| Real Estate Business | Ministry of Land, Infrastructure, Transport and Tourism License (2) No. 8604 |
|---|---|
| Special Construction Business (electrical contracting business) | Ministry of Land, Infrastructure, Transport and Tourism License (Toku-2) No. 19918 |
| Special Construction Business (general architectural and construction, scaffolding, excavation and concreting, sheet metal business, glazing, painting, waterproofing, and interior finishing business) | Ministry of Land, Infrastructure, Transport and Tourism License (Toku-2) No. 19918 |
| Special Construction Business (plumbing business) | Ministry of Land, Infrastructure, Transport and Tourism License (Toku-2) No. 19918 |
| Special Construction Business (demolition business) | Ministry of Land, Infrastructure, Transport and Tourism License (Toku-2) No. 19918 |
| Ordinary Construction Business (firefighting facilities business) | Ministry of Land, Infrastructure, Transport and Tourism License (Han-2) No. 19918 |
| First-class architect registered office | First-class architect registered with the Governor of Tokyo No. 61521 |
| Security Service Business | Tokyo Metropolitan Public Safety Commission Certification No. 89 |
| Condominium Management Business | Ministry of Land, Infrastructure, Transport and Tourism (4) No. 032290 |
| General Worker Dispatching Business | Ha13-305494 |
| ISO | ISO 9001: 2015 ISO 14001: 2015 |
*As of June 10, 2021
