Kyoto SEO consultancy run hands-on by its CEO, covering strategy, technical and content work
About S-fleage
S-fleage Inc. (株式会社S-fleage) is an SEO consultancy based in the Daiichi Hase Building on Karasuma-dori in Shimogyo-ku, Kyoto, a short walk from Karasuma and Shijo stations. It was founded in February 2016 with capital of one million yen. Alongside SEO and digital marketing support, the company runs Gleam, an online shop selling Edo kiriko glass barware to customers in the United States.
The founder and representative director is Yuichi Nagai. He holds an MBA from Kyoto University, is studying marketing in a doctoral programme at Doshisha University, and supported digital marketing strategy at CyberAgent before starting the firm. Nagai handles every project personally, unlike agencies where the account team changes after a contract is signed.
Their work covers four areas: SEO strategy based on analysis of the business, competitors and search behaviour; technical SEO, including site structure, page speed and internal links; content SEO, from keyword design to new articles and rewrites; and SEO-led site rebuilds. They work in an ongoing loop of analysis, planning, execution and checking. Before any contract, prospects can use a free site diagnosis tool or request a free competitor analysis, keyword market study or review of top-ranking content, each delivered as a PDF report with a 30-minute online meeting.
S-fleage has supported more than 100 companies, with a 73 percent rate of reaching top rankings and an average threefold rise in conversions. Its published cases are anonymous and mostly corporate. One describes consolidating more than a dozen country sites of a global consumer electronics maker into a single domain, with redirect mapping, hreflang guidance and monitoring; there was no loss of rankings or organic traffic over about six months after migration. Other examples cover a listed B2B manufacturer and a European game company entering Japan.
Dental and medical clinics do not appear in their case material. Their support is friendly to people new to SEO, and they serve clients nationwide. A dental clinic with someone on staff who manages the website could use their consulting to plan content and fix technical issues, but it would be one of few healthcare clients.
They do not publish their own fees. SEO consulting in Japan typically costs from about 100,000 yen to over one million yen per month, and they advise asking providers why they require minimum terms of six months or more. Work is conducted in Japanese.
S-fleage's Website
S-fleage at a Glance
| Founded | 2016 |
|---|---|
| Headquarters | Shimogyo-ku, Kyoto, Japan |
| Leadership | Yuichi Nagai (Representative Director and CEO) |
| Languages | Japanese |
| Pricing | No published fees; quotes on request. The general market range for SEO consulting is about 100,000 yen to over 1,000,000 yen per month. Diagnosis tool and several initial analyses are free. |
| Contracts & reporting | CEO handles each project directly. Free analyses come with a PDF report and a 30-minute online meeting. Minimum contract length not published. |
| Tools & partnerships | Proprietary free SEO diagnosis tool |
Dental Marketing Services
- SEO strategy and keyword design
- technical SEO (site structure, page speed, internal linking)
- content SEO including new articles and rewrites
- SEO-led site renewal
- competitor analysis
- free site diagnosis
Dental Clients & Results
- Global consumer electronics manufacturer (unnamed): consolidated a dozen-plus country domains into one with no loss of rankings or organic traffic (about 6 months of post-migration monitoring)
- Unnamed client: inquiries up 300% year on year
Why Dentists Choose S-fleage
- Built for in-house web managers
- Strategy and execution from one team
- Beginner-friendly support
- Works with B2B and B2C firms
- Central Kyoto office
Key Strengths
- Spends the first one to three months diagnosing a practice site's keywords and competitors
- Uses AI-assisted coding to apply routine technical SEO fixes to practice sites
- Offers free tools for diagnosing a practice site's SEO, competitors and keywords
How the DSA Score Breaks Down
Points earned: 18.4 of 100 (profile 23 × 0.8 + client feedback 0). DSA Score: 84/100
Where S-fleage Is Listed
Questions Dentists Ask About S-fleage
Who will actually work on our account?
Its CEO, Yuichi Nagai, personally handles every project. He previously worked on digital marketing strategy at CyberAgent and holds an MBA from Kyoto University.
Have they worked with dental clinics?
No dental or medical clients appear in their published material. Their anonymised cases come from manufacturing, consumer electronics and gaming.
Can we try them before signing?
Yes. They offer a free SEO diagnosis tool plus free competitor, keyword and top-content analyses, each with a PDF report and a 30-minute online meeting.
How much does their SEO consulting cost?
They quote per project and do not list prices. SEO consulting in Japan generally ranges from about 100,000 yen to more than 1,000,000 yen per month.
What results have they delivered?
They have supported more than 100 companies, with a 73 percent top-ranking achievement rate and an average threefold rise in conversions. Named clients are not disclosed.
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