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 Patra Drilling Contractor (PDC) is a subsidiary of PT Pertamina Drilling Services Indonesia (PDSI), which falls under the umbrella of Subholding Upstream Pertamina. Established on September 11, 1981, PDC was the first national company in Indonesia to focus on providing offshore drilling services using domestic equipment. Over the years, PDC has diversified its services to include Accommodation Work Barge (AWB) and Catering services.
PDC has been instrumental in supporting Indonesia's energy sector by providing essential services such as heavy transport equipment, catering, and labor for onshore drilling operations. The company has consistently shown growth and improvement in its performance, with a notable revenue of Rp 2.88 trillion and a net profit of Rp 124 billion in 2024. This achievement was driven by strategic business optimizations, particularly in the Food & Lodging Services (FLS) and Heavy Transport Equipment Services (HTE) units.

PT Bank Rakyat Indonesia (Persero) Tbk, commonly known as BRI, is one of Indonesia's largest commercial banks and a state-owned enterprise. Established on December 16, 1895, in Purwokerto by Raden Bei Aria Wirjaatmadja, BRI has a long history of providing financial services to the Indonesian population. Over the years, BRI has evolved to meet the changing needs of its customers and has become a key player in Indonesia's banking sector.
BRI offers a wide range of banking products and services, including savings and current accounts, foreign currency deposits, mortgage loans, working capital loans, investment loans, and micro, small, and medium enterprise (MSME) loans. The bank also provides supply chain financing and bank guarantees, catering to both individual and corporate clients. With over 144 million micro deposit customers, BRI has a strong presence across Indonesia, with 449 branches and 13,863 ATMs.

PT Pamapersada Nusantara (PAMA) is a leading mining contractor in Indonesia, specializing in coal mining, energy, and heavy equipment services. As a subsidiary of PT United Tractors Tbk, which is part of the Astra International Group, PAMA has established itself as a pioneer in the mining industry since its inception in 1974. Initially a division within PT United Tractors, PAMA became a standalone company in 1993.
PAMA is committed to sustainable mining practices and adheres to Environmental, Social, and Governance (ESG) principles. The company focuses on providing comprehensive solutions for energy and mineral supply while prioritizing environmental sustainability and continuity. PAMA manages various mining projects, including coal, gold, and quarry operations, as well as construction projects such as dam building and road construction across Indonesia.

PT Sarana Multi Infrastruktur (Persero) (PT SMI) is a state-owned enterprise in Indonesia that plays a crucial role in financing and supporting infrastructure development across the country. Established on February 26, 2009, PT SMI operates under the Ministry of Finance and serves as a Special Mission Vehicle (SMV) to accelerate infrastructure projects that contribute to Indonesia’s economic growth and sustainable development.
PT SMI provides various financial solutions, including project financing, advisory services, and project preparation assistance. Its primary focus is on infrastructure sectors such as transportation, energy, water supply, telecommunications, and social infrastructure. By offering innovative and flexible financing schemes, PT SMI helps bridge the gap between government funding and private sector investment, ensuring that critical infrastructure projects can be realized efficiently.

PT SUCOFINDO, or PT Superintending Company of Indonesia, is a prominent Indonesian company established on October 22, 1956. It specializes in providing a wide range of services including inspection, testing, certification, consultancy, and training across various sectors such as agriculture, forestry, mining (both oil and non-oil), construction, industrial processing, maritime, fisheries, government, transportation, information systems, and renewable energy.
PT Superintending Company of Indonesia (SUCOFINDO) was established on October 22, 1956. PT SUCOFINDO’s history began as Indonesia’s first inspection company, with share ownership by the Government of the Republic of Indonesia and SGS Geneva.
In December 2021, PT SUCOFINDO joined the Holding BUMN Survey Services (IDSurvey) with PT Biro Classification Indonesia (Persero) and PT SUCOFINDO to provide even better services.

A new chapter in the history of Bank Indonesia as an independent central bank was ushered in on 17th May 1999 when the Bank Indonesia Act (No. 23 of 1999) was enacted, which has subsequently been amended by Act No.6 of 2009. The BI Act confers status and position as an independent state institution, free from interference by the Government and/or other parties, unless explicitly stipulated in prevailing laws.
In accordance with the BI Act, Bank Indonesia is a fully autonomous state institution in terms of formulating and implementing its duties and responsibilities. Furthermore, Bank Indonesia has a duty to reject or disregard any attempt of intervention or interference by any party, while external parties have no grounds or justification to interfere with task implementation at Bank Indonesia.
The special status and position conferred are necessary to ensure Bank Indonesia can effectively and efficiently implement its role and function as the monetary authority.

PT Bank BCA Syariah is a prominent Islamic bank in Indonesia, offering a wide range of Sharia-compliant financial products and services. Established to cater to the growing demand for Islamic banking, BCA Syariah operates under the supervision of the Financial Services Authority (OJK) and Bank Indonesia. The bank is committed to providing reliable and competitive banking solutions that adhere to Islamic principles.
BCA Syariah offers a variety of products and services designed to meet the diverse needs of its customers. These include Sharia-compliant savings accounts, current accounts, financing options such as Murabahah (cost-plus financing), Ijarah (lease financing), and Musyarakah (profit-sharing financing). The bank also provides investment products like Sukuk (Islamic bonds) and Tabarru' (donations) accounts. Additionally, BCA Syariah offers electronic banking services through its Klik BCA Syariah platform, allowing customers to conduct transactions conveniently and securely online.