The ultimate convenience of on-the-go mobile device charging with chargeFUZE.

Overview

ChargeFUZE is a fast-growing, global startup building the largest mobile charging network in the U.S. and expanding internationally. The company runs a hybrid B2C/B2B model, enabling rentals for end users and platform access for partners (venues, retailers, etc.).

As they scaled, ChargeFUZE hit critical engineering bottlenecks across their rental flow, station software, and monetization stack. They brought in Spartan to stabilize core systems, accelerate ad platform rollout, and increase operational reliability.

Why Spartan?

  • Cross-Stack Execution: Android + backend + frontend delivery across fragmented systems.
  • Startup-Grade Speed: Compact team shipped more in weeks than prior vendors did in quarters.
  • Business-Aligned Engineering: Prioritized fixes and features tied to revenue, churn, and GTM ops.
  • Embedded Collaboration: Integrated directly with PM and internal engineers, async + fast loop.
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