Top 20 C# Developers in Portland

Founded in 2009, Unosquare, LLC is headquartered in Lake Oswego, Ore. with other locations in Guadalajara, Mexico, and Belfast, U.K. With more than 600 employees, they provide software testing and development services, combined with their staff augmentation services to meet software engineering needs, using nearshore development professionals.

Located in Portland, Ore., AltSource Software is a technology consultancy and development house with a team of over 150. Since 2004, they've specialized in custom software development as well as enterprise app modernization, working primarily with midmarket businesses and enterprises.

Founded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.

Buildable Custom Software is a software development firm founded in 2008. Located in McMinnville, Ore., their team of 9 employees specialize in custom software development, UX/UI design, and web design. They work with small and midmarket businesses within the transportation, education, and health care industries.
 

Founded in 2010, Darwoft is a development firm. Their team of around 85 employees is based in Houston, with an additional office in Córdoba, Argentina. They focus on custom software, web, and mobile app development.

Based in Beaverton, OR, Sembit is a full-service digital agency that specializes in web development, custom software development, e-commerce development, and mobile app development. Founded in 2009, Sembit has about 12 members on staff. 

Metal Toad is an AWS consulting partner based in Beverly Hills, Calif., with offices in Portland, Ore. and Pasadena, Calif. The company, founded in 2003, has more than 25 employees who provide, among others, cloud consulting & SI, IT managed services, and custom software development services to the media & entertainment, manufacturing, and automotive industries.

Steelhead Software is a UX company. Their small team is in Salem, Oregon and focuses on ux/ui design, custom software development, mobile app development, e-commerce development, and more. The company was launched in 2021.

Surge Software is a software development agency headquartered in Bellevue, WA, with other offices in Sacramento, CA, Baltimore, MD, and Salt Lake City, UT. The agency of 160+ employees provides custom software development, web development, mobile app development, and e-commerce development services.

Online Business Systems is an IT strategy consulting company located in Winnipeg, Canada and Bloomington, Minnesota. The midsize team specializes in IT strategy consulting and business consulting. The firm was established in 1986.

Kinetic Technology Solutions, a software development firm, is headquartered in Portland, Oregon. Launched in 1987, the small team provides custom software development, cloud consulting & SI, corporate training, and web development.

Salvo Software is a software development company founded in 2018. The company provides custom software development, application management & support, ux/ui design, blockchain, and more and has a small team.

Website development company Renet Consulting, Inc. Was established in 1998. In Beaverton, Oregon and Portland, Oregon, their small team offers web development, mobile app development, custom software development, accounting, and more.

Nexxt Ideas is a Calgary, Canada-based AI development company. Founded in 2024, the small team focuses on Artificial Intelligence, mobile app development, custom software development, web design, and more.

Web development company Geoflypages was launched in 2017. The company provides web development, custom software development, e-commerce development, mobile app development, and more and has a midsize team. The company is based in Beaverton, Oregon.