These ranges are a starting point, not a final quote. Your price depends on scope and goals — we give you a firm estimate after a free consultation.

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Josys
光陽社
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e-housing

Build & migrate

One-time projects

A fixed-scope build or migration, quoted per project. You own the result and your team can run it.

Basic

¥300,000 – 700,000 per project

A focused build — a landing page, campaign site or small corporate site, live fast.

  • Custom design & build
  • Responsive & SEO-ready
  • CMS your team can edit
  • Bilingual EN / JA optional
Book a free consultation

Enterprise

By request

Large or multi-site builds, complex integrations and ongoing programs — scoped to you.

  • Multi-site / multi-language scope
  • CRM, automation & systems integration
  • NDA, security & APPI compliance
  • Dedicated team & roadmap
Talk to sales

Ongoing & growth

Monthly retainers

Continuous programs billed monthly — keep your site healthy and grow your traffic and conversions.

Support

From ¥50,000 / month

Your on-call technical advisor — answers, consultations and best practices from a dedicated specialist.

  • Answers to technical questions (chat)
  • Video-call consultations
  • Best-practice guidance & how-tos
  • A dedicated specialist
Delivered via Webflow Support
Book a free consultation

Growth

From ¥300,000 / month

We actively grow your business — SEO and conversion, with strategy and reporting.

  • Everything in Maintenance
  • SEO — technical, content & off-page
  • Conversion (CVR) improvement
  • Analytics, reporting & growth strategy
Delivered via SEOB2B Lead Generation
Book a free consultation

AI search visibility

AI Visibility (AIO / LLMO)

A dedicated program to get your brand recommended — often, prominently and positively — by ChatGPT, Claude, Gemini and Google AI Overviews. Start with a diagnostic; every recommendation arrives implementation-ready — and we can implement it for you as an option.

AI Visibility Diagnostic

¥300,000 one-time

A diagnostic report of where you stand in AI search — which AI recommends which competitors, why, and a prioritized roadmap to fix it.

  • Visibility audit across ChatGPT, Claude, Gemini & Google AI Overviews
  • Competitor share-of-voice comparison
  • Citation & source analysis
  • Prioritized improvement roadmap
Delivered via AI Optimization (AIO)
Book a free consultation

Full details on the AI Search Optimization (AIO) solution page .

Testimonials

What our clients say

We appreciate regular support via chat and online call, and the excellent communication and responsiveness. Thank you very much.

So Ohara Ricoh Company, Ltd. So Ohara

We appreciate their continious support and careful attention to small details. In the future, we will continue to enhance our website as our company expands, and we look forward to working with you even further.

Issei Kusano Toppan Global Ventures Partners, Inc Issei Kusano

I feel grateful that they do not only flexibly help to build the website and do fixes, but also understand about our business model and marketing. I would say that Supasaito is not a typical "development agency", but a technology partner working together to grow our business. Thank you!

Yuta Yamauchi Fundio Co, Ltd. Yuta Yamauchi

How we work

From first call to handoff

A clear, five-step process — the same whether you start with a project or a retainer.

  1. Free consultation

    ~30 min

    We learn your goals, audience and constraints, and tell you honestly whether we are a fit.

  2. Proposal & estimate

    2–3 business days

    We define the scope, plan and a firm quote — no surprises once we start.

  3. Design & build

    2–8 weeks

    We design and build your site (or run the first cycle of your retainer), with you in the loop.

  4. Team training

    At handoff

    We train your team to run the site themselves — the "Train" in Build → Train → Own.

  5. Launch & ongoing support

    Ongoing

    We go live and, if you want, continue with a monthly retainer to maintain and grow.

FAQ

Pricing questions, answered

Still unsure? Book a free 30-minute consultation and we will scope it with you.

What decides where my project lands in the range?

Scope — number of pages and templates, custom design and animation, CMS complexity, integrations, and whether content and translation are included. After a short consultation we give you a firm, itemized quote.

Do I need a one-time project or a monthly retainer?

A project builds or migrates your site (a fixed deliverable). A retainer keeps it running and growing month to month — maintenance, SEO, content or AI visibility. Many clients start with a project, then move to a retainer after launch. You can do either, or both.

How long does a project take?

A Basic build is typically a few weeks; a full Pro site or migration is usually one to two months. We confirm the timeline in the proposal before any work starts.

How do I pay?

Stripe (card) or bank transfer, against an invoice. Projects are usually split across milestones; retainers are billed monthly.

Are SEO and AI optimization one-time or ongoing?

Ongoing. Both compound over months — SEO lives in the Growth retainer, and AI visibility (AIO) is a dedicated ongoing program of its own, not a one-time project.

Do you work in both English and Japanese?

Yes. We are a bilingual team and deliver projects, support and content in EN and JA — including localization for entering Japan or expanding abroad.

How much does AIO (AI search optimization) cost?

The AI Visibility Diagnostic is ¥300,000 (one-time) and the AIO Program starts at ¥500,000 / month. Your final quote depends on your industry and how many competitors you have — the best first step is the diagnostic.

What's the difference between the AIO Program and the Growth retainer?

Growth is SEO, conversion (CVR) and operations for your website. AIO is a dedicated program that measures and improves how AI recommends your brand — with its own KPI (share of AI recommendations) and a monthly report. They are compatible and can be combined.

How is AIO different from LLMO, GEO and AEO?

They are sub-disciplines and terms within the same field; our umbrella term is AIO. See our AI Search Optimization (AIO) terminology guide for the full breakdown.