School bus startup Zum hits $333M in revenue, eyes IPO
What's the deal? Zum, a US startup that provides bus routing and transit technology to school districts, reported $333 million in revenue for 2025 — up 35% year on year.
The company, last valued at $1.3 billion in a 2024 financing round, has raised more than $300 million in equity to date from backers including Sequoia Capital, SoftBankDealroom has a profile for this one. Try Dealroom →, and Singapore's GIC. It has booked more than $2 billion in contract revenue over the next five years.
Why now? School transportation in the US remains largely antiquated, and Zum is betting that districts are ready to modernise. Its five- to ten-year contracts with districts across Los Angeles, San Francisco, Kansas City, and others provide a stable revenue base as it scales.
The company is also riding the electric vehicle wave — it helped Oakland Unified School District become the first US school district to operate an all-electric bus fleet.
What could go wrong? Zum is pricier than traditional providers, which could slow adoption among cost-conscious school districts operating on tight budgets. Long contract cycles also mean growth is steady but slow, and any operational failures — late buses, driver shortages — carry reputational risk in a sector where parents and administrators are quick to complain.
An IPO is on the horizon, but timing remains unspecified, leaving investors without a clear exit path.
The signal: Zum's growth points to a broader opportunity in modernising public infrastructure through technology. School transportation is a $30 billion-plus market in the US that has seen little innovation — making it fertile ground for a tech-enabled operator willing to take on the complexity.
The electric fleet angle adds another dimension: as districts face pressure to cut emissions, companies that can bundle routing software with EV infrastructure stand to win long-term contracts at scale.
Sources:
Zum
PR Newswire
Bloomberg
Morningstar
Image credit:
Zum
J.V.
