The same providers serve Toyota as serve the rest of Aichi 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. SOC 2 is a sales blocker before it is a security programme, which is why the useful question is how fast a provider gets you to a report your prospects will accept. Security vendors sell two different things under one word: engineering that reduces risk, and paperwork that satisfies an auditor. Decide which you are buying before you compare quotes, because paying for one and expecting the other is how these engagements disappoint.
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 Toyota: engineers work Toyota 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: Enterprise transformation programs across many systems
Trade-off: Cost structure and governance overhead make it a poor fit for small teams
Best for: Enterprise application management with regulated-industry experience
Trade-off: Sized for enterprise contracts, with the process that implies
Best for: Multi-year enterprise programs with procurement requirements
Trade-off: Enterprise pricing and process, rarely a fit under ten engineers
Best for: Long-term managed services and large ERP estates
Trade-off: Contracting cycle and minimum size rule out most mid-market projects
Best for: Regulated-industry software with compliance requirements
Trade-off: Mid-market pricing above pure offshore options
Best for: Financial services and automotive engineering programs
Trade-off: Enterprise contracting, with the lead time that implies
Best for: Healthcare, retail, and enterprise application projects
Trade-off: Project-based contracting rather than flexible capacity
Best for: Platform and data programs needing sustained team capacity
Trade-off: Sized for programs rather than for one or two engineers
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
Judge a security provider by its report rather than its pitch. Findings should reproduce first time, be ranked by real exploitability rather than by scanner severity, and be written so a developer can fix them without a translation layer. Ask for a redacted sample before you sign anything, and treat reluctance as an answer.
Agree the retest before the engagement starts. A findings report with no follow-up leaves you with a list and no evidence that anything improved, which is the part your customers and auditors actually ask about. Retest scope, timing, and cost belong in the original quote.
Red flags that should end the conversation
Readiness usually takes eight to sixteen weeks, then a Type I report follows quickly and a Type II requires an observation window of three to twelve months. Anyone promising a Type II in weeks is describing something else.
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