TL;DR Japan has about 123 million people, and roughly three in ten are 65 or older. That makes it the clearest test bed anywhere for care, automation and services that run on fewer staff. Tourism is also at record levels. The ideas that fit here save labour, support older people at home or serve the visitor boom.

The market in numbers

  • Population: about 123.4 million in 2025[1].
  • Ageing: about 30% of people were 65 or older in 2025[2].
  • GDP per capita: about US$35,950 in 2025[3].
  • Internet use: about 86% of people were online in 2024[4].
  • Visitors: about 42.68 million visitor arrivals in 2025, up 15.8% on 2024, in preliminary figures from the national tourism organisation[5].
  • Manufacturing: about 19% of GDP in 2024[6].
  • Currency: the Japanese yen (JPY).

What founders here actually have to work with

Japan's constraint is people, not money. With nearly a third of the population over 65[2], care homes, hotels, shops and plants all compete for the same shrinking pool of workers. If your product lets one person do what used to take two then you have a buyer.

Japanese buyers are careful though. They test for a long time, expect polish and want a local team that answers the phone. A startup that tries to sell remotely in English will mostly get polite silence.

The visitor numbers are the other big shift. At over 42 million arrivals last year[5], led by South Korea, China and Taiwan, tourism now strains small hotels and rural towns that weren't built for it. I'd also note how much hardware Japan already owns - robots, machines and appliances that need upkeep, which is a quieter business than building new ones.

Ideas that fit Japan

All of these were researched for India. The rupee costs and Indian licences don't carry over, so treat each one as a brief to rebuild for Japanese buyers and rules, with a Japanese-speaking team.

Ageing at home and in care

  • Memorydome: Personal VR reminiscence sessions for dementia day care fit a large network of care operators. Build the content around Japanese places and eras.
  • Homesentinel: Sensors and a response desk for seniors who live alone suit a country with many single older households [Requires validation]. Partner with a local care provider for call-outs.
  • Surestride: Live strength and balance classes that reduce falls are cheap to deliver. Municipal health programmes may be a buyer [Requires validation].
  • Combkind: Home haircuts and nail care for bedbound seniors is a service business you can start in one ward of one city.
  • Softmeal: Swallow-safe meals that look like real food fit care homes. Japan already has texture-modified food standards, so learn them first [Requires validation].
  • Kinsweep: A quarterly privacy check-up for families and older parents fits a market where scams aimed at the elderly get public attention [Requires validation].
  • Palmtrain: Hand-rehab robots placed in physio clinics and paid per session suit stroke rehab. Medical device approval will set the timeline [Requires validation].

Doing more with fewer staff

  • Trayline: Night room delivery robots for business hotels fit chains that can't staff overnight shifts. Pitch it on cost per night, not novelty.
  • Lustrelane: Robot floor cleaning sold per shift helps facility contractors who can't hire enough cleaners.
  • Rovinghall: Remote-operated front-desk robots that give disabled people paid work fit both the labour gap and employer hiring targets [Requires validation].
  • Axisward: Joint-wear alerts for mixed-brand robot arms suit the many suppliers running older robots. Sell maintenance savings, not new tech.
  • Spindlehand: Cobots leased by the month to tend machines fit small family-run machine shops whose owners can't find young machinists.
  • Vacantly: Sensors that send cleaners and cooling only where people are help building managers stretch thin crews.

Visitors and everyday upkeep

  • Ratecove: Pricing help for small inns and guesthouses fits rural operators now seeing foreign guests for the first time. Check local lodging licence rules [Requires validation].
  • Zonecraft: Network rules for hotel locks, TVs and cameras suit mid-size hotel groups growing fast on visitor demand.
  • Repairpickup: Fixed-price pickup repair for home appliances fits older households who would rather fix than replace. The repair network is the hard part.
  • Stormcrate: Battery trailers on standby for clinics and shelters fit a country that plans hard for earthquakes and typhoons. Local governments are the likely buyer [Requires validation].

Rules to check before you start

Company registration goes through the Ministry of Justice's registry offices, and JETRO publishes a step-by-step guide for foreign founders[7]. Some industries need prior notice to the Ministry of Finance through the Bank of Japan before a foreign investor buys shares[7]. Taxes are handled by the National Tax Agency[8]. The Bank of Japan is the central bank[9], and the Financial Services Agency regulates financial firms[10]. Medical devices, care services and lodging each have their own approvals [Requires validation].

This is a starting list, not legal advice. Check with a local lawyer or the agency itself.

Questions founders ask

Care and upkeep services cost the least to start. Combkind, Repairpickup and Kinsweep above need trained people and local trust more than capital.

Do foreigners need a local partner to start a company in Japan?

I couldn't confirm a local partner rule. JETRO's guide lists prior notification for some industries through the Bank of Japan[7], so check with JETRO or the Ministry of Justice registry before you commit.

Is Japan too hard for a foreign startup?

It's slow, not closed. Expect long pilots and plan for a Japanese-speaking lead from day one, then the loyalty you get once you're in tends to last.

Talk to Yash

In Japan the question is less "is there demand" and more "who will trust you first", and I'm happy to work through that with you. If you need a hand, you know where to find me.

Talk to Yash →

Sources

  1. World Bank, "Population, total: Japan", 2025. https://api.worldbank.org/v2/country/JPN/indicator/SP.POP.TOTL?format=json&mrv=1
  2. World Bank, "Population ages 65 and above (% of total population): Japan", 2025. https://api.worldbank.org/v2/country/JPN/indicator/SP.POP.65UP.TO.ZS?format=json&mrv=1
  3. World Bank, "GDP per capita (current US$): Japan", 2025. https://api.worldbank.org/v2/country/JPN/indicator/NY.GDP.PCAP.CD?format=json&mrv=1
  4. World Bank (ITU data), "Individuals using the Internet (% of population): Japan", 2024. https://api.worldbank.org/v2/country/JPN/indicator/IT.NET.USER.ZS?format=json&mrv=1
  5. Japan National Tourism Organization, "Number of visitor arrivals to Japan in December 2025", 2026. https://asset.japan.travel/image/upload/v1769050010/pdf/Number_of_visitor_arrivals_to_Japan_in_December_2025.pdf
  6. World Bank, "Manufacturing, value added (% of GDP): Japan", 2024. https://api.worldbank.org/v2/country/JPN/indicator/NV.IND.MANF.ZS?format=json&mrv=1
  7. JETRO, "Section 1. Incorporating Your Business", 2026. https://www.jetro.go.jp/en/invest/setting_up/section1/
  8. National Tax Agency, English site, 2026. https://www.nta.go.jp/english/
  9. Bank of Japan, home page, 2026. https://www.boj.or.jp/en/
  10. Financial Services Agency, English site, 2026. https://www.fsa.go.jp/en/

For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.