TBM

Active#5 in Japan

Estimated valuation · Limestone-based materials · Japan

Produces LIMEX, a limestone-based alternative to paper and plastic, and runs plastic recycling plants, supplying packaging and materials to brands and municipalities.

Materials›limestone-based materials tb-m.com

Founded2011

HQTokyo

RaisedJPY 23.4bn+

Last roundDec 2024

Country of originJapanListed in the Japan ranking

Where would you invest?JapanJurisdiction as cited by the ranking

Estimated valuation

AI · Japan ranking

≈ USD 890MUSD 440M–1.8bn · Hundreds of M$

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Published valuation: USD 889.5M · Dec 2024
AI adjustment: None

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Japan · all sectors	Top 50	#5	Edition 0 · October 2026	10 Jan 2027

Rank historyOct 2026 · #5First edition: no movements yet.

Funding history

JPY 23.4bn+ raised in total

Date	Round	Amount	Type	Investors
Dec 2024	—	Valued at about JPY 136.1bn (USD 890M) in a press survey of unicorns (Dec 2024)	—	—

No recent round amount disclosed.

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

Independent analyses

By industry professionals & analysts

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AI valuation: $890MUndervalued or overvalued?

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Who should acquire itStrategic buyers, and why

Who should it acquireAcquisition targets, and why

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What the AI reads

Read by the AI at the next edition.

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Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.