South Lake Union #1

Lake Union Park is a 12-acre (4.9 ha) park located at the south end of Lake Union in Seattle, Washington in the South Lake Union neighborhood. The park is owned by the City of Seattle and operated by Seattle Parks and Recreation. The park property was gradually acquired by the City, and the final 5 acres (2.0 ha) were transferred from the United States Navy to the City of Seattle on July 1, 2000.

The Museum of History & Industry (MOHAI) is a history museum in the South Lake Union neighborhood of Seattle, Washington. MOHAI is the largest private heritage organization in Washington state, maintaining a collection of nearly 4 million artifacts, photographs, and archival materials that primarily focus on Seattle and the greater Puget Sound region.

Lotus is a motor yacht, launched in 1909 in Seattle, Washington. Lotus was employed as a pleasure vessel on Puget Sound, and in the waters of British Columbia and southeastern Alaska. Lotus was of a unique design and is now on the National Register of Historic Places.

The Howard S. Wright Companies provide pre-construction services, construction, construction management, and design-build services for a wide range of project types and industries, primarily within the ten western states of the United States. In 2008, the group was listed in the Top 100 Contractors by Engineering News-Record Magazine (ENR).

Arthur Foss, built in 1889 as Wallowa at Portland, Oregon, is likely the oldest wooden tugboat afloat in the world. Its 79-year commercial service life began with towing sailing ships over the Columbia River bar, and ended with hauling bundled log rafts on the Strait of Juan de Fuca in 1968. Northwest Seaport now preserves the tug as a museum ship in Seattle, Washington.

Duwamish was one of the most powerful fireboats in the United States several times over her 75-year working life. She is the second oldest vessel designed to fight fires in the US, after Edward M. Cotter, in Buffalo, New York.

Center for Infectious Disease Research, formerly known as Seattle BioMed, Seattle Biomedical Research Institute or SBRI, was the largest independent, non-profit organization in the United States focused solely on infectious disease discovery research. Since Oct. 2018, the Center for Infectious Disease Research has been part of the Seattle Children's Research Institute and known as the Center for Global Infectious Disease Research.

Weber Thompson is an architecture firm based in Seattle, Washington. The firm, which comprises over 70 architects, and primarily works with high-rise buildings, interior design, and landscape architecture. Weber Thompson also specializes in commercial office, affordable housing and sustainable design, with 17 projects earning LEED certification.

The Terry Thomas Building, located in the South Lake Union neighborhood of Seattle, Washington is a sustainable, LEED-certified office building completed in 2008. The Terry Thomas is Seattle's first commercial office building structure developed in decades without central air conditioning. It was designed by Seattle-based architectural firm Weber Thompson, who also designed the interiors of the building and use it as their headquarters.

The Naval Reserve Armory in the South Lake Union neighborhood of Seattle, Washington "is a massive concrete building exhibiting restrained Moderne and Art Deco features". It was built by the Works Progress Administration in 1941–1942, and "served as an Advanced Naval Training School" during World War II.