Venture Japan publishes starting prices for every service line it offers — incorporation of a GK, KK or branch, ongoing accounting, payroll and even executive manager services. No other firm we have researched puts this much of its pricing online in English.
The firm has operated since 2004 and issues bilingual documents. Its published material does not mention Business Manager Visa work or bank account opening support, so founders needing those will likely need a second firm alongside it.