PROTO CORPORATION

Public

—N/Ahttps://www.proto-g.co.jp/

PROTO CORPORATION is now publicly traded

The data on this page reflects PROTO CORPORATION's private-market history up to the point it went public, including its funding rounds, valuation, and investors.

Went Public

Sep 12, 2001

Last Round

Buyout/LBO

Feb 4, 2025

Est. Valuation at Exit

$345.71M

Total Funding Raised

$379.04M

Company Overview

PROTO CORPORATION is a Japanese mobility and information services company that operates the 'Goo-net' portal and provides various digital platform, commerce, and business support services for the automotive industry.

AI Layer

Application

Keywords

used car portalautomotive marketplacedealer management systemDMSautomotive SaaSvehicle inspectioncar listing platformauto dealer softwareinventory managementautomotive advertisingauto techmaintenance shop bookingautomotive appraisalB2B marketplacecar sales support

PROTO CORPORATION Comparables

Compare PROTO CORPORATION with similar companies based on industry and business-model similarity.

PROTO CORPORATION comparables — related companies by embedding similarity
Company	Similarity	Market Cap
Recruit Holdings	82%
Kakaku.com, Inc.	71%
Scout24 SE	71%

View all Comparables

PROTO CORPORATION Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Buyout/LBO	Feb 4, 2025
IPO	Sep 12, 2001

View all Funding Rounds

PROTO CORPORATION Investors

Notable investors and investment history

PROTO CORPORATION investors
Investor	Rounds
Nomura Securities	IPO

View all Investors

PROTO CORPORATION Filings

SEC and related filings with document metadata.

Data table
Typed	Date	Amount Offered	Amount Sold	Filling	Pages	Download
Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation
Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation
Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation
Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation	Sign Up to view	Mock Valuation

PROTO CORPORATION Filings

SEC and related filings with document metadata.

Firmographic Details

Headquarters—

Employee Range59

Year Founded1977

Last FundingFeb 4, 2025

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.