Top 100 Web Development Companies in Boulder

Flatirons Development is a UX/UI product design and software development consultancy, founded in 2018. They employ seven staff in their office in Boulder, Colo., where they focus primarily on product management and strategy, UI and UX design, web development, and native mobile app development. They work with a range of small, midmarket and global companies.

Gorilla Logic provides nearshore Agile teams to Fortune 500 and SMB companies, bringing unparalleled expertise in the delivery of full-stack web, mobile, and enterprise applications. Founded in 2002 and headquartered in Broomfield, Colo., they have over 500 employees and development centers in San José, Costa Rica and Medellín, Colombia. 
 

Merge Studio is a web design agency established in 2016. The small team focuses on web design, branding, digital strategy, social media marketing, and more. The company is based in Boulder, Colorado.

Relish is a web design and development agency based in Denver, Colorado, that was founded in 2008. Their small team offers web design, SEO, web development, logo, and branding services.

Development agency SemiDot Infotech was founded in 2010. Headquartered in Boulder, Colo., their team includes 42 specialists.  SemiDot offers web development, mobile app development, and blockchain services. Their client base is primarily composed of small businesses. SemiDot Infotech has additional offices in Manchester, UK, Melbourne, Australia, and Jaipur, India. 

Digital agency Viget has a team of more than 70 employees, spread across 3 offices in the U.S. – Falls Church, Va., Durham, N.C., and Boulder, Colo. Founded in 1999, Viget provides web development, digital strategy, and web, UI/UX, and print design services business clients of all sizes and across industries.

AnatomizeTech is a user experience design company. They are based in Miami Beach, Florida and have a small team. Their services include ux/ui design, web development, mobile app development, branding, and more. The agency was founded in 2021.

Emerson Stone is a product-focused design agency based in Boulder, Colo. Founded in 2014, they comprise nine employees specializing in business strategy and branding, production design, VR, UX, and website design and development. They work with a range of tech startups and national brands from around the world.

codelab303 is a digital special forces team based in Boulder, Colo. with more than two experts. Since 2018, they have offered custom software and web development as well as UX/UI design services for clients in the industries of advertising, retail, and e-commerce.

Buink Web Development is a web development firm based in Lafayette, Colo. Founded in 2009, their team of 6 serves clients in the design and retail sectors. Services include mobile app development and web design.

Colorado SEO Design is a marketing firm founded in 2009 and based in Longmont, Colo. With more than two employees, they offer web development, PPC, and SEO services to both small and medium-sized businesses.

Web design company R2Consulting was established in 2016. The company specializes in web design, ux/ui design, cloud consulting & SI, IT managed services, and more and has a small team.

Techtonic is a software development company in Boulder, Colo. Founded in 2006, they have about 88 employees that serve clients in a wide variety of sectors. Services include web development, custom software development, and application testing.

Located in Chicago, IL with a second office near Denver, CO Angle180 is a web design and marketing solutions firm. Founded in 2013, the team of 8 is committed to adding value for its clients at every step of the process, from planning to maintenance. They offer a large slate of services primarily to smaller manufacturing or construction companies: UI/UX design, graphic design, front- and back-end development, e-commerce, extensions/API's, CMS development, and SEO.

Tonic, a enterprise app modernization company, is headquartered in Denver, Colorado. The small agency was launched in 2015. Their services include enterprise app modernization, ux/ui design, web development, and mobile app development.

InspiringApps is a mobile app development company. Their small team is based in Boulder, Colorado and Austin, Texas. The company offers mobile app development, web development, custom software development, and IoT development. The company was established in 2007.

Dept is a web development firm that was founded in 2016. They have a team of over 1,300 employees, spread out over four offices in Boston, Amsterdam, Berlin, and Manchester, U.K. They offer web development, UX/UI design, and web design to midmarket and enterprise companies across the globe.
 

Elevated Third is a Denver-based Drupal web development agency. Founded in 2005, Elevated Third has a team of about 30 that works with organizations ranging from small nonprofits to large Fortune 500 companies. They also assist with web design, digital strategy, and UI/UX design.

With headquarters in Denver and offices all over the country, NEWMEDIA specializes in creative and innovative web design and development and SEO. The agency and its nearly 200 employees have created 3500+ websites and applications since they were founded in 1996.

Never Settle is a marketing and advertising agency that has been offering advertising, branding, and marketing strategy services to their small business, enterprise, and mid-market clients in the e-commerce, IT, and non-profit industries since 2012. Their 50 employees are based out of their office in Golden, Colo.

Aten Design Group is a Denver-based website designer that was founded in 2000. Its 30 employees help clients in the non-profit and education industries with web design and development and digital strategy.

Founded in 2003, Fruition is a full-service digital marketing agency based in Denver, Colo. The team of about 40 primarily offers web design and development, as well as UX/UI design, social media marketing, and digital strategy. Most of Fruition's clients are midmarket businesses, though some are small businesses.

ZeroToOneAspire is a small web development firm. They specialize in web development, IT strategy consulting, e-commerce development, and IoT development and were launched in 2017. The firm is in Westminster, Colorado and Ahmedabad, India.

Simplified Website Design is a web design company in Boulder, Colorado. The small team focuses on web design, web development, search engine optimization, and other digital marketing and was established in 2013.

9thWonder is a strategic marketing, media, and idea company founded in 2018. With headquarters in Houston and offices across the US, Argentina, and Vietnam, the team of about 140 employees offers media planning and buying, advertising, branding, PR, and market research services. Their enterprise, midmarket, and small business clients are in the IT, consumer products, and healthcare industries, amongst others.

Zenman is a Denver based web design and digital agency. They were founded in 1998 and have a team of 16 employees who specialize in content marketing, web design, and web development for clients in the media, real estate, and advertising industries.

Rogue Wave Software is a custom software development firm and website development company. The Louisville, Colorado-based agency was established in 1989. The midsize team focuses on custom software development and web development.

Website development firm Level7 is in Boulder, Colorado. The agency specializes in web development and is small.The agency was launched in 2019.

BlueModus is a technology agency based in Denver. The agency, founded in 2001, has more than 75 employees and provides web development, custom software development, e-commerce development, and IT strategy consulting services. BlueModus serves mid-market and enterprise companies in various industries that include business services, financial services, and medical. 

BLKDG is a Denver-based creative agency that specializes in web development, e-commerce development, and UI/UX design. Founded in 2010, BLKDG's has a small team of 6 employees.