Fundraising Fox

Booster

11 known investors

Booster provides on-site fuel delivery to vehicle fleets, refueling vehicles during off-hours to avoid off-route trips to gas stations. It targets businesses managing fleets seeking to reduce fuel-related costs and operational delays.

Also known as Booster Fuel · Booster Fuels

Investors · 11

Also in the syndicate · 5

Enterprise Holding VenturesInvus OpportunitiesMitsubishi CorporationPerot Jain LPRenewable Energy Group

Company profile

researched Aug 2026

Booster operates an on-demand mobile fueling service that delivers gasoline, diesel, renewable diesel and other fuels directly to customers' vehicles, on-site fuel cubes or equipment, removing the need for drivers to make off-route trips to gas stations. Deliveries are made from company-operated tankers (marketed as "Smart Tankers") that source fuel from the terminal, which the company describes as eliminating jobbers, fixed fuel storage tanks and gas stations from the supply chain. Service is offered around the clock, typically during customers' off-hours, and is sold both to large enterprise fleets and to local businesses.

Alongside the physical delivery operation, Booster provides a software layer: a Fleet Portal and customer insights dashboard, integrations with telematics, fleet management and fuel card systems, and analytics the company says help customers track spending, detect fuel card fraud and skimming, and measure and report carbon reduction for ESG purposes. The company positions itself as an energy-transition partner, offering a mix of conventional, renewable and alternative fuels, and piloted on-demand EV charging in 2021. Booster states it complies with DOT, EPA and air-quality rules and with NFPA 30A, FMCSA and the International Fire Code, and it runs an internal CDL Academy that provides fully paid commercial driver training to its service professionals.

Founding story

Founded in late 2014 by Frank Mycroft, Booster started as an app-based service that delivered fuel to a customer's car while it was parked at work, buying fuel wholesale and charging market rate per gallon, with the aim of changing how people spend time on refueling.

Business model

Booster sells fuel and delivery as a service to fleet operators and small businesses. According to an employer profile, the company buys fuel wholesale and charges a market rate per gallon; its website markets competitively priced fuel delivered on site, sold through per-delivery service to enterprise fleets, local businesses and on-site fuel cubes or equipment.

Revenue comes from fuel sold and delivered to customers, with the company purchasing fuel wholesale at the terminal and charging customers a market rate per gallon plus its delivery service.

Traction

Booster reported growing first-quarter 2022 revenue by more than 125% year over year and said it had overhauled fuel supply for large e-commerce, technology and transportation fleets including Amazon, Imperfect Foods and UPS, with some running on fuel derived from recycled used cooking oil. It also reported delivering 100% renewable diesel to thousands of fleet vehicles across California.

Latest developments

The company's website states that it has been operating for about ten years and emphasizes converting customers from paper-based fuel administration to an AI-driven, paperless platform, along with expanded fuel options spanning gasoline, diesel and renewable diesel for mixed fleets.

Full profile — market position, technology, go-to-market, geography, history

Market position

Booster describes itself as a leading mobile energy delivery platform and says it has worked with some of the largest commercial fleets in the US. As of May 2022 it reported delivering 100% renewable diesel to thousands of fleet vehicles in California and grew first-quarter 2022 revenue more than 125% year over year.

The company differentiates on delivering fuel directly from the terminal to the vehicle without intermediaries, fixed infrastructure or gas station visits; on a technology stack combining cloud-connected IoT mini-tankers, an AI-driven paperless platform, telematics and fuel card integrations, and carbon-reporting analytics; on multi-fuel and renewable options that let fleets transition gradually; and on safety and driver-training programs including its CDL Academy and "Perfect Boost" no-spill commitment.

Technology

Booster uses proprietary cloud-connected IoT mini-tankers, described as Smart Tankers with safety features, together with a digital platform comprising a customer-facing Fleet Portal and insights dashboard, an ordering app, AI-powered analytics, and integrations with telematics, fleet management and fuel card systems that give customers real-time visibility into fueling activity and emissions.

Go-to-market

Booster sells directly to fleets through a sales team, offering free fuel and energy optimization analyses of prospects' fuel statements, consultations and quote requests via its website and phone/email sales channels, with separate offerings positioned for enterprise fleets and local businesses. It also engages in advocacy, working with Paralyzed Veterans of America and the United Spinal Association through the Californians for Smart Fueling coalition to promote full-service delivery for drivers with disabilities.

Commercial and enterprise fleets, including some of the largest e-commerce, technology and transportation fleets in the US, as well as public sector customers, startups and local small businesses operating vehicles or on-site fuel tanks. Named customers include Amazon, Imperfect Foods and UPS.

Geography

Booster operates in the United States, with headquarters reported in San Mateo, California, and an earlier listed address in Burlingame, California; it has delivered renewable diesel to fleets across California and has supported regions experiencing fuel shortages and disaster relief efforts including hurricanes, floods and wildfires.

History

The company was founded in late 2014 and launched its service in 2015, initially delivering fuel to consumers' cars at their workplaces via an app. Its CEO and founder is Frank Mycroft, who in 2022 described the company as founded seven years earlier and focused on reinventing the transportation fuel supply chain. Over time Booster expanded to enterprise fleet and local business customers, added renewable diesel and alternative fuels, piloted on-demand EV charging in 2021, and raised a Series D of more than $125 million in May 2022. It was named one of Forbes' Best Startup Employers in 2022.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Employee count (range, employer profile)Jan 202410 - 50
Q1 revenue growth, year-over-yearMar 2022125%
Share of CDL drivers identifying as womenJan 202416%

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

2 people who came through Booster went on to found or lead other companies.

Timeline · 4

launches, deals, and filings
May 2022
Booster raises more than $125M in Series D funding

Booster announced a Series D round of more than $125 million led by Rose Park Advisors, with new investors Chaac Ventures, Equinor Ventures, Mitsubishi Corporation and Thayer Ventures; Renewable Energy Group increased its strategic investment, and existing investors including Cercano Management, Conversion Capital, Enterprise Holding Ventures, Invus Opportunities, Madrona Venture Group, Maveron, Perot Jain LP and Version One Ventures participated. Proceeds were earmarked for expanding its direct-to-vehicle delivery network across conventional, renewable and alternative fuels.

$125M source ↗

May 2022
Strategic partnership with Renewable Energy Group

Booster described a strategic partnership with renewable fuels producer Renewable Energy Group (REG) providing energy-agnostic access to a supply chain of fuel options; REG is also a strategic investor.

source ↗

Jan 2022
Named one of Forbes' Best Startup Employers

Booster was named to Forbes' Best Startup Employers list in 2022, cited for reputation, employee satisfaction and growth.

source ↗

Jan 2021
On-demand EV charging pilot

Booster ran a pilot of on-demand electric vehicle charging in 2021 and said it was building on those capabilities to meet increased EV demand.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Booster do?
Booster is a mobile fuel delivery company that refuels commercial fleets on site with gasoline, diesel and renewable fuels.
Who are Booster's investors?
Booster's investors include Conversion Capital, Expansion Venture Capital, Chaac Ventures, Equinor Ventures, Rose Park Advisors, Thayer Ventures.