
4th	Morus 2021, Shibuya (Japan), Series A	Developer of silkworm-derived powder for food, beverage, and nutrition applications	$5.27M	ANRI, Samurai Incubate & 8 others	37/100
5th	Teijin Frontier 2012, Osaka (Japan), Unfunded	Manufacturer of sustainable fabrics for industrial applications and the textile industry	-	-	27/100
6th	Chongheng 2014, Bangkok (Thailand), Unfunded	Provider of plant-based alternative leather materials	-	-	16/100