🏆 Top 10 MarTech Development Agencies
Ranked by rating, verified review count, and track record. Updated for 2026.
| # | Agency | Rating | Team Size | |
|---|---|---|---|---|
| 1 | OpenXcell | — | 51–200 people | View |
| 2 | Avenga AI | — | 200+ people | View |
| 3 | Avenga Staff | — | 200+ people | View |
| 4 | Sfera Interactive | — | — | View |
| 5 | G&CO. | — | — | View |
| 6 | WebFX | — | — | View |
| 7 | iKala | — | — | View |
| 8 | Avenga | — | — | View |
| 9 | Avenga | — | — | View |
| 10 | Avenga | — | — | View |
OpenXcell ✓ Verified
Mobile and web development company with expertise in React Native and Flutter development.
Avenga AI ✓ Verified
Technology services company with dedicated AI and machine learning engineering practice.
Avenga Staff ✓ Verified
Technology services staff augmentation practice within Avenga Group.
Sfera Interactive
Digital solutions consultancy focused on full-stack MarTech development and implementation.
G&CO.
Global MarTech consulting firm helping enterprise brands build scalable martech ecosystems.
WebFX
Marketing technology company offering an in-house, all-in-one martech platform.
iKala
AI transformation solutions provider founded 2011, delivering AI-driven cloud management, MarTech, and data science solutions to over 1,000 enterprises worldwide.
Avenga
Global IT engineering and consulting platform headquartered in Cologne, Germany, formed in 2019 through mergers of IT Kontrakt, Solidbrain, Corevalue, and Sevenval, providing custom software development, MarTech development, digital transformation, and enterprise solutions across automotive, pharmac
Avenga
Global IT engineering and consulting platform headquartered in Cologne, Germany, formed in 2019 through mergers of IT Kontrakt, Solidbrain, Corevalue, and Sevenval, providing custom software development, MarTech development, digital transformation, and enterprise solutions across automotive, pharmac
Avenga
Global IT engineering and consulting platform headquartered in Cologne, Germany, formed in 2019 through mergers of IT Kontrakt, Solidbrain, Corevalue, and Sevenval, providing custom software development, MarTech development, digital transformation, and enterprise solutions across automotive, pharmac
Want proposals from multiple agencies?
Send one brief — agencies compete for your project. Free.