What CellBlock FCS does

CellBlock FCS, LLC is a Boston-headquartered (with manufacturing in Standish, Maine) private company founded in 2017 that designs, manufactures, and sells fire prevention and containment products specifically engineered for lithium-ion battery hazards. The company's portfolio spans the full battery lifecycle — from safe storage (battery cabinets and cases ranging from 1 kWh Micro to 200+ kWh Giga Max), to charging safety (Safe Charge e-bike racks, C/D/E-series charging sleeves and covers), to incident response (LIBIK kits for aviation and first responders, PED-Pad suppression pillows, high-heat gloves), to regulatory shipping and recycling (CellSafe drums, pails, envelope kits, and a reverse-logistics Lithium Battery Recycling Program).

The technical foundation is CellBlockEX, a proprietary mineral-based fire extinguishing granulate made from recycled glass with a micro-porous structure that suppresses battery fires through oxygen displacement, heat absorption at ~1500°F phase change, and sorption of flammable gases. This media is paired with FCP (Fire Containment Panel) composite lining technology and integrated into self-deploying suppression systems. Two granted US patents (11,559,709 and 11,542,091) protect the CellSafe packaging designs, and multiple DOT Special Permits (SP 21442, SP 20549, SP 20910) provide regulatory relief for shipping damaged, defective, and recalled batteries — including the only UPS-approved parcel solution for batteries over 300 Wh. The FDNY-approved Safe Charge Rack is the first system bypassing NYC fire code 309.3 for e-mobility charging.

CellBlock generates revenue primarily through one-time hardware sales across its product lines, with a smaller managed-service stream from bundled recycling programs. Go-to-market combines direct e-commerce (Shopify storefront), direct enterprise quotes, and a curated distributor/reseller network (EcoBatt in Australia/NZ, MES Fire in Connecticut, SafeWare in Maryland), supplemented by industry events, content marketing, and partnerships with OEMs, recyclers, and standards bodies (Call2Recycle, Suppliers Partnership for the Environment, GM, Honda, Stellantis, Toyota). The company is privately held with no disclosed external funding, no parent company, and a stated headcount of 11–50 employees; in 2024 it tripled US production capacity and expanded into new verticals including defense, mining, and marine.

Name

CellBlock FCS

Legal name

CellBlock FCS, LLC

Website

https://cellblockfcs.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

CellBlock FCS designs and manufactures patented fire suppression media (CellBlockEX) and containment hardware — cases, cabinets, charging racks, incident kits, and DOT Special Permit packaging — for lithium-ion battery safety across aviation, automotive, micro-mobility, consumer electronics, recycling, defense, mining, and marine sectors.

Ownership category

akta.pro rank

Product category

Battery Fire Safety Equipment

NAICS

Wiring Device Manufacturing (33593)

akta.pro primary industry

Fireproofing & Intumescent Coatings (IMAIAKAH)

akta.pro secondary industry

Flame-Retardant & Smoke-Suppressant Compounds (IMANABAG)

Keywords

• Fire suppression media
• Battery storage cabinets
• Fire containment systems
• Lithium battery safety
• Battery incident response kits

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Product Sales: CellBlock FCS generates revenue primarily through the sale of physical safety products including battery storage cases, cabinets, charging racks, fire suppression drums, fire blankets, incident response kits, and related accessories. Products are sold as one-time purchases through e-commerce and direct sales.
2. Fire Suppression Media (CellBlockEX): Sale of the proprietary CellBlockEX fire suppression media in various forms including loose-fill, bags, and as component of other products. Can be replenished/recharged in containment systems.
3. Battery Recycling Program Services: Bundled services combining special permit packaging with reverse logistics and recycling services for end-of-life and damaged/defective/recalled batteries.
4. Special Permit Packaging: DOT Special Permit packaging solutions sold for regulatory compliance in shipping lithium-ion batteries. Includes reusable packaging systems.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

CellBlock FCS manufactures and sells fire suppression products (CellBlockEX mineral-based suppression media), battery storage and charging cabinets, fire containment cases, incident response kits, and DOT special permit packaging designed to contain and suppress lithium-ion battery fires. The company also provides fire blankets, charging accessories, and bag-style fire containment pouches for consumer and industrial use.

Product overview

CellBlock FCS offers a comprehensive portfolio of fire containment and suppression products specifically engineered for lithium-ion battery safety across the entire battery lifecycle. The core product line centers on CellBlockEX, a proprietary mineral-based fire suppression media that serves as the foundation for all containment solutions. Product portfolio includes: (1) Storage and Charging Solutions—Battery cabinets (floor, benchtop, toolbox, and energy safe configurations) and battery cases (ranging from 1 kWh Micro cases to 200+ kWh Giga Max cases) for safe storage and transport; (2) Charging Safety Products—Safe Charge battery racks with FireShield covers for e-bike charging, plus charging sleeves and covers (C, D, and E series) for e-mobility and consumer devices; (3) Emergency Response Systems—LIBIK incident kits in multiple configurations (standard, EDE, Quick Kit, Wall-mounted EHS, and Flight Deck) plus PED-Pad suppression pillows, drum plugs, and high-heat gloves; (4) Shipping and Recycling Solutions—CellSafe packaging (drums, pails, envelope kits, and MAX high-watt-hour variants) with DOT Special Permits for shipping damaged, defective, or recycled batteries. The company also offers add-on monitoring systems (EMS Exhaust Monitoring and Thermal Alert System) and a complete lithium battery recycling program with reverse logistics. All products undergo testing beyond standard compliance requirements and serve industries including aviation, automotive, micro-mobility, consumer electronics, battery recycling, mining, and defense.

Differentiator

Problem solved

Functional benefit

Brands

• CellSafe: DOT Special Permit packaging solutions for shipping lithium-ion batteries, including drums, pails, and envelope kits for battery recycling and recall programs.
• CellBlockEX
• Safe Charge
• LIBIK
• FireShield

Products and services

• CellBlockEX Fire Suppression Media

Quantifiable outcome

• Fire containment up to 1000 watt hours in micro cases, 40 kWh in large cases, and 200+ kWh in super-sized cases
• +3 more outcomes

Named customers7 records

Segments9 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

20 partnerships are on record, tiered minor and core.

• EcoBattminorChannel Partner/ Reseller/ DistributorAustralian distributor (Victoria) reselling CellBlock battery safety products in Australia/New Zealand market. Located at 81-85 Heatherdale Road, Ringwood, VIC 3134.
• MES FireminorChannel Partner/ Reseller/ DistributorMunicipal Emergency Services distributor covering northeastern US from Sandy Hook, CT. Provides CellBlock products to first responders and emergency services.
• SafeWareminorChannel Partner/ Reseller/ DistributorMaryland-based distributor reselling CellBlock products including Hazard3 brand for risk-based response training and guidance.
• Energy Security Agency (ESA)minorImplementation/ SI/ Consulting PartnerHEV Risk Analysis and guidance consulting partner providing risk assessment services related to battery safety.
• Hazard3minorImplementation/ SI/ Consulting PartnerA SafeWare brand providing risk-based response guidance and training including on-site, web-based, and microlearning for battery safety.
• NVFC (National Volunteer Fire Council)minorOthersNonprofit organization serving volunteer fire departments, partnering for outreach and education on battery safety in fire services.
• BattleBotscoreGTM or Marketing PartnerOfficial Battery Safety Partner relationship with the robot combat entertainment company. CellBlock products integrated into BattleBots' safety systems. Partnership provides brand visibility and credibility in robotics/DIY community.
• Suppliers Partnership for the Environment (SP)coreStrategic or Co-development PartnerContributed to SP's guidance document on EV battery safe handling and storage, developed by Responsible Battery Work Group subcommittee. Document provides resources on battery identification, safety prevention, thermal runaway, and regulatory compliance.
• Call2RecyclecoreStrategic or Co-development PartnerCo-chaired the Responsible Battery Work Group subcommittee that developed EV battery handling guidance. Nation's largest consumer battery recycling operation.
• Blue Whale MaterialsminorStrategic or Co-development PartnerCo-chaired the Responsible Battery Work Group subcommittee on EV battery safe handling.
• Cirba SolutionsminorStrategic or Co-development PartnerBattery value chain company contributing to EV battery safe handling guidance document.
• General MotorscoreStrategic or Co-development PartnerMajor automotive OEM contributor to SP guidance document on EV battery handling and storage standards.
• Honda Development & Manufacturing of AmericacoreStrategic or Co-development PartnerAutomotive OEM contributor to industry guidance on EV battery safe handling and storage.
• StellantiscoreStrategic or Co-development PartnerAutomotive OEM contributor to industry guidance on EV battery safe handling and storage.
• Toyota Motor North AmericacoreStrategic or Co-development PartnerAutomotive OEM contributor to industry guidance on EV battery safe handling and storage.
• Li-CycleminorStrategic or Co-development PartnerBattery value chain company contributing to EV battery safe handling guidance document.
• ORBISminorStrategic or Co-development PartnerBattery value chain company contributing to EV battery safe handling guidance document.
• UPScoreChannel Partner/ Reseller/ DistributorStrategic carrier partnership enabling CellBlock's Special Permit packaging solutions to be shipped via UPS parcel service, eliminating need for freight shipping.
• Call2RecyclecoreStrategic or Co-development PartnerPartnership strengthening safe collection and transportation of batteries and products containing them. Call2Recycle is the nation's largest consumer battery recycling operation.
• Flame AviationminorGTM or Marketing PartnerTraining partner for LIBIK products, co-sponsoring Royal Aeronautical Society conference on lithium battery safety in aviation.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Fireisolator: Fireisolator produces fire blankets and containment products specifically for EV and lithium-ion battery fires, operating as a direct competitor in the European and global EV fire blanket market. Their products overlap with CellBlock's FireShield and LIBIK offerings for first responders and automotive applications.
• Bridgehill: Bridgehill manufactures fire blankets specifically designed for lithium-ion battery fires in EVs and consumer devices, directly competing with CellBlock's FireShield blanket line. Both companies target EV fire response, micromobility charging safety, and industrial battery containment with similar temperature-rated textile technologies.
• Fireaway (Stat-X): Fireaway's Stat-X aerosol fire suppression systems are commonly deployed in battery energy storage and industrial lithium-ion applications, competing with CellBlock's CellBlockEX media-based approach. Both target the rapidly growing energy storage and battery fire suppression market with chemically distinct but functionally competing technologies.
• Securall Products: Securall manufactures battery storage cabinets specifically engineered for lithium-ion battery charging and storage, directly competing with CellBlock's Battery Storage Cabinet line. Both target similar industrial and commercial buyers needing fire-rated enclosures meeting building and fire code requirements.
• Justrite Safety Group: Justrite produces flammable storage cabinets and safety containers that overlap with CellBlock's battery storage cabinet product line. Both serve industrial safety buyers needing compliant containment for hazardous materials, with Justrite having an established distribution footprint and broader product portfolio.

Broad incumbents

• Hochiki America: Hochiki is a broad fire safety and life safety systems manufacturer offering detection and suppression across commercial and industrial markets. While they don't specialize in lithium-ion battery safety, they represent the type of large incumbent that could expand into battery-specific solutions as the market grows.
• Honeywell Fire Safety: Honeywell's fire safety division offers a comprehensive portfolio of fire detection, notification, and suppression products across commercial and industrial markets. As a major safety incumbent, they compete broadly with CellBlock in fire containment and have the resources to develop battery-specific solutions.

Emerging players

• Elide Fire USA: Elide Fire produces self-activating fire extinguishing balls and battery safety devices that provide automated suppression without mechanical intervention - similar in passive-deployment philosophy to CellBlock's self-deploying CellBlockEX technology. Both compete for fire prevention in industrial, automotive, and consumer battery applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@cellblockfcs6020/videos
• Facebookfacebook.com/CellBlockFCS
• LinkedInlinkedin.com/company/cellblock-fcs-llc
• Instagraminstagram.com/cellblock_fcs
• Xx.com/CellBlockFCS

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CellBlock FCS