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.

Citilink Indonesia has become the fastest growing airline in Indonesia since 2011 at the time when it took the first Airbus A320 aircraft and accelerated growth as part of Garuda Group’s effort to compete aggressively on the budget traveler segment.
PT Citilink Indonesia is a subsidiary of Garuda Indonesia which based on the Natakusumah Notarial Deed No. 01 dated January 6th, 2009 in Sidoarjo, East Java. The deed of establishment was approved by Ministry of Law and Human Rights (Kemenkunham) under approval letter No. AHU-14555.AH.01.01 year 2009 dated April 22nd, 2009. Citilink Indonesia's shareholder at the time of its establishment was 67% PT Garuda Indonesia (Persero) Tbk. ("Garuda") and 33% PT Aerowisata ("Aerowisata").
Since May 2011, Citilink Indonesia’s flight was managed by Garuda Indonesia’s Strategic Business Unit (SBU) which operated under Garuda’s AOC and using Garuda flight number.

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 Telkomsel, officially known as PT Telekomunikasi Selular, is the largest mobile telecommunications operator in Indonesia. Established on May 26, 1995, it operates as a subsidiary of Telkom Indonesia, with SingTel holding a minority stake. Telkomsel provides a wide range of services, including mobile broadband, IoT solutions, and digital advertising, among others. The company serves over 170 million customers and operates more than 236,000 base transceiver stations (BTS) across Indonesia, making it a leader in the telecommunications industry.
Here at Telkomsel, we continue to open up a world of more by enabling digital connectivity, digital platforms, and digital services. Over 29 years of serving the nation, we have consistently implemented the latest broadband technology, including 5G. We keep progressing to enrich our innovative digital solutions, including Mobile Gaming, Digital Entertainment, Digital Lifestyle, Mobile Financial Services, Enterprise Solutions, Fixed Mobile Convergence, and the Internet of Things.

Bank Central Asia (BCA) is one of Indonesia's largest private banks, established in 1957. Over the years, BCA has grown significantly and now operates a vast network of branches and ATMs across the country. The bank is known for its wide range of financial services, including savings accounts, credit cards, loans, and investment products.
The bank has a strong reputation for its customer service and innovative banking solutions. BCA offers various digital banking services through its online platform, myBCA, which allows customers to manage their accounts, apply for loans, and perform other banking transactions conveniently from their homes.
In addition to its extensive branch network, BCA also provides specialized services for businesses and corporations, offering tailored solutions to meet their financial needs. The bank is committed to supporting local businesses and has various promotional offers and partnerships to help them grow.
BCA's headquarters is located in Jakarta, and the bank is regulated and supervised by the Financial Services Authority (OJK) and Bank Indonesia. The bank's mission is to provide reliable and efficient banking services to its customers while contributing to the economic development of Indonesia.

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.

PT Pelayaran Nasional Indonesia or PT PELNI (Persero) is a state-owned shipping company established on April 28, 1952, based on the Decree of the Minister of Transportation No. M2/1/2 dated April 28, 1952. The company operates in the field of sea transportation services, delivering reliable and professional service to its customers.
PT PELNI operates a fleet of passenger ships, fast ferries, and cargo vessels. Our company serves domestic routes and reaches over 94 ports across the Indonesian archipelago. The facilities and services provided on board our ships are designed to ensure safety and comfort standards for customers and crew members, supported by professional human resources that prioritize customer satisfaction.

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.