PT Surveyor Indonesia (Persero), 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 (Persero) 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 (Persero) 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 United Tractors Tbk is a subsidiary of PT Astra International Tbk (“Astra”), one of the largest and most established business groups in Indonesia. With its extensive experience in serving diverse industries and sectors, United Tractors has built a strong foundation as a leading company. Since September 19, 1989, United Tractors has been a public company, listing its shares on the Indonesia Stock Exchange, which was formerly known as the Jakarta Stock Exchange and Surabaya Stock Exchange. Currently, Astra owns 59.5% of the Company’s shares, while the remaining shares are held by the public.
United Tractors plays a vital role in the nation’s economy through its five business pillars: Construction Machinery, Mining Contracting, Mining, Construction Industry, and Energy. These pillars reflect the Company’s commitment to providing integrated solutions and contributing to the development of Indonesia’s industrial and infrastructure sectors. With its broad portfolio, United Tractors has positioned itself as a key player in supporting national growth and sustainability.

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.

PT Angkasa Pura Suport (APS) is a subsidiary of PT Angkasa Pura I (Persero) (Now, PT Angkasa Pura Indonesia / InJourney Airports), established in March 2012 to provide comprehensive and integrated property maintenance services, particularly for airport facilities. The company was founded with the vision of supporting the parent company in delivering world-class services to passengers and visitors at airports across Indonesia. APS has since evolved into a key player in the aviation support industry, offering a wide range of services that extend beyond airport operations to include commercial and public properties such as hospitals and office buildings.

PT Pelita Air Service (PAS), established in 1970 in Indonesia, began its journey in the exploration and exploitation of oil and natural gas fields. Over the years, PAS has evolved into a leading provider of aviation and industrial services, offering award-winning solutions that cater to diverse needs. As part of its commitment to excellence, the company has built a reputation for reliability and innovation in transportation, training, maintenance, and other specialized services.
In aviation, PAS has demonstrated exceptional capabilities, logging 37,884 flight hours between 2014–2017. Its extensive network includes five base stations, with a fleet comprising 15 rotary-wing aircraft (helicopters) and nine fixed-wing planes. Notably, PAS plays a crucial role in Papua’s "1 Fuel Price" program, transporting over 150 kiloliters of fuel monthly to support equitable fuel access in remote areas.

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 Elnusa Fabrikasi Konstruksi (EFK) is a subsidiary of PT Elnusa Tbk, which is part of the Pertamina Group. Established in 1982, EFK has become one of the most experienced and comprehensive threading factories in Batam. With a land area of 35,158 m² consisting of office facilities, workshops, and open yards for pipe operations and storage, we are ready to provide the best services in Oil Country Tubular Goods (OCTG), Fabrication, Construction, and Maintenance services.
The company name changed from PT Purna Bina Nusa to PT Elnusa Fabrikasi Konstruksi based on Notarial Deed No. 12 dated December 22, 2010, made before Notary Yulida Desmartiny in Jakarta. This change was based on the company's expansion into the fields of engineering, manufacturing and fabrication, processing, as well as the production and repair of oil equipment, and general trade import-export.
PT Elnusa Fabrikasi Konstruksi envisions becoming a leading oil equipment manufacturing company by consistently delivering the highest quality products and services to both domestic and international oil and gas industries. This ambition reflects a commitment to innovation, reliability, and excellence in every aspect of its operations.

PT Patra Drilling Contractor (PDC) is a national company in Indonesia that specializes in providing drilling services for the oil and gas industry. Established on September 11, 1981, PDC was the first Indonesian company to offer offshore drilling services, marking a significant milestone in the country’s energy sector. Headquartered in Jakarta, PDC has grown into a reputable service provider with a workforce ranging from 1,001 to 5,000 employees. Over the years, the company has expanded its capabilities to include onshore drilling support, auxiliary well services, and integrated support functions such as catering and logistics.