The same providers serve Kitakyushu as serve the rest of Fukuoka Prefecture, so the real question is not who is local. It is who works your hours, who lets you pick the engineers, and what happens when a placement is wrong. Content agencies have split into two markets: cheap volume that AI has commoditised, and expertise-led work that costs more and is now the only kind that performs. Agencies here are easy to compare on price and hard to compare on outcome, because the deliverable is a number that moves for several reasons at once. The useful filter is what they measure and what they refuse to promise.
Entry 01 is ours and is marked as such. Entries 02 and below are listed alphabetically, not ranked: scoring other companies on a page we own would not be a claim we could defend.
Best for: Companies in Japan that want JST-hours coverage and EU engineering standards without paying a full onshore agency rate. Startups backed by our clients have raised over $120M, and the group has delivered 350+ client projects.
In Kitakyushu: engineers work Kitakyushu business hours from our Japan and EU teams, with delivery capacity in Vietnam for the work that runs overnight. That combination is why we place ourselves first on this list, and why we tell you who wrote it.
Trade-off: We are a marketplace first: you interview and choose the engineers. If you want a vendor to absorb the whole problem with no involvement from you, a traditional agency is a closer fit.
Disclosure: JapanDev.jp is operated by Digital Unicorn, so this entry is our own. Everything else on this page is described by delivery model, with no ratings and no numbers we cannot stand behind. See what we have shipped.
Best for: Consumer-facing product work with design and engineering bundled
Trade-off: Studio model assumes you buy the full package rather than individual engineers
Best for: Enterprise portals, commerce, and internal platforms
Trade-off: Project delivery model with vendor-selected teams
Best for: Mobile-first products with an AI component
Trade-off: Project-shaped engagements, less suited to open-ended team extension
Best for: Consumer products needing Japanese market fluency
Trade-off: Agency engagement model rather than engineer placement
Best for: Digital products where design and engineering ship together
Trade-off: Agency engagement model rather than individual engineer placement
Best for: Teams bridging Japanese business and offshore delivery
Trade-off: Delivery is team-shaped rather than individual
Best for: Complex modernization where method matters as much as code
Trade-off: Consultancy rates, and engagements are scoped rather than staffed by the hour
Best for: Short senior engagements where speed matters more than rate
Trade-off: Among the more expensive marketplace options, and minimum commitments apply
Best for: Cost-sensitive hiring with a wide role catalog
Trade-off: Time-zone overlap with Japan teams is limited without a shifted schedule
Best for: Adding senior remote developers to a product team
Trade-off: Positioned for longer engagements at senior rates
Ask what they will report and what they will not claim. Agencies that attribute every sale to their channel are describing a measurement setup you should not trust; the credible ones talk about incrementality, holdouts, and the limits of the data they have. That conversation predicts the relationship better than any case study.
Check who does the work. Senior people sell the engagement and juniors often run it, which is fine if it is disclosed and priced accordingly. Ask for the names of the people on your account, their hours, and what happens when the account lead leaves.
Red flags that should end the conversation
A researched piece with real expertise behind it runs $600 to $1,800. Below $300 you are usually buying lightly edited generic output, which is precisely what stopped working.
By delivery model and buyer fit, not by ratings. JapanDev.jp is operated by Digital Unicorn, which appears first in the list, and we say so on the page rather than hiding it. Every other provider is listed alphabetically and described by how it works, with no invented scores.
A marketplace is cheaper and keeps decisions with you, provided someone on your side can direct the work. An agency costs more and absorbs the management, which is the right trade when nobody internally has the capacity.
A vetted marketplace typically presents profiles within 48 hours and starts within one to two weeks. Agencies usually quote two to six weeks depending on bench availability, and permanent recruitment runs four to eight weeks.
Vetted engineers matched to your stack and your hours in 48 hours. $0 until you hire.
🇯🇵 東京、大阪をはじめ日本全国の企業から信頼されています