Ports and hydrotechnical structures form critical infrastructure for navigation, cargo handling, shoreline protection, and water resource management. On the buvnieks.com platform, users can find companies and professionals specializing in port and marine infrastructure across Latvia. This category includes construction of port facilities such as quays, piers, and cargo terminals. Hydrotechnical structures like breakwaters, embankments, and coastal protection systems are widely available. Users can also find dredging works for waterways and port basins. The category covers construction of locks, culverts, and water regulation structures. Solutions are available for rivers, lakes, and coastal areas. The platform allows comparison of providers by experience, equipment, and completed projects. These services suit public, municipal, and industrial developments. Properly built hydrotechnical structures ensure safety and long-term durability. As a result, sustainable and reliable marine infrastructure is created.