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APTO

APTO

Private
TokyoAI, Data & Cloud Infrastructurehttps://apto.co.jp/

Last Round

Seed

Dec 22, 2020

Total Funding Raised

$580,000

Momentum

Top 50%

of companies Caplight tracks

Company Overview

APTO is an artificial intelligence company that provides high-quality training data, annotation services, and AI development platform solutions for machine learning and generative AI.

Sector

AI, Data & Cloud Infrastructure

Verticals

AI Training Infrastructure, ML Platforms, Synthetic Data, NLP & Conversational AI, Computer Vision

Business Model

B2B

Customer Profile

Services & Consulting, Usage-Based SaaS

AI Layer

Infrastructure

Keywords

data annotationAI training datadata labelingcrowdsourcing platformRLHFreinforcement learning from human feedbackdata collectionhuman-in-the-loopdataset creationmachine learning infrastructuredata pipelinedata cleaningAI data servicesdata prep

Historical Pricing

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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APTO Comparables

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

APTO comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
株式会社バオバブ
88%
FastLabel Inc.
83%
Global Walkers, Inc.
83%

APTO Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedDec 22, 2020

Key People

Founding team and executive leadership

Ryo Takashina

Chief Executive Officer

Executive Team

Yoichi Karino

Chief Operating Officer

Executive Team

APTO Investors

Notable investors and investment history

APTO investors
InvestorRounds
ANOBAKASeed, Series A
STRIVESeries A
Mitsui Sumitomo Insurance Capital Co., Ltd.Seed, Series A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jun 19, 2026

    Grew 30% QoQ from 10 to 13 employees.

  • May 25, 2026

    Grew 33% QoQ from 9 to 12 employees.

APTO Filings

Explore SEC and related filing metadata, where available.

APTO filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about APTO's valuation, stock price, and market status.

Is APTO a public or private company?

APTO is a private company.

What is the current stock price of APTO?

APTO is a private company with no public stock price. Caplight tracks APTO's secondary market activity and provides MarketPrice™ estimates to Caplight users.

How much is APTO worth (valuation)?

Valuation information for APTO is not publicly available.

Can I buy APTO stock?

APTO shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was APTO's last funding round?

APTO's most recent funding round was Seed on December 22, 2020.

Who are the main investors in APTO?

Key investors in APTO include Mitsui Sumitomo Insurance Capital Co., Ltd..

Will APTO IPO soon?

No public IPO plans have been announced for APTO.

How can I track APTO secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor APTO's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersTokyo
Employee Range14
Year Founded2020
Last FundingDec 22, 2020

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