.co.jp
Classical Era (–2010)Restricted to Japanese corporations. One domain per organization. The strongest trust signal in Japan.
Observer's Note
Armored like a fortress. Only those bearing the credential of corporate personhood may don this shell.
Vibe Tags
Observed Specimens
Domain choices shown here reflect each organization's own decisions and are not endorsements by this site.
Japan's largest automaker with global operations.
A symbol of Japanese corporate identity. While toyota.com exists, the official Japanese site uses .co.jp.
Electronics and entertainment conglomerate.
A global brand, yet the Japanese corporate site uses .co.jp — a statement of trust and prestige.
Global gaming company. Switch, Mario, and more.
The pride of a Kyoto heritage company expressed through .co.jp.
Cloud accounting software for SMBs and sole proprietors.
A SaaS company that chose .co.jp for its B2B nature. A trust signal for corporate clients.
Diversified electronics manufacturer, from home appliances to industrial equipment.
A pillar of Japanese manufacturing. .co.jp asserts legitimacy as a Japanese corporation.
One of Japan's largest e-commerce malls, expanding into finance and telecom.
The gateway to the Rakuten ecosystem. A .co.jp domain symbolizing Japanese e-commerce culture.
Automobile and motorcycle manufacturer, also entering robotics.
Like Toyota, the Japanese corporate site uses .co.jp. The split with honda.com is noteworthy.
Operator of AbemaTV. Integrated IT company spanning advertising, media, and gaming.
An internet company that chose .co.jp — reflecting its stature as a TSE Prime-listed corporation.
Mobile gaming, sports, and healthcare. Operates Yokohama DeNA BayStars.
A mobile-native company using .co.jp to project corporate legitimacy. Trust signal for a diversified conglomerate.
Cloud-based HR and labor management software.
Chose .co.jp for the trust-sensitive HR domain. Designed to reassure corporate clients.
Developer of groupware including kintone and Garoon.
A SaaS company powering Japan's work-style reform. .co.jp conveys "a Japanese company for Japanese companies."
Developer of KARTE. Customer experience (CX) platform.
Uses .co.jp to differentiate from the US company plaid.com. Asserts legitimacy as a Japanese corporation.
No-code app development platform.
.co.jp builds trust for an enterprise-facing no-code SaaS. Appeals to corporate clients.
Spot consulting matching platform.
A B2B knowledge-sharing platform. .co.jp ensures trust in business-to-business transactions.
Healthcare IT company. Operates online medical consultation service "CLINICS."
.co.jp is an essential choice for healthcare IT. Trust from both patients and medical institutions is vital.
Platform for healthcare professionals. Parent operator of m3.com.
Corporate domain is .co.jp, service domain is m3.com. Domain split by purpose.
Major information services company covering HR, housing, dining, and travel.
One of Japan's largest information service companies. .co.jp supports corporate credibility across diverse business units.
Japan's largest telecom group. Parent of NTT Docomo and others.
The backbone of Japan's telecom infrastructure. The gravitas of a 3-letter .co.jp. Former state-owned trust embedded in the domain.
Telecom carrier known for the au brand.
Consumer-facing is au.com, but the corporate site uses .co.jp. Separating consumer brand from corporate identity.
One of the "Big Five" trading companies. From resources and energy to DX.
A zaibatsu trading house dating back to the Edo period. .co.jp expresses centuries of history and prestige in the Japanese economy.
Big Five trading company. Metals, transportation, construction, and more.
Heir to the Sumitomo zaibatsu. .co.jp is the "formal attire" of Japanese corporations. Roots stay in Japan despite global expansion.
Japan's largest advertising agency. Dominant share of the domestic ad market.
Group holding uses dentsu.com, but domestic operations keep .co.jp. A textbook example of domain identity splitting.
Japan's largest securities firm. Asset management and investment banking.
.co.jp for financial institutions is a mark of trust for custodial assets. For securities firms, .co.jp matters more than .com.
One of the "Big Four" life insurance companies in Japan.
Even with hyphens, .co.jp credibility prevails. The domain contributes to the trust foundation of long-term insurance contracts.
Sensor and measurement equipment maker. Known for exceptional profitability.
One of the highest market-cap manufacturers. For B2B manufacturers, .co.jp is a trust signal to business partners.
Electronic components maker. World leader in ceramic capacitors.
A global leader in B2B electronics based on .co.jp. "Visible trust" for a company that makes invisible components.
Observed Habitats
Prevalence
⚠ Caution
Requires legal corporate status. Strictly one domain per entity.