List Of All app development company Leads in St. Louis
Searching for app development company in St. Louis? Below are 20 businesses with the essentials — location, contact details, and customer ratings. IQComputing currently holds the top rating at 5.0★, while the average across the list sits around 4.9★. Details were last refreshed 9/1/2026, so you can browse with confidence and reach out directly to the ones that fit.
20 results · last updated 9/1/2026
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| Name | Phone | Links | Reviews | Category | |
|---|---|---|---|---|---|
| IQComputing2228 Mason Ln, Manchester, MO 63021, United States | +*6*6*9••••2 | — | 5.0(120 reviews) | Web Designer | |
| XTAPPS5377 State Rte N Ste 442, Cottleville, MO 63304, United States | +*6*6**••••4 | — | 5.0(64 reviews) | Web Designer | |
| DevPort Studio, LLC.devportstudio.com | +******••••7 | he***••••*.comRegister to View | 5.0(28 reviews) | Marketing agency | |
| Alambda Systems911 Washington Ave Ste 838, St. Louis, MO 63101, United States | +*8****••••2 | — | 5.0(25 reviews) | Software company | |
| Matchbox Design Group1501 Locust St Unit A, St. Louis, MO 63103, United States | +****8*••••9 | in**••••*.comRegister to View | 5.0(20 reviews) | Web Designer | |
| UnidevTwo Cityplace Dr Suite 245, St. Louis, MO 63141, United States | +*6*6**••••4 | — | 5.0(16 reviews) | Software company | |
| Lelander6 Cardinal Wy 9th Floor, St. Louis, MO 63102, United States | +****9*••••9 | in**••••*.comRegister to View | 5.0(12 reviews) | Software company | |
| Digital Radium - Mobile App Development | Web Development | E-Commerce12645 Olive Blvd, St. Louis, MO 63141, United States | +****9*••••8 | in**••••*.comRegister to View | 5.0(11 reviews) | Software company | |
| Codeplateau Technology Solutions LLCcodeplateau.com | +******••••1 | %2****••••*.comRegister to View | 5.0(6 reviews) | Software company | |
| Bluestone Apps9812 Medford Dr, St. Louis, MO 63136, United States | +****9*••••2 | — | 5.0(5 reviews) | Software company | |
| Ukon Labsukonlabs.com | +****9*••••6 | lo**••••*.comRegister to View | 5.0(5 reviews) | Web Designer | |
| PC40 Interactive6590 Scanlan Ave, St. Louis, MO 63139, United States | +****78••••0 | in**••••*.comRegister to View | 5.0(4 reviews) | Software company | |
| Zimble Code - Best Web & Mobile App Development CompanyUnion St, Manchester M3 3HP | ****8*7••••0 | — | 5.0(1 reviews) | Software company | |
| NetGain Technologies, LLC4625 Lindell Blvd Suite 200 and 300, St. Louis, MO 63108, United States | +****86••••6 | sm***••••*.comRegister to View | 4.9(14 reviews) | IT support and services | |
| Hexxen2315 Locust St #14, St. Louis, MO 63103, United States | +*****9••••3 | gr**••••*.comRegister to View | 4.8(40 reviews) | Web Designer | |
| Integrity Web Consulting6358 Delmar Blvd Apt 444, St. Louis, MO 63130, United States | +****7*••••0 | — | 4.8(25 reviews) | Web Designer | |
| Altec Design2323 Locust St Unit 308, St. Louis, MO 63103, United States | +*****7••••3 | sa***••••*.comRegister to View | 4.8(24 reviews) | Web Designer | |
| Beanstalk Web Solutions54 Moody Ave, St. Louis, MO 63119, United States | +****7*••••0 | in**••••*.comRegister to View | 4.7(35 reviews) | Web Designer | |
| DELT2400 S Jefferson Ave #201, St. Louis, MO 63104, United States | +******••••8 | — | 4.7(13 reviews) | Web Designer | |
| INDi IT Solutions - Mobile App Development St. Louis3407 S Jefferson Ave #111, St. Louis, MO 63118, United States | +*9**68••••7 | — | — | Software company |