Wintermar Offshore Marine

Wintermar Offshore Marine is an Indonesian offshore marine services company that operates a fleet of Offshore Support Vessels (OSVs) serving the offshore oil and gas industry and related sectors. According to its official website, the company describes itself as a "Regional Leader in Offshore Support Vessels" and an "Indonesian company operating to international standards." It has built its business over more than five decades, evolving from what it describes as "once a humble tug and barge operator" into a leading regional player in the OSV industry. The company's core business is vessel chartering and related offshore marine solutions. Its fleet includes Platform Supply Vessels (PSVs), Anchor Handling Tug Supply (AHTS) vessels, Fast Utility Vessels, and other specialised working ships. Services span rig moves and anchor handling, crew transport and rig supply, pipe tailing support, air diving and ROV support, fire fighting and emergency rescue, and harbour towage. Wintermar also offers ship management, crew management, and other support services tailored to the offshore oil and gas industry and beyond. Wintermar states that it has expanded its operations to more than 13 countries over the years and currently serves a wide range of multinational clients. Its website highlights that it is "TRUSTED BY top companies GLOBALLY" and emphasises a strong management team with a demonstrated track record of integrity and professionalism, continuous improvement, and long-term sustainability. The company's vision is "to be a leader in offshore marine services operating to high standards of excellence and integrity," while its mission focuses on providing high quality reliable marine support services through innovative solutions with a strong commitment to safety. As a publicly listed Indonesian company, Wintermar communicates with investors through annual reports, sustainability reports, investor updates, and AGM materials. Its investor communications reference financial performance metrics such as net profit growth and fleet utilisation, indicating an active capital-markets presence. The company has demonstrated resilience and adaptability through industry cycles, including the downturn in the oil and gas industry, and reports having emerged with a strong balance sheet, a more efficient fleet, and a supportive shore team.

Wintermar Offshore Marine traces its origins to what its official website describes as "once a humble tug and barge operator." Over more than five decades, the company evolved into a leading regional player in the Offshore Support Vessel (OSV) industry. According to its About page, Wintermar has expanded its operations to more than 13 countries over the years and currently serves a wide range of multinational clients. The company's history is framed around resilience and adaptability. Wintermar states that throughout its journey of more than 50 years, it has consistently gained a deeper understanding of the changes impacting the offshore business and has adapted by aligning its services in response to those changes. The company reports that it bounced back from the downturn in the oil and gas industry in recent years with a strong balance sheet, a more efficient fleet, and a supportive shore team. Wintermar's fleet development has moved toward more specialised and higher-tier vessels. Its website describes a fleet of Platform Supply Vessels (PSVs), Anchor Handling Tug Supply (AHTS) vessels, and other specialised working ships. Services have expanded to include vessel chartering, ship management, crew management, rig move and anchor handling, crew transport and rig supply, pipe tailing support, air diving and ROV support, fire fighting and emergency rescue, and harbour towage. The company notes that its vessels fitted with DP2 capability and anchor handling technology can support offshore subsea construction, and that its fleet includes vessels certified to FIFI and ERRV standards. As a publicly listed Indonesian company, Wintermar maintains an active investor relations programme. Its website provides annual reports, sustainability reports, investor updates, and AGM materials. Recent investor communications reference financial performance and fleet metrics, including a reported 24.4% year-on-year growth in attributable net profit to US$8.4 million for the first half of 2026, with fleet utilisation at 62% compared to 56% in the first half of 2025. The company also references acquisitions in its investor newsletters. Wintermar positions itself as operating to international standards and serving multinational clients, with a vision to be a leader in offshore marine services operating to high standards of excellence and integrity. Its stated mission emphasises high quality reliable marine support services, innovative solutions, safety, professional conduct, operational efficiency, and long-term sustainability benefiting all stakeholders.

• Wintermar begins as a tug and barge operator before evolving into the offshore support vessel industry.

• Over more than five decades, Wintermar expands operations to more than 13 countries.

• Wintermar reports recovery from the oil and gas industry downturn with a strong balance sheet and more efficient fleet.

• Wintermar reports 24.4% YOY growth in attributable net profit to US$8.4 million for 1H2026, with fleet utilisation at 62%.

• WINS Newsletter #116 references an acquisition of control.

Regional leader in offshore support vessels, operating to international standards with a focus on safety, integrity, and long-term sustainability.

• Platform Supply Vessels (PSVs)

  Vessels capable of supporting rigs in various water depths by transporting equipment, chemicals, personnel and other needs.

• Anchor Handling Tug Supply (AHTS) vessels

  Vessels with technology and expertise required to handle both short-distance and long-distance tows and anchor handling solutions.

• Fast Utility Vessels

  Vessels used for fast and safe transport of offshore personnel to and from shore-base and offshore rigs.

• DP2 Vessels

  Vessels fitted with DP2 capability and anchor handling technology to support offshore subsea construction, air diving and ROV operations.

• FIFI and ERRV certified vessels

  Vessels equipped with advanced firefighting capabilities and prepared to respond to emergency situations.

• Harbour tugs

  Vessels supporting berthing and unberthing of ocean going vessels calling at port, fitted with Azimuth Stern Drive.

1. 1Wintermar Official Websitewintermar.com
2. 2Wintermar Aboutwintermar.com
3. 3Wintermar Serviceswintermar.com
4. 4Wikidata - Wintermar Offshore Marinewikidata.org
5. 5Serviceswintermar.com