About Welby
Welby is a publicly listed company based in Tokyo (Japan) founded in 2011. App-based self-care management for diabetes and hypertension is offered. The company has 54 employees. Its website welby.jp draws about 32 thousand monthly visits. Its focus areas include HealthTech, Healthcare IT, Value Based Care and Remote Monitoring.
Company details
Founded in 2011 and based in Tokyo, Japan, Welby operates in the health technology sector. An app is provided for patient engagement, allowing logs of blood sugar, insulin, diet, and blood pressure to be recorded and managed centrally. Data analysis and visualization through graphs or lists are enabled to support care planning during consultations. A patient information portal and healthcare provider directory are also included for appointment booking with specialists.
- Annual Revenue$4.06 M (USD)20.39as on Dec 31, 2025
- Net Profit-$3.44 M (USD)32.93as on Dec 31, 2025
- EBITDA-$2.7 M (USD)32.97as on Dec 31, 2025
- Investors
- Employee Count54
Funding Insights of Welby
- Total Rounds 1
- Investors Count 1
All 1 funding rounds of Welby with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Apr 2014 | Series A | – | – |
1 investors in total: 1 institutional.
Investors in Welby
Welby has secured backing from 1 investor, including venture fund investors. Prominent investors backing the company include DG Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
DG Ventures is engaged in investing in startup companies. | dgventures.com | San Francisco, United States |
Investor details for Welby
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IPO & Listings of Welby
Welby is a publicly listed company on the TSE with ticker symbol 4438 in Japan, operating in the Technology services sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date29 Mar 2019
- Listed onTSE: 4438
- Listed entityWelby Inc.
- Exchange sectorTechnology services
- ISINJP3155410008
- Share price297.00 JPY · 2026-10-14
- Market capitalisation2,535,058,951.00 JPY
- EPS (diluted, trailing year)-62.54 JPY
- Volume (last session)38,100
Financials of Welby
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | 635.7M JPY | -539.7M JPY | -423.6M JPY |
| 2024 | 528.0M JPY | -804.6M JPY | -631.9M JPY |
| 2023 | 575.5M JPY | -505.3M JPY | -434.4M JPY |
| 2022 | 1.05B JPY | 33.9M JPY | 63.0M JPY |
| 2021 | 1.14B JPY | -130.7M JPY | -112.5M JPY |
Detailed financial statements for Welby
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Timeline of Welby
3 dated milestones of Welby across 8 years, from founding to its latest funding, stage changes and deals.
- Founded Welby is founded.
- Funding First funding round.
- IPO Lists on the stock exchange (IPO).
Web traffic of Welby
The website of Welby (welby.jp) receives about 32.3K visits a month.
- Monthly visits32.3K
▼ 23% vs previous month
Websites whose visitors overlap most with Welby. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
dm-net.co.jp | dm-net.co.jp | 100% | #172,150 | – | |
dm-town.com | dm-town.com | 83% | #1,663,609 | – | |
seikatsusyukanbyo.com | seikatsusyukanbyo.com | 78% | #596,008 | – | |
 tounyou.wordpress.com | tounyou.wordpress.com | 76% | – | ||
uemura-clinic.com | uemura-clinic.com | 76% | #3,985,128 | – | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 35 similar websites and full traffic analytics for Welby
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Related news about Welby
Complete news archive for Welby
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Frequently Asked Questions about Welby
Welby was founded in 2011 and raised its 1st funding round 3 years after it was founded.
Welby is headquartered in Tokyo, Japan. It is registered at Tokyo, Tokyo, Japan.
Welby has 54 employees.
Annual revenue of Welby is $4.06M as on Dec 31, 2025.
Founded in 2011 and based in Tokyo, Japan, Welby operates in the health technology sector. An app is provided for patient engagement, allowing logs of blood sugar, insulin, diet, and blood pressure to be recorded and managed centrally. Data analysis and visualization through graphs or lists are enabled to support care planning during consultations. A patient information portal and healthcare provider directory are also included for appointment booking with specialists.
Yes, Welby is publicly traded on TSE under the ticker symbol 4438.
Welby has 1 investor. Key investors include DG Ventures.