Kyoei Security Service Co., Ltd.

Kyoei Security Service Co., Ltd. (KSS) is a Japanese security services company headquartered in Chiyoda, Tokyo. It was established in May 1985 for the purpose of traffic control security work, and traffic control remains its founding business. Over the decades it expanded into facility security, event security, parking security, reception and concierge services, highway security, bodyguard services, airport firefighting operations, parking lot operation and management, condominium agency management, and building and equipment management. The company is listed on the Tokyo Stock Exchange Standard Market, having originally listed on JASDAQ in March 2019. KSS positions itself around the philosophy of "sincerity" and "certainty," aiming to contribute to social safety. Its vision is to remain a company that adapts to constant change and does not fade over the years, continuing to focus on human-based security services. The company operates through the KSS Group, which includes subsidiaries such as Doto Keibi, KSS, Sanji Keibi Hoshō, Neo Amenity Service, KSS Kanagawa, KSS Osaka, Gōken Keibi Hoshō, Chūgoku Keibi Hoshō, and Jōsō Keibi Hoshō. Its service portfolio covers essential facilities including defense-related facilities, Japan Coast Guard facilities, nuclear-related facilities, airports and data centers, with 24/7 access control, intrusion monitoring and patrol operations. Facility security is described as the group's main business, while traffic control security is its original business with around 40 years of accumulated know-how. Event security has been provided at major international rugby and soccer tournaments and major marathon events. The company also offers bodyguard services, which have reportedly been requested by Hollywood stars. Since its JASDAQ listing, KSS has actively pursued M&A to expand its scale, acquiring numerous regional security companies between 2015 and 2026. In May 2020 it formed a business and capital alliance with SECOM. The company continues to operate nationwide through its group companies and provides web-based estimate requests for customers.

Kyoei Security Service Co., Ltd. was established in May 1985 for the purpose of traffic control security operations. Traffic control security remains the company's founding business, and it has accumulated around 40 years of know-how in this field, serving electrical, gas and other lifeline-related construction sites, paving sites and building sites. In April 2000, the company began facility security operations. In June 2002, it provided security for the 2002 FIFA World Cup at four venues: Miyagi Stadium, Saitama Stadium 2002, Niigata Stadium, and Shizuoka Prefecture's Ogasayama Sports Park Stadium. In August 2002, it started bodyguard services. In July 2015, the company made Doto Kidō Keibi a subsidiary. In September 2015, it absorbed TFK. In December 2015, it made Doto Keibi a subsidiary. In March 2016, its subsidiary Doto Keibi absorbed Doto Kidō Keibi. In March 2019, the company listed on JASDAQ (now the Tokyo Stock Exchange Standard Market). Since the JASDAQ listing, it has actively carried out M&A to expand its scale. In May 2020, it concluded a business and capital alliance with SECOM. In April 2022, it made Nihon Security Service (later KSS Osaka) a subsidiary. In August 2022, it made Daito Security a subsidiary. In February 2023, it made Gōken Keibi Hoshō a subsidiary. In October 2023, it made Tōshin Sangyō (later KSS Kanagawa) and Security subsidiaries. In December 2023, it made Tōhō Keibi Hoshō, headquartered in Chiba City, Chiba Prefecture, a subsidiary. In March 2024, its subsidiary Security made Tōhō Keibi Hoshō, headquartered in Asaka City, Saitama Prefecture, a subsidiary. In January 2025, it made Neo Amenity Service and Chūgoku Keibi Hoshō subsidiaries. In June 2025, it made Jōsō Keibi Hoshō a subsidiary. In August 2025, its subsidiary Vanguard absorbed Tōhō Keibi Hoshō (Saitama Prefecture), and it made Dentsū Traffic a subsidiary. In January 2026, a group reorganization was carried out among subsidiaries: Security absorbed Vanguard, Dentsū Traffic, and Tōhō Keibi Hoshō (Chiba Prefecture), and Security's trade name was changed to KSS. The company operates through the KSS Group, which includes Doto Keibi Co., Ltd., KSS Co., Ltd., Sanji Keibi Hoshō Co., Ltd., Neo Amenity Service Co., Ltd., KSS Kanagawa Co., Ltd., KSS Osaka Co., Ltd., Gōken Keibi Hoshō Co., Ltd., Chūgoku Keibi Hoshō Co., Ltd., and Jōsō Keibi Hoshō Co., Ltd. Its services cover essential facilities such as defense-related facilities, Japan Coast Guard facilities, nuclear-related facilities, airports and data centers, with 24/7 access control, intrusion monitoring and patrol operations. Facility security is the group's main business, and event security has been provided at major international rugby and soccer tournaments and major marathon events. Bodyguard services have reportedly been requested by Hollywood stars.

• Established for the purpose of traffic control security operations.

• Started facility security operations.

• Provided security at four venues for the 2002 FIFA World Cup.

• Started bodyguard services.

• Made Doto Kidō Keibi a subsidiary.

• Absorbed TFK.

• Made Doto Keibi a subsidiary.

• Subsidiary Doto Keibi absorbed Doto Kidō Keibi.

• Listed on JASDAQ (now Tokyo Stock Exchange Standard Market).

• Concluded business and capital alliance with SECOM.

• Made Nihon Security Service (later KSS Osaka) a subsidiary.

• Made Daito Security a subsidiary.

• Made Gōken Keibi Hoshō a subsidiary.

• Made Tōshin Sangyō (later KSS Kanagawa) and Security subsidiaries.

• Made Tōhō Keibi Hoshō (Chiba) a subsidiary.

• Subsidiary Security made Tōhō Keibi Hoshō (Saitama) a subsidiary.

• Made Neo Amenity Service and Chūgoku Keibi Hoshō subsidiaries.

• Made Jōsō Keibi Hoshō a subsidiary.

• Subsidiary Vanguard absorbed Tōhō Keibi Hoshō (Saitama); made Dentsū Traffic a subsidiary.

• Group reorganization: Security absorbed Vanguard, Dentsū Traffic, and Tōhō Keibi Hoshō (Chiba), and changed its trade name to KSS.

Human-centered security services emphasizing sincerity and certainty, with a focus on essential facilities and nationwide group coverage.

• Facility security

  Standing guard, patrol, access control, disaster prevention center operations for government offices, office buildings, commercial facilities, logistics warehouses, condominiums, etc.

• Traffic control security

  Vehicle and pedestrian guidance at construction and building sites; the company's founding business with around 40 years of know-how.

• Event security

  Screening at entrance gates, crowd control at sports events, concerts, fireworks festivals, etc.

• Parking security

  Vehicle guidance, fee collection at parking lots and entrances/exits.

• Reception and concierge

  Reception and concierge services for offices and facilities.

• Highway security

  Security services for highway facilities.

• Bodyguard services

  Close protection services, reportedly requested by Hollywood stars.

• Airport firefighting operations

  Firefighting operations at airports.

• Parking lot operation and management

  Operation and management of parking lots.

• Condominium agency management

  Agency management services for condominiums.

• Building and equipment management

  Management and inspection of buildings and equipment.

1. 1共栄セキュリティーサービス株式会社kyoei-ss.co.jp
2. 2企業・グループ情報 - 共栄セキュリティーサービス株式会社kyoei-ss.co.jp
3. 3事業内容・サービス案内 - 共栄セキュリティーサービス株式会社kyoei-ss.co.jp
4. 4理念・ビジョン - 共栄セキュリティーサービス株式会社kyoei-ss.co.jp
5. 5Kyoei Security Servicewikidata.org
6. 6共栄セキュリティーサービスja.wikipedia.org