Group & Businesses
Three companies
and the holding company’s own service
Claria Holdings is a holding company incorporated in August 2026. Its three group companies work in different fields: rimp co., ltd., a systems developer; kaeruwork co., ltd., which provides bookkeeping and marketing support and runs lash lift, dry head spa and men's total beauty salons; and Poright Inc., a specialist in automotive body and paint work.
ClariaSync is operated directly by Claria Holdings. The tool brings together inventory, orders and sales across multiple online marketplaces. It grew out of running e-commerce inside the group.
rimp co., ltd.
A company active in retail and in app, web and business system development. It handles planning, design, implementation and maintenance in house.
We don't hand a system over and walk away. The systems used by the group's salons, body shop and e-commerce business were all built by us, and we run them ourselves every day. Because we know the problems that only show up once something is running, we design our clients' systems the same way, to keep running.
What we built and use every day
- KAERU BOARD Booking, shifts, attendance, payroll and sales for six salons in one screen. We built the sync with outside booking systems, the tablet app used in store, and the staff smartphone app ourselves.
- Poright Garage Tracks a vehicle through the body shop, from intake and quoting to repair work and delivery.
- Otegaru Buppan An e-commerce business buying and reselling home appliances. We built and run the website, the iOS and Android apps, and LINE chat support.
- Claria Attendance Time tracking and attendance management. Provided by Claria Holdings Corporation.
Technology stack
| Front end | React / TanStack Start / Next.js / Vite / TypeScript / Tailwind CSS / HTML, CSS and JavaScript |
|---|---|
| Back end | Node.js / Express / Hono / PHP (Laravel) |
| Database | PostgreSQL / MySQL / SQLite / Cloudflare D1 |
| Infrastructure | Cloudflare (Pages / Workers / D1) / Linux VPS / nginx / PM2 / systemd / Docker |
| Mobile | iOS and Android apps built with Capacitor |
| Automation | Business automation with Playwright, Python and cron, and API integrations with outside services |
How we work
We start with a conversation, then split the work into small pieces we can build and check quickly. We keep improving and adding to a site after it launches, too.
kaeruwork co., ltd.
From the back-office side of a business, bookkeeping and marketing support, to running lash lift, dry head spa and men's total beauty salons.
- Bookkeeping Daily, monthly and annual bookkeeping handled on a client's behalf.
- Marketing support New customer development through social media and advertising.
- KATEstageLASH Lash lift salon. Operated in Ichinomiya and Yokkaichi.
- Dry head spa Operated in Ichinomiya and Yokkaichi.
- Men's total beauty Operated in Ichinomiya and Yokkaichi.
The group's beauty salons
The group runs three salon brands at six locations, in Ichinomiya, Aichi and Yokkaichi, Mie. Acquisition of a dry head spa business in Hamamatsu, Shizuoka is planned.
Locations and bookings
| KATEstageLASH, Ichinomiya | Ichinomiya, Aichi Book online |
|---|---|
| KATEstageLASH, Yokkaichi | Yokkaichi, Mie Book online |
| Dry head spa, Ichinomiya | Ichinomiya, Aichi Book online |
| Dry head spa, Yokkaichi | Yokkaichi, Mie Book online |
| Men's total beauty, Ichinomiya | Ichinomiya, Aichi Book online |
| Men's total beauty, Yokkaichi | Yokkaichi, Mie Book online |
Poright Inc.
From kei cars to heavy trucks, body repair, colour matching, paint, polishing and reassembly are all done at our own shop.
ClariaSync (a holding company business)
Multiple marketplaces, one screen
It supports Amazon, Rakuten Ichiba, Qoo10, Mercari Shops*, Yahoo! Shopping* and au PAY Market*, handling inventory, orders, shipping and sales for each in one screen. The group develops it, and it is the holding company's own business. * In development
What it does
- Inventory Matches items by JAN code and sets aside records that need a check.
- Orders and shipping Orders from each marketplace in one table, through the unshipped list, picking and Amazon shipment confirmation.
- Expenses, analysis and invoices Expense records, sales and purchase analysis, and invoicing.
Availability
| Status | Access will be by invitation. Early registration is now open. The service is scheduled to start in late October 2026. |
|---|---|
| Pricing | A monthly subscription, with no free plan. Current pricing and terms are on the service site. |
| Provider | Claria Holdings Corporation 2-4-37 Takaki, Ichinomiya-shi, Aichi 491-0837, Japan |