PT. Semesta Energi Teknik was founded by a group of engineers and professionals with deep expertise in mechanical, electrical, and plumbing (MEP) systems. Recognizing the growing demand for high-quality and integrated engineering solutions in Indonesia, the company was established with the mission to deliver not just technical installations, but reliable systems that empower long-term operational efficiency.

In its early years, PT. STEK focused on small-to-medium-scale mechanical and electrical installation projects for residential and commercial clients. The team’s reputation for precision, safety, and responsive service quickly gained attention, opening the door to larger projects and partnerships across various sectors—from manufacturing to institutional facilities.

As environmental concerns and sustainability became global priorities, PT. STEK expanded its services by integrating clean water treatment and wastewater management solutions. This diversification allowed the company to serve industrial plants, hospitals, and other facilities requiring highly specialized treatment systems, such as reverse osmosis (RO), ultrafiltration, demineralization, and sludge-free wastewater treatment technologies.

Through innovation and consistent quality, PT. STEK has now grown into a trusted partner with a portfolio of over 100 completed projects. The company continuously evolves, adopting modern engineering approaches and prioritizing sustainable practices in every solution it delivers.

With a strong foundation in technical knowledge, a culture of continuous improvement, and a customer-focused mindset, PT. Semesta Energi Teknik remains committed to supporting Indonesia’s infrastructure growth—one reliable system at a time.