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 Reska Multi Usaha, also known as KAI Services, is a subsidiary of PT Kereta Api Indonesia (Persero) established in 2003 with more than two decades of experience. The company was founded to implement and support the policies and programs of PT Kereta Api Indonesia (Persero) as the parent company, particularly in the railway restaurant business and other related services. PT Reska Multi Usaha operates in three core business areas: On Board Services, which include Sales On Train, On Train Cleaning, and Passenger Amenities; Integrated Facility Services, which consist of Security, Parking, Cleaning Service, and Outsourcing; and Commercial Services, which cover Restaurant, General Service, Cafe, and Catering.

PT Pertamina Training & Consulting (PTC) is a subsidiary of PT Pertamina (Persero), Indonesia’s state-owned oil and gas company. Established in 1999 under the name PT Patra Tridaya, the company officially began its operations in 2002. PTC was formed to support Pertamina’s strategic objectives in human resource development and operational excellence. Over the years, PTC has evolved into a multifaceted service provider offering a wide range of solutions in training, consulting, manpower supply, security services, event management, and competency assessment. Its role within the Pertamina Group is to ensure that the workforce and organizational systems are aligned with global standards and capable of supporting the dynamic needs of the energy sector.

Bank Rakyat Indonesia, commonly known as BRI, is one of the oldest and largest banks in Indonesia. Established in Purwokerto, Central Java on December 16, 1895 by Raden Bei Aria Wirjaatmadja, BRI began as a small institution providing financial services to the local elite. Over time, it grew into a vital player in Indonesia’s banking system, particularly known for its strong commitment to supporting microfinance and rural development.
After Indonesia’s independence, BRI was designated as the first government-owned bank under a regulation passed in 1946. This solidified its role in the country’s economic growth and national development. In the 1990s, BRI transitioned into a limited liability company, and by 2003 it had become a publicly traded entity, with the Indonesian government maintaining majority ownership.

Bank Syariah Nasional is a sharia-based financial institution that represents a new chapter in Indonesia’s banking industry. Established on October 2, 2025, the bank operates as a subsidiary of Bank Tabungan Negara and is headquartered at Menara Bank BTN, Jakarta. The institution was created to strengthen the presence of Islamic banking in Indonesia, offering financial services that comply with sharia principles while addressing the needs of both individual and business customers. Its foundation reflects the growing demand for ethical and faith-based financial solutions in the country, positioning itself as a trusted partner for communities seeking transparency, fairness, and inclusivity in financial transactions.

PT Emas Antam Indonesia (EAI) is a subsidiary of PT Aneka Tambang Tbk (ANTAM) established as part of ANTAM’s initiative to strengthen its retail gold sales stream, particularly through expansion in the jewelry and micro-gold segments. EAI offers precious metal products with a guarantee of 99.99% pure gold certified by the London Bullion Market Association (LBMA). The company manages multiple sales channels including Butik Emas Logam Mulia (BELM), online marketplaces such as Tokopedia, Shopee, Lazada, Blibli, and TikTok, cash-on-delivery services, ATM Emas, and digital service applications.

PT Pamapersada Nusantara (PAMA) is a prominent mining contractor in Indonesia, recognized for its expertise 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 played a vital role in the nation’s mining industry since its establishment in 1974. Initially operating as a division within PT United Tractors, the company became an independent entity in 1993, marking the beginning of its journey as one of the country’s leading mining contractors.
Throughout its history, PAMA has demonstrated a strong commitment to sustainable mining practices. The company consistently adheres to Environmental, Social, and Governance (ESG) principles, ensuring that its operations not only deliver energy and mineral resources but also prioritize environmental sustainability and long-term continuity. This dedication is evident in the wide range of projects managed by PAMA, which include coal, gold, and quarry mining, as well as construction initiatives such as dam building and road development across Indonesia.

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.