Top 10 E-Commerce App Development Companies in St. Louis
The Best of December 2025Looking for a top e-commerce app development company in St. Louis?
E-commerce apps allow you to sell products to buyers online through a mobile app. Apps like Wayfair, Amazon, or Glasses by Warby Parker are examples of e-commerce mobile apps with unique features to optimize the buying experience for shoppers. Get started updating, customizing, or building a new e-commerce app with the help of a top e-commerce app development company.
To assist you in your search for a partner, we’ve compiled this list of the top app developers for e-commerce apps in St. Louis. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best St. Louis E-Commerce Mobile App Developers
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1$5,000+50 - 249 employeesSt. Louis, MOWeb design agency UPQODE was launched in 2015. They are based in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington and have a midsize team. UPQODE focuses on Web Design, Web Development, UX/UI Design, Custom Software Development, and more.Read More
Clients
Gracenote - Entertainment ProvidersIndustries
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2$5,000+2 - 9 employeesSt. Louis, MORead More
Digital Radium is a high-end software development company founded in 2020 in St. Louis, Missouri. With about 3 employees on board, they offer web development, mobile app development, and e-commerce development to small and medium-sized businesses across several industries, the main ones being business services, manufacturing, and financial.
Clients
STL PolyjackIndustries
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3$1,000+2 - 9 employeesSt. Louis, MORead More
PC40 Interactive is a St. Louis, Missouri-based e-commerce development company. The small team focuses on e-commerce development, web development, custom software development, mobile app development, and more and was established in 2006.
Industries
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4$5,000+250 - 999 employeesSt. Louis, MOGemini Consulting & Services is a mobile application development firm. They were established in 2010 and specialize in Mobile App Development and Web Development.Read More
Clients
Weil Cornell Medicine -
5$5,000+10 - 49 employeesSt. Louis, MOMechcubei Solutions is a St. Louis, Missouri-based mobile application development firm. Their services include Mobile App Development and UX/UI Design.Read More
Industries
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6$5,000+2 - 9 employeesSt. Louis, MOVIVIDSITES is a web design agency. The St. Louis, Missouri-based agency was launched in 1999. The small team offers Web Design, Web Development, E-Commerce Development, UX/UI Design, and more.Read More
Clients
ReebokIndustries
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7$5,000+2 - 9 employeesSt. Louis, MOSoftware development company DEKAMCO was founded in 2019. The firm offers Custom Software Development and Mobile App Development, and is small.Read More
Industries
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8Undisclosed50 - 249 employeesChesterfield, MOTDK Technologies, a midsize web design agency, is headquartered in Chesterfield, Missouri. Their services include Web Design and UX/UI Design.Read More
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9Undisclosed2 - 9 employeesTown and Country, MOBecurity is a mobile application development company. The Town and Country, Missouri-based firm focuses on Mobile App Development and Web Development.Read More
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10Undisclosed2 - 9 employeesBrentwood, MOSmall branding agency Helicx, is headquartered in Brentwood, Missouri. The team provides Branding and Web Design.Read More
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