hootfolio
Research Institutes · Machine Learning
2open roles
2backers · Plug and Play, NVCC
50+team · employees, estimated range
2022founded
Overview
hootfolio is a Japanese startup carved out of NEC research that offers causal analysis, an AI solution that reveals cause and effect in data without code. It raised funding in 2025 from Quantum Leaps Ventures and United and hires tech leads, SRE, operations, research and product engineers and customer success staff. The company is based in Japan.
Key facts
As of Nov 13, 2026, Alion lists 2 open roles at hootfolio. hootfolio is headquartered in Tokyo, Japan. It was founded in 2022.
- Open roles
- 2Job postings Alion tracks, as of Nov 13, 2026
- Headquarters
- Tokyo, JapanAlion company profile, updated Nov 13, 2026
- Founded
- 2022Alion company profile, updated Nov 13, 2026
- Employees
- 50+Alion company profile, an estimated range
- Technologies in its job postings
- 17Named in its job postings
Funding and backers
Team
51-200
employees, estimated range
Hiring now
2
open roles
Backers
2
Plug and Play, NVCC
Momentum
15/100
in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jan 26, 2025
Launched hootfolio, Inc., a Provider of Causal Analysis Technology, Launches Business Development · Nasdaq
2022
Founded
Tractionpublic signals, read monthly
Web presence
top 8%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
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Jobs
Apply
Growth
Hiring Momentum
26/100
Slowing
Open positions
2
0 opened / 0 closed in 30 days
Median time-to-fill
295 days
faster than 4% of the market
ATS activity
Every ~6 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
50% ▼
Industrial Engineering
50% ▼
Activity Timeline
New location: Tokyo
Oct 2026
Tech stack
Technologies named in job postings at hootfolio over the last 12 months, by layer, with the share of postings for each.
Technologies in use
17
Postings analysed
4
Stack modernity
80/100AI adopter
Languages
Python
Frameworks & libraries
NumPy
Cloud & platforms
Amazon ECS
Amazon EKS
GitHub
AWS
AI & ML
LLM
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Full hootfolio tech stack
17 technologies · by team · pay by technology · changes · similar stacks
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
NVCCVia a fund
Plug and PlayVia a fund
2741 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
Shared investors
News
プレスリリース：株式会社hootfolio、滋賀大学大学院データサイエンス研究科で因果AIの特別講義を実施PR TIMES
株式会社hootfolioフートフォリオ、東京都港区、以下 hootfolioは、2026年5月11日、滋賀大学大学院データサイエンス研究科博士前期課程の学生に向けて特別講義を実施しました本講義では、hootfolioが提供する因果AIソリューション「causal analysis(R)
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株式会社hootfolio、滋賀大学大学院データサイエンス研究科で因果AIの特別講義を実施 - PR TIMESリセマム
株式会社hootfolioフートフォリオ、東京都港区、以下 hootfolioは、2026年5月11日、滋賀大学大学院データサイエンス研究科博士前期課程の学生に向けて特別…
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NEC、神奈川県小田原市にて人事給与システムと庶務事務システムのデータとhootfolioの因果AIを活用した「組織の真因分析」の実証実験を開始
株式会社hootfolioのプレスリリース2026年3月18日 11時00分NEC、神奈川県小田原市にて人事給与システムと庶務事務システムのデータとhootfolioの因果AIを活用した「組織の真因分析」の実証実験を開始
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ZenX、NEC発のAI開発カーブアウト企業hootfolioと因果AI事業拡大に向けた採用支援パートナーシップを開始
株式会社ZenXのプレスリリース2025年10月27日 13時00分ZenX、NEC発のAI開発カーブアウト企業hootfolioと因果AI事業拡大に向けた採用支援パートナーシップを開始
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因果AIで「科学的な意思決定」の社会実装へhootfolioが「因果分析ネイチャーポジティブ」ウェビナーに登壇
ZDNET Japanは、CIOの課題を解決するオンラインメディアですCIOや企業の情報システム部門に向けて、ITを活用した課題解決や価値創造のヒントを提供します
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hootfolioがNECからカーブアウト、因果分析AIソリューション「causal analysis」を展開
日本電気株式会社以下、NECは27日、データから物事の原因と結果の関係を見える化し、意思決定を支援する因果分析AIソリューション「causal analysisコーザル アナリシス」を提供する株式会社hootfolioフートフォリオが、2025年1月1日に事業を開始したと発表したなおhootfolioは、企業の新事業創出を支援するBIRD INITIATIVE株式会社の協力のもと、NECの事業イノベーションプロセスを経て同社からカーブアウトしているとのこと
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hootfolio, Inc., a Provider of Causal Analysis Technology, Launches Business Development
TOKYO, Jan 27, 2025--- NEC Corporation today announced hootfolio, Inc., a provider of causal analysis AI solutions that support decision making by visualizing the cause-and-effect relationships of things from data, launched business on January 1, 2025. In
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Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Tokyo
Tokyo
Japan
HQ
2 open roles 2 posted in 90 days 50-200 est. staff $64k Avg Salary
hires for Customer Success, Industrial Engineering
How to cite this page
Alion, "hootfolio: key facts", as of Nov 13, 2026. https://alion.io/company/hootfolio
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0