PT Reska Multi Usaha, also known as KAI Services, is a subsidiary of PT Kereta Api Indonesia (Persero) established in 2003. The company's primary goal is to support and implement the policies and programs of PT Kereta Api Indonesia, especially in the railway restaurant business and other related services.
The company operates in three core business areas: On Board Services, Integrated Facility Management, and Commercial Services. On Board Services include sales on trains, train cleaning, and passenger amenities. Integrated Facility Management encompasses security, parking, cleaning services, and outsourcing. Commercial Services include restaurants, general services, cafes, and catering.
The origins of PT Reska Multi Usaha date back to the Dutch colonial era when the government provided railway restaurants to cater to passengers' needs during their journeys. In 1971, during the early days of PT Kereta Api Indonesia, a dedicated unit called RESTORKA was established to manage railway restaurants. Initially, RESTORKA offered simple beverages like "Es Siripit," but it expanded its menu over time, including the famous "Nasi Goreng Parahyangan" when the KA Parahyangan train was launched.

PT Bank Negara Indonesia (Persero), Tbk (BNI) was originally established in Indonesia as a central Bank under the name of “Bank Negara Indonesia” on July 5, 1946. Subsequently, BNI became “Bank Negara Indonesia 1946”, with the status of a State-owned Commercial Bank. Additionally, BNI’s role as a Bank was mandated to improve the people’s economy and participate in national development.
BNI as a State Owned Enterprise was the first to became a public company after listing its shares on the Jakarta Stock Exchange and the Surabaya Stock Exchange in 1996. To strengthen its financial structure and competitiveness in the national banking industry, BNI conducted a number of corporate actions, including being recapitalized by the Government in 1999, Government share divestment in 2007, and a limited public offering in 2010.

Bank Mandiri Taspen, also known as Bank Mantap, is a subsidiary of Bank Mandiri that provides banking services specifically for retired civil servants (PNS) and military personnel (TNI / Polri). Established on February 23, 1970, as Bank Pasar Sinar Harapan Bali, it has undergone several transformations over the years. Initially a cooperative, it became a limited liability company (PT) on November 3, 1992, and later transformed into a full-fledged bank.
In 2008, Bank Mandiri acquired Bank Sinar Harapan Bali, leading to a restructuring process that involved Bank Mandiri, PT Taspen, and PT Pos Indonesia. This restructuring resulted in the renaming of the bank to PT Bank Mandiri Taspen Pos on August 7, 2015, and later to PT Bank Mandiri Taspen on October 9, 2017.
Bank Mandiri Taspen offers a variety of financial products and services tailored to the needs of its target customers, including savings accounts, deposits, loans, gold pawn services, and bill payment platforms. The bank is committed to supporting the financial well-being of retired civil servants and military personnel, helping them maintain a stable income even after retirement.

PT Aerotrans Services Indonesia, hereinafter more commonly known under the brand Aerotrans, commenced its journey in 1988 under the name PT Mandira Erajasa Wahana (MEW), as a business unit of PT Aero Wisata and a part of the Garuda Indonesia Group. Its core business lies in transportation services, tourism, and corporate mobility solutions, while also serving as a key ground transportation provider supporting the national airline PT Garuda Indonesia (Persero) Tbk.
Based on the Extraordinary General Meeting of Shareholders held on 9 May 2011, the company name was officially changed to PT Aerotrans Services Indonesia, as stated in Deed No. 03 dated 10 May 2011. The company’s Articles of Association have undergone several amendments, most recently Deed No. 8 of 2008, referring to Deed No. 7 dated 31 October 2022 by Notary Mira Aranti Ciptadi, SH., M.Kn., regarding changes to the Board of Directors and Commissioners. This amendment was approved by the Ministry of Justice of the Republic of Indonesia under the decision AHU-AH.01.03-0452502 of 2021, dated 24 September 2021.

Husky-CNOOC Madura Limited (HCML) is a key player in Indonesia’s upstream oil and gas industry. Operating under a Production Sharing Contract (PSC) with the Indonesian government, HCML is a joint venture between Husky Oil Madura Partnership (40%), China National Offshore Oil Corporation Southeast Asia Limited (40%), and SMS Development Ltd. (20%). The company’s mission is to responsibly explore and produce hydrocarbons in the Madura Strait, contributing to national energy security and regional development.
HCML’s origins date back to 1982, with the formation of Husky Oil Madura Limited. In 2011, following a strategic partnership with CNOOC, the company was restructured and rebranded as HCML. Since then, it has focused on developing offshore gas fields, with the BD Field being its flagship project. Located approximately 65 kilometers east of Surabaya and 16 kilometers south of Madura Island, the BD Field contains significant reserves of natural gas and condensate. Its development has been instrumental in supplying clean energy to East Java and beyond.

PT Surveyor Indonesia, established on August 1, 1991, is a prominent player in the testing, inspection, and certification (TIC) industry. The company provides independent assurance services across various sectors, including industry and trade, energy and mineral resources, telematics, transportation, agriculture, forestry, maritime, and environmental management.
With a strong commitment to reliability and security, PT Surveyor Indonesia has built a solid foundation as a trusted partner for both government and private sectors. The company focuses on delivering innovative services that add strategic value to national interests in the long term.
PT Surveyor Indonesia is part of the IDSurvey Holding, which includes other state-owned enterprises like PT Biro Klasifikasi Indonesia and PT SUCOFINDO. The company continues to evolve by embracing new technologies and expanding its service offerings to meet the ever-changing needs of its clients.
The markets we serve cover a wide range of service areas including industry, government, regional development, oil and gas, minerals, systems and certification, environment, agriculture and outsourcing management.

PT Pertamina Training & Consulting (PTC), a subsidiary of PT Pertamina (Persero) under the Finance and Services category, began as a paper company in 1999 under the name PT Patra Tridaya and started operations in 2002 with its first line of business: Training & Consulting. With extensive experience in human resource management and a strong focus on human capital development, we have continued to evolve in line with customer needs by offering services in Event Organizing, Training & Consulting, Manpower Supply, Security Services, and Assessment Center, all aligned with ISO 9001:2015 standards as part of our commitment to deliver top-quality services to our clients, guided by the 6C values: Clean, Confident, Commercial, Competitive, Customer Focus, and Capable.

The RDMP Balikpapan JO (Refinery Development Master Plan - Joint Operation) is a major national energy infrastructure initiative being developed by PT Kilang Pertamina Balikpapan, a subsidiary of Indonesia’s state-owned oil and gas company PT Pertamina (Persero). Its primary goal is to modernize and expand the Balikpapan refinery located in East Kalimantan, boosting its capacity from 260,000 barrels per day to 360,000 barrels per day. This upgrade is not merely a numerical enhancement but a strategic move to improve the refinery’s ability to produce cleaner, higher-quality fuels in line with international environmental standards.
The project is being executed through a joint operation involving key players such as Hyundai Engineering, Rekayasa Industri, SK Engineering and Construction, and PT PP. These firms bring together a blend of global expertise and local resources to address the engineering complexities of integrating cutting-edge technology into an existing facility. Among the technological upgrades is the inclusion of equipment capable of producing fuels compliant with EURO V standards, which means lower sulfur content and reduced emissions. New units such as the Crude Distillation Unit (CDU-IV), Hydro Cracking Units, and the Heavy Vacuum Unit have been installed or revamped to ensure efficiency and compliance with global benchmarks.