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Studio Expertise
Now booking Q4 projects

Websites built for businesses that mean business.

Studio Expertise designs, builds, and optimizes client websites end to end (strategy, design, code, and SEO) for teams operating across English- and Korean-speaking markets.

Trusted by teams across Korea

Seoul HomesMr. Visa KoreaJames RealtyApostille FirstSeoul ApostilleJames ApostilleLnA Certified TranslationHOLA Certified TranslationHanTaxProSeoul TranslateLookseeMassageGoOnline Medical ToolsAirlinkeeEugine Administrative Agent OfficeJOYCE Legal AdvisoryTeoraspaceIsland SeekerJoy Son RealtyVietnam Legal Support행정사사무소 온 - 외국인 기업인허가, 비자, 번역동하상회
What we do

Everything your site needs, nothing it doesn't.

Every engagement runs through the same discipline: design that's earned, code that's built to last.

01

Web Design

We start by mapping how your customers actually decide, not by picking a template. Wireframes move to high-fidelity design in tight iterations, refined until every page feels unmistakably yours and ready to scale as you add more.

  • Interfaces built around how customers actually decide
  • Wireframe to high-fidelity, refined until it's unmistakably yours
  • Systemized for every page you'll add later
02

Development

Every site ships as production-grade code on modern stacks, deployed to infrastructure we monitor after launch, not a page builder wrapped in a subscription. Performance and Core Web Vitals are launch requirements, not follow-up work.

  • Production code on modern stacks
  • Deployed and monitored properly
  • Built to scale past launch day
03

Bilingual Localization

Korean and English copy is written natively for each market, not machine-translated, including layout, tone, and calls to action that read naturally in both languages. One team handles both, so nothing gets lost in a handoff.

  • Native English and Korean copywriting
  • UX adapted per market, not translated
  • One team, fluent in both
04

SEO & Growth

Technical SEO (structured data, clean URLs, fast Core Web Vitals) is part of the build from the first commit, not a bolt-on audit after launch. We stay on after launch to measure what's working and keep improving it.

  • Technical SEO from the first commit
  • Structured data and fast Core Web Vitals
  • Built to be found, not just to look good
How it runs

Four stages, one team

No handoffs, no context lost in translation.

01

Discovery

We learn your business, your customers, and what "done" actually looks like.

02

Design

Wireframes to high-fidelity, refined until it's unmistakably yours.

03

Build

Production-grade code, tested and deployed on infrastructure that scales.

04

Launch & Grow

We stay on to measure, iterate, and keep it fast.

Selected work

Projects in the pipeline

22 live client websites shipped across real estate, legal & immigration, translation, tax, health, retail, and marketing. Every one is built end-to-end by our team and running in production today. Running a real estate brand? Ask about a white-label site built on our Seoul Homes platform.

seoulhomes.kr
Seoul Homes homepage: apartment listings and search over a Seoul skyline
Seoul HomesReal Estate Platform01

Problem: The old site ran on WordPress, which made it difficult to customize, scale, or fix underlying technical SEO issues.

What we built: A fully custom rebuild from the ground up, with SaaS-grade performance on a dedicated server and database.

Result: Search clicks up 110% and impressions up 175% over the past several months, per Google Search Console.

mrvisakorea.com
Mr. Visa Korea homepage: AI-assisted Korean visa guidance and requirements
Mr. Visa KoreaVisa & Immigration Platform02

Problem: Visa info in Korea was scattered across government sites and forums, hard for foreigners to figure out which visa type applied to them or what documents they needed.

What we built: An AI-assisted visa guidance platform. Visitors either browse by visa type directly or take a short quiz if they're not sure, get instant AI-powered answers through K-VISA AI, and can connect with a human visa specialist when they need one.

Result: Growth in SEO, helped many clients find scattered Korean visa information, and increased usage of K-VISA AI.

jamesrealty.co.kr
James Realty listings page: white-label version of the Seoul Homes platform
James RealtyWhite-label Real Estate Platform03

Problem: Client wanted a real estate platform of their own without building one from scratch, and needed it launched fast.

What we built: A white-label version of the Seoul Homes real estate platform, rebranded for James Realty, giving them the same underlying search and listings engine without paying for custom development from zero.

Result: A dedicated domain, growth in SEO, and independence from relying on another SaaS platform.

apostillefirst.com
Apostille First homepage: document legalization and apostille services in Korea
Apostille FirstLegal Services Marketplace04
Read case study

Problem: Apostille and document legalization in Korea was confusing and scattered, with no single trusted place for foreigners to find verified specialists or understand the process.

What we built: A marketplace connecting people to apostille and legalization specialists, with browsing by document type or purpose, step-by-step guides, and a search-for-an-expert flow.

Result: Helped organize scattered apostille and legal work into one place, with a similar outcome to Mr. Visa Korea.

seoulapostille.com
Seoul Apostille homepage: browse licensed agents for apostille, visa, and translation services
Seoul ApostilleLicensed Agent Marketplace05
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Problem: Similar space to Apostille First. People needed a reliable way to find licensed agents for apostille, visa, and translation work in Korea, without guessing who's actually qualified.

What we built: A licensed-agent marketplace where users browse and compare verified agents by nationality or specialty, then request their service directly. An agent-directory model, versus Apostille First's document-type-first approach.

Result: Growth in inquiries to agents, more clients, and more revenue overall.

jamesapostille.com
James Apostille homepage: apostille, visa, and translation services for foreign nationals in Korea
James ApostilleApostille & Visa Consultancy06
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Problem: Client wanted to offer apostille and visa consulting together under one personal brand, rather than clients having to go to separate services for each.

What we built: A personal consultancy site combining apostille and visa services under one brand, positioning James Apostille as a single point of contact for both instead of a marketplace of multiple agents.

Result: A dedicated website with its own content and its own customers, independent of any marketplace platform.

lna-atty.co.kr
LnA Certified Translation homepage: certified translation for international litigation and overseas service of process
LnA Certified TranslationLegal Translation & Litigation Support07
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Problem: Client had their own website already, but it wasn't SEO optimized. It was a dead site with no traffic unless they spent money on ads.

What we built: The site was rebuilt and fully SEO optimized.

Result: Search clicks up 138% over the past three months, per Google Search Console.

holaattorney.com
HOLA Certified Translation homepage: certified Korean-Spanish translation and Spain immigration support
HOLA Certified TranslationSpanish Translation & Immigration08
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Problem: The client's site was built on Notion, a fine tool for internal docs, but not built for search visibility. It had essentially no path to being found on Google.

What we built: A proper website replacing the Notion page, built with SEO as a first-class requirement rather than an afterthought.

Result: A dedicated website with SEO-driven traffic and inquiries.

hantaxpro.com
HanTaxPro homepage: matching clients with licensed Korean and US tax professionals
HanTaxProKorean & US Tax Marketplace09
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Problem: Same pattern as other clients: no good dedicated site or SEO, making it hard for people to find a trustworthy Korean or US tax professional.

What we built: A platform matching clients with Korean and US tax professionals.

Result: More inquiries.

seoultranslate.com
Seoul Translate homepage: certified document translation for immigration, legal, and business use
Seoul TranslateDocument Translation Marketplace10
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Problem: People needing certified document translation for immigration, legal, or business use had no easy way to find and compare vetted translators in one place.

What we built: A document translation marketplace where clients browse and connect with certified translators by document type and purpose.

Result: Search impressions grew from 230 to over 2,000 in three months, per Google Search Console.

lookseehealth.com
Looksee homepage: food product scoring on nutrition, processing level, and additive risk
LookseeFood Label Scoring App11
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Problem: Consumers can't easily tell if a packaged food product is actually healthy just by reading the label. Marketing language on the front of the package often hides what's really inside.

What we built: An app that scores food products on nutrition, processing level, and additive risk, so users can search or scan a product and see what's really inside before buying.

Result: Growing organic traffic and product searches.

massagego.co
MassageGo homepage: in-room massage booking service in Ho Chi Minh City
MassageGoIn-Room Massage Booking12
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Problem: Visitors and residents in Ho Chi Minh City wanting a massage had to travel to a spa or deal with unreliable, unlicensed providers found through word of mouth.

What we built: An in-room massage booking platform with licensed therapists, no travel required, no deposit needed, and a direct WhatsApp booking option.

Result: Search clicks up 122% and impressions up 41% over the past three months, per Google Search Console.

onlinemedicaltools.com
Online Medical Tools homepage: free evidence-based medical calculators for patients and clinicians
Online Medical ToolsMedical Calculator Directory13
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Problem: Patients and clinicians needing quick medical calculations had to hunt across scattered, ad-heavy sites that don't compute privately or clearly explain the methodology.

What we built: A directory of evidence-based medical calculators across categories like body metrics, cardiology, and neurology, computed privately in the browser and free for patients and clinicians alike.

Result: Growing usage from both patients and clinicians.

airlinkee.com
Airlinkee homepage: one link page for services, credentials, and booking, with AI-assisted client Q&A
AirlinkeeLink-in-Bio for Professionals14
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Problem: Professionals were juggling five different links across platforms, like Instagram, a booking site, and a portfolio, making it hard for potential clients to find what they needed or get questions answered quickly.

What we built: A single link-in-bio page combining services, credentials, and booking in one place, with an AI assistant that answers client questions automatically before they even call.

Result: More inquiries converting, since prospects get answers immediately instead of waiting for a reply.

euginetrust.com
Eugine Administrative Agent Office homepage: regulatory and certification consulting for foreign businesses in Korea
Eugine Administrative Agent OfficeRegulatory & Certification Consulting15
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Problem: Foreign businesses operating in Korea faced complex regulatory and certification requirements, with no clear guide or trusted consultant they could easily find and reach out to.

What we built: A consulting site laying out Eugine's regulatory and certification services for foreign businesses, with a clear breakdown of what's covered and a direct path to get in touch.

Result: More inquiries from foreign businesses needing regulatory help.

joyceoffice.com
JOYCE Legal Advisory homepage: foreign property registration services in Korea
JOYCE Legal AdvisoryForeign Property Registration16
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Problem: Foreigners trying to register property in Korea faced a legal process they didn't understand, made harder by language and procedural barriers.

What we built: A site explaining JOYCE's foreign property registration services clearly, positioning them as the specialist to go to for this specific, narrow legal need.

Result: More inquiries from foreign property owners.

teoraspace.com
Teoraspace homepage: SEO strategy and AI search visibility optimization agency
TeoraspaceSEO & AI Search Visibility Agency17
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Problem: As an SEO and AI-search visibility agency, Teoraspace needed their own site to actually prove the quality bar they sell to clients, not just claim it.

What we built: A site built to the same technical SEO and AI-search-readiness standard Teoraspace sells to their own clients, so the site itself is the proof.

Result: Stronger credibility with prospects, since their own site performs the way they promise clients' sites will.

islandseeker.co
Island Seeker homepage: travel and business guide for restaurants, hotels, and adventures across Asia-Pacific islands
Island SeekerTravel & Business Directory18
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Problem: Travelers to island destinations across Asia-Pacific had no single reliable directory for restaurants, hotels, and activities. They were stuck piecing it together from scattered reviews and outdated guides.

What we built: A travel and business directory covering restaurants, hotels, and adventures across Asia-Pacific islands, in one searchable place.

Result: Search clicks up 204% and impressions up 116% over the past three months, per Google Search Console.

joysonrealty.com
Joy Son Realty homepage: white-label version of the Seoul Homes platform
Joy Son RealtyWhite-label Real Estate Platform19
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Problem: Client wanted a dedicated real estate platform under her own name without the cost or time of a custom build from scratch.

What we built: A white-label version of the Seoul Homes real estate platform, rebranded for Joy Son, giving her the same underlying search and listings engine on her own domain.

Result: A dedicated domain, growth in SEO, and independence from relying on another SaaS platform.

vietnamlegalsupport.com
Vietnam Legal Support homepage: visa and residency assistance for foreigners in Vietnam
Vietnam Legal SupportVisa & Residency Assistance20
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Problem: Foreigners facing visa problems in Vietnam had no fast, English-language resource to guide them through Vietnamese immigration procedures.

What we built: A site laying out Vietnam Legal Support's visa and residency services (e-visas, extensions, work permits, marriage registration) with a clear path to reach the team fast.

Result: More inquiries from foreigners needing urgent or ongoing visa help.

on-admin.com
On-Admin homepage: licensed administrative agent office for visa filings, appeals, and certified translation in Korea
행정사사무소 온 - 외국인 기업인허가, 비자, 번역Licensed Administrative Agent Office21
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Problem: Foreign investors and residents in Korea faced visa, licensing, and translation requirements scattered across separate agencies.

What we built: A one-stop site for On-Admin's licensed 행정사 services (visa filings, business licensing, certified translation, and administrative appeals), positioning the office as a single point of contact from first document to final approval.

Result: More inquiries from foreign investors and residents needing Korean administrative services.

donghasanghoe.com
동하상회 homepage: warehouse-style vintage and consignment store in Icheon, Korea
동하상회Vintage & Consignment Store22
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Problem: A warehouse-style vintage and consignment store in Icheon had no online presence, making it hard for buyers to find hours, location, and daily new arrivals.

What we built: A site covering the store's vintage and luxury consignment floors, directions, and hours, with local SEO foundations (breadcrumb schema, IndexNow, and guide content) for fast search indexing.

Result: A discoverable storefront for nearby buyers searching for vintage and consignment shopping in the Icheon–Yeoju area.

Plans

Choose the scope that fits

Every tier gets the same team and the same production-grade code. Only the scope changes.

Basic

Basic

A focused site that gets you live.

₩300,000one-time

+ ₩100,000/mo minimum

Covers server hosting, ongoing maintenance, and SEO work after launch.

  • Single-page or few-page site
  • Mobile-first responsive design
  • Core on-page SEO setup
  • Launch in weeks, not months
Start a project

Reply within one business day

Most popularPremium

Premium

A full site built to grow with you.

₩500,000one-time

+ ₩100,000/mo minimum

Covers server hosting, ongoing maintenance, and SEO work after launch.

  • Multi-page site with CMS
  • Bilingual EN / KO localization
  • Technical SEO & analytics setup
  • 30 days of post-launch support
Start a project

Reply within one business day

Pro

Pro

A custom platform for complex needs.

₩1,000,000one-time

+ ₩150,000/mo minimum

Covers server hosting, ongoing maintenance, and SEO work after launch.

  • Custom features & integrations
  • Dedicated team throughout
  • Ongoing SEO & growth support
  • Priority turnaround
Start a project

Reply within one business day

Custom

Custom

For teams that need something built entirely around them.

Custom quotescoped per project

+ custom monthly fee

Server hosting, maintenance, and SEO work, scoped after reviewing your project.

  • Scoped entirely around your requirements
  • Deep integrations & bespoke features
  • Ongoing dedicated support
  • Flexible engagement, not a fixed template
Start a project

Reply within one business day

About

A studio, not an agency roster

Based in Seoul, working everywhere

Studio Expertise is the web design, development, and SEO practice of Expert Sapiens, building considered, high-performing websites for clients across Korea and the English-speaking world.

No templates, no subcontracted freelancers, no shortcuts. The people who scope your project are the people who build it.

No templatesNo subcontractorsDirect team, start to finishNative EN / KOSEO-first
FAQ

Questions, answered

Everything prospective clients ask before starting a project.

Do you build bilingual English and Korean websites?

Yes. Bilingual delivery is core to how we work. Every project gets native English and Korean copywriting and UX adapted per market, not machine translation, handled by one team fluent in both.

Do you subcontract work to freelancers?

No. Studio Expertise doesn't use templates or outside freelancers. The same team that scopes your project designs and builds it, start to finish.

How long does a website project take?

It depends on scope. The Basic plan is built for a fast launch: weeks, not months. Premium and Pro projects run longer to cover CMS setup, bilingual localization, and custom integrations.

Is Studio Expertise part of Expert Sapiens?

Yes. Studio Expertise is the web design, development, and SEO practice of Expert Sapiens, based in Seoul.

What's included in the Basic, Premium, and Pro plans?

Basic covers a single-page or few-page site with mobile-first design and core on-page SEO. Premium adds a multi-page site with a CMS, bilingual EN/KO localization, technical SEO, analytics, and 30 days of post-launch support. Pro adds custom features and integrations, a dedicated team throughout, and ongoing SEO and growth support.

Do you handle SEO, or is that a separate service?

SEO is built in from the first commit, not added on afterward. Technical SEO, structured data, and fast Core Web Vitals are part of every build.

Is there a monthly fee after launch?

Yes. Basic and Premium carry a minimum ₩100,000/month, Pro a minimum ₩150,000/month, and Custom is scoped after reviewing your project. It covers server hosting, ongoing maintenance, and continued SEO work, not a one-time build fee that goes unmaintained after launch.

Where is Studio Expertise based, and do you work with clients outside Korea?

We're based in Seoul and work with clients across both Korea and English-speaking markets.

How many websites has Studio Expertise built?

22 live client websites to date, spanning real estate, legal & immigration, translation, tax, health, retail, and marketing.

Do you offer support after the site launches?

Yes. Premium includes 30 days of post-launch support, and Pro includes ongoing SEO and growth support for as long as you need it.

How do I get started?

Send a project inquiry through the contact form. We reply within one business day.

Why work with us

Get a site built by the people who'll run it.

No templates, no handoffs, no subcontractors. Just one team, start to finish.

No templatesNo subcontractorsDirect team, start to finishNative EN / KOSEO-first
Contact

Ready to start your project?

Tell us what you're building. We reply within one business day.

or email us directly support@studioexpertise.com

Your site deserves more than a template