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Last updated: January 2026
This directory lists 52 battery management system manufacturers across the United States, from sophisticated high-voltage EV pack integrators to specialized low-voltage embedded system providers.
Buyers turn to these manufacturers to overcome critical power management challenges, ranging from designing robust thermal runaway protection systems for large-format packs to implementing advanced cell balancing strategies that extend battery cycle life. Many seek expertise in real-time State-of-Charge (SoC) estimation across extreme temperature ranges, or require custom firmware development to meet unique communication protocol specifications or specific current derating strategies.
The landscape of BMS manufacturers includes several distinct types. Some specialize in modular, off-the-shelf solutions ideal for rapid prototyping or lower-volume applications, often featuring configurable parameters. Others focus on highly custom, ground-up designs for specific battery chemistries and demanding environments, often providing full-stack hardware and software development. A third group excels in high-volume production, emphasizing cost optimization, stringent quality control, and robust supply chain management, often with a focus on specific voltage classes (e.g., 48V, 400V, 800V).
Engaging with a BMS manufacturer effectively requires more than just a specification sheet. Buyers should arrive with clear requirements for voltage and current ranges, anticipated operating temperature profiles, target battery chemistry (e.g., LFP, NMC, LTO), desired communication interfaces (e.g., CAN, UART), and any critical functional safety levels (e.g., ASIL-B, ASIL-C). Suppliers, in turn, expect detailed insights into the end application, expected cycle life, and production volume forecasts to properly scope design efforts and component selection.
A significant trend shaping this category is the increasing demand for "software-defined" BMS solutions, where adaptability and over-the-air (OTA) update capabilities are paramount. Manufacturers are investing heavily in more powerful microcontrollers and flexible software architectures that can evolve with new battery chemistries or changing grid demands, moving beyond fixed-function hardware. This shift is driving innovation in diagnostic capabilities and predictive maintenance algorithms.
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52 companies nationwide
AEM Electronics manufactures electronic control components for demanding applications. They offer solutions such as the BMS Satellite Module for Vehicle Control Units (VCU), providing critical components for advanced battery management systems.
American Battery Solutions engineers, develops, and manufactures lithium-ion battery systems for electric vehicles, electrified transportation, and industrial and commercial markets. The company provides comprehensive manufacturing services for advanced battery solutions, covering design, development, and production to ensure optimal integration and performance.
Alliance North America (ANA) develops and supplies hybrid energy systems and equipment. Its patented EBOSS® battery safety technology integrates UL listed electrical control, power, and safety components for Lithium-Ion battery applications, serving construction and industrial sectors with renewable energy storage solutions.
Custom Power designs and manufactures custom battery packs and full-function Battery Management Systems (BMS) for Lithium-Ion technologies. The company specializes in complex Defense & Aerospace, Medical, and Industrial applications, offering custom lithium-ion designs and assemblies.
Based in Fresno, CA, DPS Telecom manufactures remote monitoring and control solutions, including master alarm management systems and remote telemetry units (RTUs). With over 30 years of experience, the company provides real-time battery monitoring capabilities for critical infrastructure, serving utility, telecom, and transportation sectors.
Eagle Eye Power Solutions manufactures critical power solutions, including the VIGILANT® Battery Monitoring System (BMS). This system utilizes remote monitoring capabilities and machine learning. They also provide battery maintenance services and NERC compliance training for utility, industrial, data center, UPS, and telecommunications sectors.
Excell Battery engineers and manufactures custom battery solutions and packs for critical applications across oil & gas, industrial, and medical devices. They offer comprehensive battery monitoring systems and SBS compliant safety circuits for rechargeable batteries, with full lifecycle support from design to manufacturing at North American facilities.
Based in Redmond, OR, Expion360 manufactures and sells LiFePO4 lithium batteries. The company provides battery monitor kits and smart battery monitors, integrating advanced features like Bluetooth, CANbus communication, and thermal management into their products, offering comprehensive battery management solutions.
Based in Austin, TX, Fractal EMS Inc. develops in-house Battery Management Systems (BMS) and Energy Management Systems (EMS). They provide advanced, turnkey controls for stationary battery energy storage systems (BESS) and hybrid projects, monitoring, protecting, and optimizing batteries to maximize safety and profitability.
Green Cubes manufactures advanced industrial lithium batteries, providing integrated power solutions for applications such as forklifts and healthcare. The company specializes in high-performance battery technology, encompassing the design and integration of robust Battery Management Systems (BMS) for optimal safety and efficiency.
Hybrid Design Services, based in Troy, MI, engineers and manufactures advanced Battery Management Systems (BMS), battery packs, and power distribution systems. Established in 2004, they provide custom solutions designed for safety and reliability across demanding applications, including military, aerospace, and electric vehicles.
Innolia Energy, based in Pleasanton, CA, manufactures Battery Management Systems (BMS) for telecom, storage, and electric vehicle applications. They offer modular BMS solutions for 8-16 series cells and produce Lithium battery systems, including LFP/NMC/LiPo packs for various energy storage needs.
Intelligent Power Solutions (IPS) provides advanced battery monitoring systems utilizing patented impedance measuring technology. They serve industrial and commercial sectors, including UPS flooded cell, VRLA, switchgear, and TeleCom systems, ensuring reliable power management and battery health.
KULR Technology specializes in advanced thermal management technologies to develop safe, high-performance batteries for demanding sectors like space, aerospace, and defense. The company's battery solutions integrate sophisticated battery management systems to ensure optimal safety and performance.
Based in Clearwater, FL, Chargex Lithium Battery designs and manufactures custom OEM lithium battery packs, including LiFePO4, Solid-State, LTO, Sodium Ion, and NMC chemistries. They offer engineering and manufacturing services for marine, RV, aerospace, and military applications, integrating comprehensive Battery Protection Systems into their solutions.
Based in Hayward, CA, Lithos Energy, Inc. specializes in high-performance, modular, and customizable battery systems. The company engineers proprietary Battery Management Systems (BMS) in-house for intelligent control, real-time diagnostics, and robust fault protection. Their BMS features next-generation CAN 2.0B for comprehensive system monitoring and integration.
Based in Los Angeles, CA, Movicom Electric provides modular battery management systems (BMS) for automotive and industrial applications. Their BMS solutions monitor, balance, and protect lithium-ion batteries across a wide voltage range. Systems offer cloud-based fleet monitoring, helping manufacturers and end-users optimize maintenance and operational effectiveness.
Based in Sunnyvale, CA, Nuvation Engineering specializes in end-to-end electronic design and product development. They offer hardware, embedded software, and FPGA design services for battery management and energy storage systems. From concept to production, they provide comprehensive battery management solutions for various industries.
Based in Reno, NV, Octillion designs and manufactures tailor-made battery systems for electric vehicles, commercial vehicles, and diverse industrial applications including marine and energy storage. The company also directly produces and sells battery management systems (BMS) as a component, offering high-volume, customized solutions for e-mobility.
Ewert Energy Systems, Inc. manufactures the Orion Battery Management System (BMS). This robust lithium-ion solution manages battery packs for electric, hybrid, and plug-in vehicles, meeting automotive-grade quality. It also supports stationary applications, including solar, wind storage, and UPS systems.
Based in Alpharetta, GA, Power Products Unlimited, LLC manufactures smart and custom battery solutions, along with chargers and audio accessories. They specialize in integrating Battery Management Systems (BMS) directly into smart batteries, customizing essential components to meet specific product requirements, particularly for two-way radios.
Based in Yorba Linda, CA, RRC Power Solutions designs and manufactures standardized lithium-ion battery packs, including drone battery systems, for professional applications. Their products feature integrated safety features and communication interfaces, indicating Battery Management System capabilities. They also provide multi-bay battery chargers.
SENS specializes in battery monitoring and integrated DC power systems for critical infrastructure. The company manufactures engine start battery chargers and comprehensive genset starting systems, incorporating battery selectors and advanced battery chemistries. SENS ensures reliable, uninterruptible power solutions for mission-critical operations.
Soteria Battery Innovation Group, based in Greenville, SC, is dedicated to revolutionizing battery safety. They advance patented technologies to empower the safe use of all batteries through a global consortium. The company takes a systems approach, integrating proven materials and detection methods to enhance safety across the entire battery system.
Stafl Systems LLC, based in South San Francisco, CA, engineers and manufactures lithium-ion battery management systems (BMS). They provide in-house rapid prototyping, circuit board assembly, battery pack manufacturing, and comprehensive energy storage solutions. The company serves industrial, marine, aerospace, automotive, and robotics sectors.
Based in York, NY, Starz Energies provides advanced energy solutions, specializing in custom battery packs, smart Battery Management Systems (BMS), and hybrid energy solutions. The company offers expert BMS contract manufacturing, delivering tailored solutions and high-volume production for reliable, high-performance battery systems.
Based in Virginia Beach, VA, BMZ USA Inc. specializes in end-to-end engineering and manufacturing of custom Lithium-Ion battery and energy storage systems. They provide comprehensive solutions, from battery design to after-sales service, covering all essential components, including Battery Management Systems, for diverse applications.
Based in Henderson, NV, Valence manufactures modular battery systems for industrial and commercial applications. Their proprietary Lithion XB Battery Management System (BMS) monitors temperature, voltage, and current, protecting against overcharge, over-discharge, and overheating. It supports CAN, Modbus, and Ethernet for seamless integration.
Based in Menlo Park, CA, Element Energy manufactures advanced Battery Management Systems (BMS), featuring proprietary hardware, software, and controls. The company specializes in creating solutions that enhance battery safety, extend battery life, and optimize performance for various applications. They focus on delivering innovative battery pack technologies.
Lithion Battery manufactures dependable lithium-ion batteries and energy storage systems for a wide range of industrial and commercial applications. They provide full-stack battery manufacturing, offering both off-the-shelf and custom power solutions designed for performance, safety, and scalability across various industries including specialty vehicles and military.
Based in Auburn Hills, MI, Marelli is a global automotive supplier providing advanced systems and components. The company develops and manufactures Battery Management Systems (BMS) for electric powertrains, inverters, and power electronics solutions, serving a wide range of hybrid and electric vehicle applications.
Based in Rochester Hills, MI, Marquardt manufactures low voltage Battery Management Systems for vehicles. Their systems provide real-time monitoring, cell balancing, and extend battery life, serving the automotive and electric vehicle industries. Marquardt focuses on enhancing vehicle performance and power management reliability.
Based in Beaverton, OR, Mobile Power Solutions specializes in custom lithium battery solutions and battery pack assembly for mission-critical applications. They design and integrate custom Battery Management Systems (BMS) as Printed Circuit Board Assemblies (PCBA). The company offers comprehensive battery testing, serving aviation, space, and defense projects with AS9100D and ISO 17025 certifications.
Based in Novi, MI, Our Next Energy (ONE) engineers and manufactures high-performance LFP battery cells and packs. They specialize in energy storage solutions for industrial, defense, and grid applications, including their OTP and TTP cells and Aries LFP packs. ONE offers Battery Management Systems (BMS) as part of their advanced battery modules and ESS products.
Based in Burlingame, CA, Proterra designs and manufactures advanced battery systems for heavy-duty on- and off-road electric vehicles. They serve as an electrification partner, offering engineering expertise for battery integration, including software interfaces, thermal management, and safety compliance for their scalable, modular battery packs.
Spider-Way, based in Kansas City, MO, manufactures the A760-M smart Battery Management System (BMS). This system is designed for industrial vehicles, including electric forklifts, AGVs, and pallet jacks, ensuring reliable power management for commercial applications.
BatteryDAQ manufactures battery monitoring systems, including Sentry series hardware and associated software platforms. The company provides clear state-of-health data for effective battery management, proactive maintenance, and NERC compliance in critical power applications. Products are proudly Made in the USA.
Based in Los Angeles, CA, Crucial Power Products manufactures a full line of power protection products, including central lighting inverters and elevator backup units. The company offers a BMS Battery Monitoring System as part of its product portfolio, alongside a Global Monitoring System, to inform users about their power system's health and prevent problems.
Cummins Inc. is a global leader in power solutions, offering a century of expertise in developing and manufacturing advanced technologies. The company provides robust Battery Energy Storage Systems (BESS) that incorporate sophisticated Battery Management Systems (BMS) for reliable power. Cummins designs and integrates these critical components within their comprehensive power solutions.
EaglePicher specializes in designing and providing advanced Battery Management Systems (BMS) for mission-critical applications. Serving defense, aerospace, and medical markets, their custom-engineered BMS solutions optimize battery performance, enhance safety, and extend the lifespan of high-value battery systems. They leverage decades of experience in battery technology.
Based in Farmington Hills, MI, Embedded One specializes in scalable Battery Management Systems (BMS) for lithium-ion battery packs. Their products support applications from 12V to 1500V for automotive, marine, aerial, and consumer electronics. The company also offers comprehensive engineering services.
Based in Madison, WI, Franklin Electric Grid Solutions provides advanced battery monitoring and management systems. Their CELLGUARD™ Wired BMS offers remote health analysis for stationary batteries supporting critical assets. They also provide UNITE™ for custom battery reporting and the INCON® OPTIMIZER3 CABINET for real-time monitoring.
Nuvation Energy designs and manufactures UL 1973 Recognized Battery Management Systems (BMS) for stationary energy storage. They provide custom-engineered BMS solutions and design services for unique applications. The company serves leading energy storage providers with over 15 years of field-proven innovation.
Based in Columbus, IN, Accelera Zero provides advanced zero-emissions technologies, specializing in high-voltage NMC battery packs. These integrated battery systems offer high energy efficiency, durability, and fast charging capabilities for businesses transitioning to clean energy solutions.
Re:Build Battery Solutions engineers and manufactures custom Battery Management Systems (BMS) hardware and software, alongside ready-to-deploy platforms. They offer comprehensive battery system expertise, from module and pack design. Their BMS solutions provide accurate monitoring, fault detection, and secure operation for mobile and stationary applications.
Bogart Engineering has over 30 years of experience manufacturing shunt-based battery monitors and solar chargers. They provide systems designed to offer detailed insights into battery storage performance for various applications.
BorgWarner designs and manufactures advanced systems for the automotive industry, including modular Battery Management Systems (BMS) platforms. These systems feature advanced SoX algorithms for state of charge and health. The company also provides integrated drive modules and battery systems, supplying global automotive OEMs for various electric vehicle applications, such as autonomous shuttles.
CTS Corporation manufactures electronic components and integrated Battery Monitoring Systems (BMS). Their BMS solutions manage battery parameters like State-of-Charge (SoC) and State-of-Health (SoH). The company provides various sensors, passive components, and switches for critical applications across industrial, medical, and transportation markets.
ABB Electrification U.S. specializes in developing higher-voltage components essential for advanced energy storage applications. They provide robust electrical solutions crucial for the efficient and safe operation of energy systems, including vital components for battery management and electrification infrastructure. Their expertise supports diverse industrial needs.
Farasis Energy USA, Inc. provides advanced energy storage solutions and customized battery products for automotive, aerospace, powersports, specialty vehicle, and marine applications. Offering off-the-shelf and engineered solutions, the company focuses on high-performance battery technology.
GobelPower is a US-based manufacturer specializing in high-performance LiFePO4 batteries and advanced Battery Management Systems (BMS). They design and produce custom battery solutions and BMS units for various applications, emphasizing USA-made quality and technology.
Based in Pocatello, ID, Titan Power USA designs, prototypes, and manufactures custom battery systems in the USA. They produce small to large batches for UAV, government, and defense OEMs, integrating sophisticated battery management systems. The company ensures a secure, transparent, ITAR-friendly supply chain for high-performance power solutions.
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A manufacturer's deep experience with your chosen battery chemistry (e.g., LFP, NMC, LTO, lead-acid) is crucial because cell characteristics vary significantly. This expertise directly influences the accuracy of State-of-Charge (SoC) and State-of-Health (SoH) algorithms, the effectiveness of cell balancing, and the robustness of safety parameters. Without it, the BMS may misinterpret battery conditions, leading to suboptimal performance, reduced lifespan, or even safety incidents like thermal runaway due to incorrect voltage limits or temperature thresholds.
Functional safety standards like ISO 26262 (for automotive) or IEC 62619 (for industrial) ensure the BMS design actively prevents unreasonable risks due to system malfunctions. You need it when a BMS failure could lead to severe harm, such as in electric vehicles, grid energy storage, or medical devices. Manufacturers demonstrating compliance will have rigorous development processes, redundant architectures, robust fault detection, and extensive validation, often documented with specific ASIL (Automotive Safety Integrity Level) ratings, which is far beyond basic over-current/voltage protection.
Passive cell balancing dissipates excess energy from higher-voltage cells as heat, bringing them down to match lower-voltage cells. It's simpler and cheaper but less efficient, making it suitable for lower-capacity packs or applications where energy loss isn't critical. Active cell balancing transfers energy from higher-voltage cells to lower-voltage cells, improving efficiency and pack utilization, especially in large-capacity or high-power applications where maximizing range and lifespan is paramount. Your choice depends on budget, pack size, desired efficiency, and overall system energy density.
The BMS communication protocol is critical for seamless integration with your host controller, motor controller, charger, and other system components. CAN bus (Controller Area Network) is prevalent due to its robustness, multi-master capability, and widespread adoption in automotive and industrial sectors. When evaluating, consider the manufacturer's experience with your preferred protocol, their readiness to provide custom CAN IDs and data definitions, and the quality of their API/SDK documentation for integration. Poor protocol compatibility can lead to complex and costly software development or integration delays.
A "black box" BMS, where the firmware source code or low-level configurations are proprietary and inaccessible, carries significant risks. It limits your ability to diagnose complex field issues, customize charging/discharging algorithms for future cell types, implement unique safety features, or adapt to evolving industry standards. You become wholly dependent on the manufacturer for every firmware change, which can incur high costs, lengthy delays, and potentially lock you into a single vendor, hindering your long-term product evolution and support strategy.