How a Former eBay Executive Built a $1.7 Billion School Transport Company

From a Bay Area Carpool Problem to a School Bus Platform

Before Zum, Ritu Narayan was running a billion-dollar business unit at eBay in Silicon Valley and still could not solve a mundane logistics problem: getting her two young children to school and daycare in Bay Area traffic without costly, unreliable part-time help. In 2015, she co-founded Zum in Redwood City, California, with her brothers Vivek and Abhishek Garg to modernize student transport. Today the company says it has raised $430 million, reached a $1.7 billion valuation, generated $333 million in 2025 revenue—up 35% from 2024—and serves 5,000 schools across the country.

Zum does more than run an app. It leases bus yards, buys and maintains school buses and vans, employs drivers, and connects vehicles through tablets and GPS to a parent- and teacher-facing tracking app. Its dispatch software uses artificial intelligence to analyze existing bus routes and remove wasted time, mileage and cost. Narayan argues the result is faster and more efficient than the traditional yellow-bus model, even though Zum contracts can start out more expensive for districts.

The San Francisco Unified School District's five-year, $150 million contract with Zum in 2021 is the company's clearest published example: Zum says its route analysis cut the district's active bus count from 236 to 193, saving about $3.5 million a year. In Oakland, transportation director Kimberly Raney says the switch to Zum in 2024—under a five-year agreement worth $11.2 million annually—ended a paper-and-fax system in which parents had to fax pickup changes to the district and buses regularly ran 30 minutes late.

That pitch is aimed at a market in which the United States spends nearly $40 billion a year moving 26 million children to school, after-school activities and back home. Zum is now in 18 states, and Forbes placed Narayan on its 2026 50 Over 50 list; she says reaching all 50 is only a matter of time.

What Zum's Growth Reveals About the School Transportation Market

Zum's story is not just a startup profile; it shows why an essential public service remained analog for decades and what changes when a digital operator controls both fleet operations and route data.

The Economics Behind the San Francisco and Oakland Deals

Zum's own account of the San Francisco contract does the analytical work: the district did not add an expensive tech layer to a broken system, it replaced 43 buses—236 down to 193—and redirected $3.5 million a year. That is a concrete, district-level test of the company's claim that higher initial contract cost can be offset by fleet reduction. Oakland's case is different: the $11.2 million annual contract removed faxes, paper rosters, and repeated phone calls, but the main visible benefit there is operational reliability and information flow, not a published bus-count reduction. Both examples reinforce that Zum sells an operating system, not just software.

Why Sequoia and Ulu Ventures Saw a Protective Moat

Sequoia partner Bryan Schreier, who led Zum's Series A in 2017, argues the company is hard for Uber, Lyft or OpenAI to imitate because it combines physical school bus infrastructure, driver operations and AI routing under one roof. Ulu Ventures' Miriam Rivera, an early investor, points to the overlooked scale of the market and to long-term district contracts that give a startup five to ten years of visible revenue. Those contracts are the core investment case: they reduce revenue uncertainty in a business where winning one district can create demand in nearby districts, as Narayan describes from Kansas City to Omaha and St. Louis.

The $40 Billion Market Problem and the Limits of the Moat

The US spends nearly $40 billion a year on student transport, yet legacy systems left many families relying on parents, caregivers or public transit, and kept district operations on fax machines and paper rosters well into the 2020s. Zum's growth is evidence of how much slack there is in that system. At the same time, its moat is not absolute: existing school bus contractors already own district relationships and buses, and they can adopt similar routing software. Zum's advantage is that it has already redesigned the operation around the software, rather than bolting it onto a legacy fleet, but competitive pressure is likely to intensify as the market digitizes.

Where School Districts and Investors Go From Here

For school districts, investors, and legacy bus contractors, Zum's published contract results provide specific numbers to test rather than abstract claims.

• District transportation buyers: Request a bus-count reduction analysis in every bid. Zum's San Francisco contract reduced active buses from 236 to 193 and saved $3.5 million a year; use that as a benchmark, not a promise, and ask competitors to match the methodology.
• Districts still on fax and paper: Oakland's transition under an $11.2 million-a-year Zum contract replaced faxed pickup changes and manual rosters. Estimate your own dispatch staff hours and parent-communication volume before comparing only the per-bus price.
• Investors evaluating Zum: Track district cluster adoption as a leading indicator—Zum says winning Kansas City led nearby Omaha and St. Louis districts to inquire—alongside the reported 5,000 schools and 18-state footprint rather than treating a high-level contact count as equal to contracted revenue.
• Legacy bus contractors: Treat the San Francisco route audit as a threat that can be copied. If Zum's higher upfront price is offset by cutting 43 buses, a legacy operator that waits for a rebid without its own optimization plan risks losing long-term district contracts.
• Do not extrapolate the $3.5 million savings to every district: it comes from a specific San Francisco route analysis. Use it as proof that fleet reduction is measurable, but demand route-specific modeling for your own bus count, mileage and labor costs.