Startup
AAillis
アイリス株式会社
#45 (tie) in the Japan Top 100 Startups
| Founded / HQ | 2017 · Tokyo |
|---|---|
| Cumulative raised | ¥12Bincl. debt/grants “累計資金調達額は約120億円” Company-stated cumulative · as of 2025 · Funds Startups column (company interview) About ¥2B+ of this is venture debt. |
| Last round | 23 Apr 2025 · Strategic (Tauns) · ¥2B 総額20億円 |
| Latest public valuation | Not publicly disclosed (we do not estimate) |
| Key investors | Tauns |
| Unicorn | No |
| Website | aillis.jp |
From Japanese sources
Findings from Japanese-language filings, government records, trade press, interviews and job posts, with our English analysis. Items tagged Japanese-only had no English coverage when we checked quickly. Most insightful first.
| 2026-10-13 | Regulatory filingJapanese-onlyAillis issued ¥6.9B of preferred shares at a flat ¥21,406 for three years; equity briefly negative アイリス（nodoca）は3年余り、同じ1株21,406円で優先株式を約69億円分発行した Registry filings show 11 issues of C and D preferred shares from Dec 2022 to Mar 2026, all at ¥21,406 a share (implied ≈¥22B valuation). Listed diagnostics firm Tauns took ¥2B. Shareholders' equity was slightly negative at FY10/2024 and FY10/2025, and the latest loss was ¥1.99B. A three-year flat round led by a strategic investor, while no revenue is disclosed, says a lot. Source: Compalyze (registry + statutory notices) |
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Overview
Aillis develops nodoca, an AI camera that photographs the throat to help doctors diagnose influenza. It was founded in 2017 by Sho Okiyama. Its Series D reached ¥5B including debt in 2024, and the company put cumulative funding at about ¥12B in 2025.
Built from: Series D release
Company timeline
Founded
| Date | 2017-11· Aillis |
|---|---|
| Founders | Sho Okiyama |
Funding
| Date | Round | Amount | Lead / key investors | Source |
|---|---|---|---|---|
| 2019-05-07 | Funding | ¥1.25B 12.5億円 | PR TIMES | |
| 2020-08-06 | Funding | cumulative ¥2.9B 29億円 | PR TIMES | |
| 2022-06-29 | Funding | cumulative ¥4B 40億円 | PR TIMES | |
| 2024-03-28 | Series D | ¥5B total incl. debt 50億円 | PR TIMES | |
| 2025-04-23 | Strategic | ¥2B 20億円 | Tauns | Company release |
Key hires & board
None compiled yet.
Milestones
| 2026-04-02 | RecognitionAillis selected for Tokyo SusHi Tech Global growth programme· PR TIMES |
|---|---|
| 2026-04-23 | RecognitionAillis selected for Toyota Woven City Challenge· PR TIMES |
| 2026-05-19 | ProductAillis launches Evidence Finder evidence-search AI for doctors· PR TIMES |
| 2026-07-24 | RecognitionCEO Okiyama wins silver in Kaggle NeuroGolf Championship 2026· PR TIMES |
| 2026-09-14 | TractionEvidence Finder adopts Sakana AI's Japanese LLM· PR TIMES |
| 2026-09-16 | RecognitionCEO Okiyama wins silver at AI cybersecurity contest co-hosted by OpenAI and Google· PR TIMES |
| 2026-09-25 | RecognitionAillis wins jury special award at Japan Startup Awards· PR TIMES |
| 2026-10-16 | RecognitionAillis AI engineer wins MICCAI AI competition for third straight year· PR TIMES |
News
| 2026-10-16 | Aillis AI engineer wins MICCAI AI competition for third straight year アイリス所属AIエンジニアが国際会議MICCAIのAIコンペで3年連続世界1位を達成· PR TIMES |
|---|---|
| 2026-09-25 | Aillis wins jury special award at Japan Startup Awards 医療AIのアイリス、日本スタートアップ大賞にて審査委員会特別賞を受賞· PR TIMES |
| 2026-09-16 | CEO Okiyama wins silver at AI cybersecurity contest co-hosted by OpenAI and Google 医療AIのアイリス、代表の沖山が OpenAI・Googleらが共催するAIサイバーセキュリティの大会で銀メダル受賞· PR TIMES |
| 2026-09-14 | Evidence Finder adopts Sakana AI's Japanese LLM 医療AIのアイリス、医師向け生成AIツール「Evidence Finder」にて、Sakana AI社の日本語特化LLMを導入· PR TIMES |
| 2026-07-24 | CEO Okiyama wins silver in Kaggle NeuroGolf Championship 2026 医療AI開発のアイリス、代表の沖山が国際的AIコンペティションKaggle「The 2026 NeuroGolf Championship」で銀メダルを獲得· PR TIMES |
| 2026-05-19 | Aillis launches Evidence Finder evidence-search AI for doctors 医療AIのアイリス、医師向けエビデンス検索AI「Evidence Finder」の提供を開始· PR TIMES |
| 2026-04-23 | Aillis selected for Toyota Woven City Challenge AI医療機器のアイリス、ウーブン・バイ・トヨタの「Toyota Woven City Challenge」で採択· PR TIMES |
| 2026-04-02 | Aillis selected for Tokyo SusHi Tech Global growth programme AI医療機器のアイリス、東京都の「“SusHi Tech Global”成長加速プログラム」第1期に採択· PR TIMES |
| 2026-03-26 | Aillis wins METI minister's prize at 10th Monozukuri Nippon Grand Award AI医療機器のアイリス、第10回ものづくり日本大賞で経済産業大臣賞を受賞· PR TIMES |
| 2026-01-30 | Aillis and Kyoto University Hospital start data project under Next-Generation Medical Infrastructure Act AI医療機器アイリスと京大病院、次世代医療基盤法によるデータ構築プロジェクトを開始· PR TIMES |
| 2025-11-13 | Aillis releases award-winning Japanese foundation model アイリス、世界大会で入賞した国産基盤モデルを公開· PR TIMES |
| 2025-11-07 | Aillis Wins Back-to-back 1st Place at the Renowned AI conference MICCAI 2025, AI Competition Aillis Wins Back-to-back 1st Place at the Renowned AI conference MICCAI 2025, AI Competition· PR TIMES |
| 2025-10-27 | Aillis launches nodoca 3 with COVID-19 detection AI AI医療機器のアイリス、新型コロナ判定AI機能搭載「nodoca 3」を提供開始· PR TIMES |
| 2025-10-21 | nodoca adds web pre-consultation link-up AI医療機器「nodoca」にウェブ問診連携機能を新搭載· PR TIMES |
| 2025-10-09 | First in Japan: throat-photo AI device for COVID-19 wins approval 日本初、のどの写真を用いてコロナを判定するAI医療機器が薬事承認を取得· PR TIMES |
| 2025-09-24 | Aillis selected for AMED digital healthcare programme AI医療機器のアイリス、AMED「デジタルヘルスケア開発・導入加速化事業」に採択· PR TIMES |
| 2025-09-09 | nodoca exhibited at Osaka Healthcare Pavilion, Expo 2025 AI医療機器のアイリス、大阪・関西万博 大阪ヘルスケアパビリオンにて展示開始· PR TIMES |
| 2025-08-01 | Aillis selected for NEDO Unicorn Promotion Program AI医療機器アイリス、NEDOの過去最大規模事業開発支援事業「ユニコーン・プロモーション・プログラム（UPP）」に採択· PR TIMES |
| 2025-04-23 | Strategic: ¥2B· Company release |
| 2024-03-28 | Series D: ¥5B total incl. debt· PR TIMES |
Founder profiles: Sho Okiyama
Funding rounds in 2026
No 2026 rounds in our database yet. Earlier funding is summarised above from the cited source.