Proterra
Proterra designs and manufactures heavy-duty lithium-ion battery systems (Onyx Slate and Onyx Strata platforms) for commercial vehicle and industrial equipment OEMs, serving heavy-duty trucks, transit, construction, and port equipment markets primarily across North America as an independent unit within Volvo Group.
- Company typePrivate
- Founded2004
- HeadquartersBurlingame, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Proterra does
Proterra designs and manufactures heavy-duty lithium-ion battery systems for commercial vehicles and industrial equipment, organized around its Onyx modular battery platform with two product lines: Onyx Slate, a flat configuration for larger commercial vehicles (82-123 kWh models), and Onyx Strata, a compact configuration (up to 125 kWh) engineered for space-constrained applications such as Class 8 trucks and off-highway equipment. The platform integrates proprietary Battery Management System firmware, active liquid thermal management, Passive Propagation Resistance cell isolation, and a serviceable ancillary bay design, with stated energy densities reaching 300 Wh/L volumetric and over 178 Wh/kg gravimetric, and a track record of 50M+ service miles across 2,000+ deployed commercial vehicles. Proterra holds ISO 9001, ISO 14001, UN38.3, ECE R100.03, and SAE J2929 certifications and operates a purpose-built battery manufacturing facility in Greer, South Carolina, supporting Buy America and Build America, Buy America compliance for federally funded deployments.
Proterra generates revenue primarily through hardware sales of battery packs to OEM manufacturers of commercial vehicles and equipment, with secondary revenue from aftermarket replacement packs, service parts, diagnostics, and in-person technical training. The company goes to market exclusively through OEM embedding, co-developing battery integration with truck manufacturers (Volvo Trucks, Mack Trucks), construction equipment makers (Komatsu), and port and industrial equipment OEMs (Taylor Machine Works). Distribution is North America-focused with engineering and corporate functions in Burlingame, California and battery manufacturing in Greer, South Carolina. Following a 2023 Chapter 11 filing, Volvo Group acquired Proterra's battery business for approximately USD 210 million in February 2024; the company now operates as an independent unit within Volvo Group, continuing to serve external OEM customers while also supplying Volvo's own heavy-duty electric vehicle programs including the next-generation Volvo VNL Electric and Mack Pioneer battery-electric truck.
Proterra firmographics
Firmographics- Name
- Proterra
- Legal name
- Proterra Inc.
- Website
- https://proterra.com
- Company type
- Private
- Founded year
- 2004
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Proterra designs and manufactures heavy-duty lithium-ion battery systems (Onyx Slate and Onyx Strata platforms) for commercial vehicle and industrial equipment OEMs, serving heavy-duty trucks, transit, construction, and port equipment markets primarily across North America as an independent unit within Volvo Group.
- Ownership category
- akta.pro rank
Proterra industry classification
Industry- Product category
- Commercial Vehicle Battery Systems
- NAICS
- Battery Manufacturing (33591), Battery Manufacturing (335910)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Battery Pack & Module Manufacturing (EV) (IMACACAA)
- akta.pro secondary industries
- Truck & Commercial Vehicle Electrification Manufacturing (eAxles/Battery Packs/Fuel Cells) (IMACABAK), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Battery Pack Manufacturing & Module Assembly (EUAFABAI)
Keywords
Where Proterra is headquartered
LocationHeadquarters
- HQ city
- Burlingame
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Proterra business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales
Revenue model
- Battery Pack Sales: Proterra generates revenue through direct sales of battery packs and systems to OEM manufacturers of commercial vehicles and equipment. The company designs, manufactures, and sells integrated battery solutions including the Onyx Slate and Onyx Strata platforms with varying energy capacities (82-147 kWh range). Revenue includes aftermarket battery packs, replacement units, and service parts for existing Proterra-powered vehicles.
- Aftermarket Parts & Service: Proterra supplies aftermarket battery packs and service parts for Proterra-powered vehicles and equipment. Services include diagnostics, troubleshooting, repair services, and technical training for OEM partners and fleet operators. Warranty support is provided through vehicle OEMs or directly for direct purchasers.
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Proterra product offering
Product offeringCore offering
Proterra designs, manufactures, and sells purpose-built lithium-ion battery systems for medium- and heavy-duty commercial vehicles and equipment under the Onyx Slate and Onyx Strata modular platforms, with capacities ranging from approximately 40 kWh to over 200 kWh. The company partners with vehicle OEMs from concept through validation, launch, and aftermarket support, while also supplying replacement battery packs, service parts, diagnostics, and technician training for existing Proterra-powered fleets.
Product overview
Proterra is a U.S.-based heavy-duty electric vehicle battery manufacturer offering the Onyx modular battery platform with two product lines: Onyx Slate (flat configuration for larger vehicles) and Onyx Strata (compact configuration for tight spaces). The platform serves commercial transit, school buses, heavy-duty trucks, off-highway equipment, specialty vehicles, and medium-duty vehicles. The company also provides aftermarket battery packs, service parts, diagnostic services, and technical training. Proterra operates as an independent business unit within Volvo Group following its 2024 acquisition, with design in California and manufacturing in South Carolina.
Differentiator
Problem solved
Functional benefit
Products and services
- Onyx Slate Battery Platform
Quantifiable outcome
- 50M+ service miles powered by Proterra batteries to date
- +3 more outcomes
Companies that use Proterra
Customer profileNamed customers7 records
Segments6 records
Ideal customer profiles3 records
Proterra technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
Proterra partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core, minor and flagship.
- Volvo Group (Volvo Trucks North America)coreVolvo Trucks North America integrates Proterra's Onyx Battery Platform into the next-generation Volvo VNL Electric, a battery-electric truck designed for regional haul, drayage, and city distribution. The partnership builds on Volvo's seven-plus years of global experience delivering battery-electric trucks, with over 750 currently operating across the United States and Canada.
- Broward County TransitminorBroward County Transit purchased approximately $96 million worth of Proterra-manufactured electric buses, now facing service challenges following Proterra's bankruptcy. The county has formally applied to the Federal Transit Administration for grant forgiveness.
- Miami-Dade CountyminorMiami-Dade County purchased approximately $96 million worth of Proterra-manufactured electric buses and is exploring retrofit options with other companies to return the buses to service after Proterra's bankruptcy.
- KomatsucoreKomatsu partnered with Proterra to power electric excavators using Proterra's high energy dense battery packs manufactured in South Carolina. Komatsu's electric excavators eliminate emissions while delivering diesel-equivalent performance.
- Mack TruckscoreMack Trucks partnered with Proterra to offer a battery-electric version of the new Mack Pioneer model, announced at ACT Expo 2025. This represents Mack's entry into the electric truck market using Proterra's proven battery technology.
- Taylor Machine WorkscoreTaylor Machine Works extended its partnership with Proterra to power electric port and industrial equipment (ZLC, ZEC, ZRS, and ZH-series) using Proterra battery technology. The Proterra battery system delivers 984 kWh of onboard energy enabling 16-20 hours of continuous operation per charge, with Yusen Terminals at the Port of Los Angeles having deployed the first five commercially available battery-electric top handlers.
- Volvo GroupflagshipIn February 2024, Volvo Group acquired Proterra Inc.'s battery business through a Chapter 11 process. Proterra now operates as an independent unit within Volvo, serving both external customers and Volvo's applications. The approximately USD 210 million acquisition strengthened Volvo's electrification capabilities for commercial vehicles.
Scale indicators4 records
Recent moves8 records
Expansion highlights5 records
Proterra competitors and assessment
Company assessmentBroad incumbents
- BYD: BYD is a vertically integrated battery and commercial EV manufacturer (buses, trucks, forklifts) that competes with Proterra in both cell sourcing and finished commercial vehicle platforms globally.
- Samsung SDI: Samsung SDI produces battery cells and packs for EVs and commercial applications globally, including a commercial vehicle battery business that competes directly with Proterra's heavy-duty pack portfolio.
- Cummins: Cummins is a leading commercial powertrain incumbent that has expanded into battery electric systems (e.g., Accelera) for trucks, buses, and off-highway, competing with Proterra across heavy-duty electrification.
- CATL: CATL is the world's largest battery manufacturer with growing presence in commercial vehicle cells and packs; a broad incumbent whose scale and cell cost advantage pressure specialist pack makers like Proterra.
- LG Energy Solution: LG Energy Solution supplies lithium-ion cells and packs to global commercial vehicle OEMs, representing a broad incumbent threat across both cell sourcing and pack assembly markets where Proterra competes.
Emerging players
- Xos Trucks: Xos Trucks is a US-based medium- and heavy-duty commercial EV OEM (step vans, delivery trucks) that uses third-party battery packs, making it a relevant adjacent/emerging player whose pack sourcing decisions affect Proterra's addressable customer base.
Direct peers
- Microvast: Microvast produces lithium-ion battery systems for commercial and industrial EVs including buses, trucks, and specialty vehicles, making it a direct competitor in purpose-built heavy-duty packs with comparable cell-to-pack offerings.
- Akasol (BorgWarner): Akasol, now part of BorgWarner, supplies modular lithium-ion battery packs for commercial vehicles (buses, trucks, rail, off-highway) in Europe and North America, directly comparable to Proterra's OEM-embedded pack strategy.
- Forsee Power: Forsee Power designs and manufactures battery systems for commercial vehicles (buses, trucks, off-highway), closely matching Proterra's modular heavy-duty pack business with similar OEM-embedded go-to-market.
- Romeo Power (Nikola): Romeo Power developed battery packs for commercial EVs (trucks, buses) before being acquired by Nikola, serving as a directly comparable US-based heavy-duty battery pack peer with similar target customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Proterra social profiles
Digital presenceProterra compliance and trust
Trust signalCompliance6 records
Proterra financial estimates
Financial estimateRevenue estimate
Valuation estimate
Proterra leadership team
Management profileNumber of profiles
Profiles7 records
Proterra funding detail
Funding detailFunding overview
Funding rounds18 records
Investors39 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Proterra M&A and investment
M&A and investmentM&A
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Proterra
What does Proterra do?
Proterra designs, manufactures, and sells purpose-built lithium-ion battery systems for medium- and heavy-duty commercial vehicles and equipment under the Onyx Slate and Onyx Strata modular platforms, with capacities ranging from approximately 40 kWh to over 200 kWh. The company partners with vehicle OEMs from concept through validation, launch, and aftermarket support, while also supplying replacement battery packs, service parts, diagnostics, and technician training for existing Proterra-powered fleets.
Is Proterra a public or private company?
Proterra is a private company. It is classified as corporate owned and is currently operating.
When was Proterra founded?
Proterra was founded in 2004. It employs 501 to 1,000 people.
Where is Proterra based?
Proterra is headquartered in Burlingame, United States, in the North America region.
How does Proterra make money?
Two revenue lines are on record. Battery Pack Sales are the primary driver. The others are aftermarket Parts & Service.
Who are Proterra's main competitors?
Broad incumbents on record are BYD, Samsung SDI, Cummins, CATL and LG Energy Solution. Xos Trucks is listed as an emerging player. Direct peers are Microvast, Akasol (BorgWarner), Forsee Power and Romeo Power (Nikola).
Does Proterra have an API?
No public API is recorded for Proterra.
What industry is Proterra in?
Proterra's product category is Commercial Vehicle Battery Systems. Its primary akta.pro industry code is IMACACAA, Battery Pack & Module Manufacturing (EV), with a secondary code of IMACABAK, Truck & Commercial Vehicle Electrification Manufacturing (eAxles/Battery Packs/Fuel Cells). Its NAICS code is 33591 and its SIC code is 3600.