Hartford Steam Boiler

What Hartford Steam Boiler does

Hartford Steam Boiler (HSB), legally The Hartford Steam Boiler Inspection and Insurance Company, is a U.S.-domiciled specialty insurer and wholly-owned subsidiary of Munich Re, operating as part of Munich Re Specialty. Founded in 1866 in Hartford, Connecticut, the company originated in steam-boiler inspection and engineering-based equipment insurance and has since expanded into cyber, IoT-enabled, and AI-related risk coverages, with operating subsidiaries in Canada, the U.K., and Ireland. Its product portfolio spans specialty commercial insurance (equipment breakdown, cyber), consumer-facing smart-home insurance programs (Smart Home Savings, developed with Samsung Electronics and aligned with the Home Connectivity Alliance Insurance Interface Specification), cyber insurance for connected commercial vehicles (HSB Commercial Cyber for Auto), and AI-related liability coverage (HSB AI Liability Insurance). HSB also operates an applied technology arm (HSB Applied Technology Solutions) and ships proprietary IoT hardware such as the HSB Meshify Slim water and freeze sensor with Amazon Sidewalk connectivity.

HSB generates revenue primarily through recurring insurance premiums on commercial and personal specialty lines, including cyber, property, equipment breakdown, and emerging risk categories, priced on a quote-based subscription model typically billed annually. The company distributes through traditional insurance agents and brokers, embedded partnerships with insurance carriers, and a flagship technology partnership with Samsung that reaches consumers through the SmartThings appliance ecosystem. Core technology centers on IoT-enabled risk assessment — ingesting telemetry from connected appliances, vehicles, and in-home sensors to support predictive risk modeling, anomaly detection (notably water-leak early warning), and usage-based premium calculation. Primary customer segments are small and medium-sized businesses operating connected commercial vehicles, U.S. homeowners with Samsung smart appliances, and insurance carriers seeking differentiated IoT-enabled products.

The business is wholly owned by Munich Re, providing reinsurance capacity, financial-strength rating, and global distribution; Munich Re acquired HSB in 2009. Leadership is in transition, with long-tenured CEO Greg Barats (since 2011) retiring in early 2026 and Jeffrey C. O'Shaughnessy named as successor, alongside a parallel transition from Andreas Kleiner to Kathleen O. Zortman within Munich Re Specialty. The company is currently expanding across product lines (AI liability, commercial auto cyber), geographies (Florida pilot of Smart Home Savings scaling to additional U.S. states and Europe), and ecosystem partnerships (Samsung, Home Connectivity Alliance, Amazon Sidewalk).

Name

Hartford Steam Boiler

Legal name

The Hartford Steam Boiler Inspection and Insurance Company

Website

https://hsb.com

Company type

Private

Founded year

1866

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Hartford Steam Boiler is a Munich Re subsidiary that provides specialty insurance and IoT-enabled risk prevention products — equipment breakdown, commercial cyber for connected vehicles, smart-home insurance via Samsung SmartThings, and AI liability coverage — to SMBs, homeowners, and insurance carriers across the U.S., Canada, U.K., and Ireland.

Ownership category

akta.pro rank

Headquarters

HQ city

Hartford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Insurance Premiums: HSB generates revenue through insurance premium collections from commercial and personal lines insurance policies including cyber insurance, property insurance, and specialty coverage. Premiums are collected on a recurring basis aligned with policy terms.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels3 records

Core offering

Hartford Steam Boiler (HSB) is a specialty insurance provider offering equipment breakdown, cyber, AI liability, and connected device insurance products, supported by engineering inspection services, IoT sensor technology, and data-driven risk assessment. HSB operates as a wholly-owned subsidiary of Munich Re and distributes coverage through agents, brokers, and insurance carrier partnerships in the U.S., Canada, U.K., and Ireland.

Product overview

Hartford Steam Boiler (HSB) is a Munich Re company offering a portfolio of specialty insurance products and technology-driven risk prevention solutions. The core offerings include cyber insurance products (HSB Commercial Cyber for Auto, HSB AI Liability Insurance), connected home insurance services (Smart Home Savings), IoT sensor devices (HSB Meshify Slim), and applied technology solutions for risk assessment. The portfolio operates across commercial auto, home insurance, and business risk segments, with technology integration through Samsung SmartThings for smart home data sharing.

Differentiator

Problem solved

Functional benefit

Products and services

• HSB Commercial Cyber for Auto Cyber insurance product for connected commercial vehicles that covers malware attacks on vehicle systems, cyber extortion demands, loss of income, additional operational expenses, and costs for alternative transportation when vehicles are disabled by cyber incidents.
• Smart Home Savings Service developed with Samsung Electronics that allows U.S. consumers with Samsung smart appliances connected to SmartThings to receive lower home insurance premiums by demonstrating protective device capabilities such as early water leak detection.
• HSB AI Liability Insurance Insurance coverage designed specifically for AI-related risks, providing protection for organizations deploying or using artificial intelligence technologies.
• HSB Meshify Slim Compact water and freeze sensor device for leak detection in homes, featuring Amazon Sidewalk connectivity for extended range and reliability.
• HSB Applied Technology Solutions Technology services division providing sensor technology, data-driven risk prevention solutions, and engineering services for risk assessment.
• Equipment Breakdown and Engineering Insurance Specialty insurance and inspection services for commercial and industrial equipment, including boilers, pressure vessels, and other engineered systems. Offered to commercial businesses through agents and brokers.

Quantifiable outcome

• Premium reductions for homeowners with smart home devices in Florida pilot program

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability4 records

Feature4 records

Partnerships

Three partnerships are on record, tiered flagship and core.

• Samsung ElectronicsflagshipStrategic or Co-development Partner · 5 January 2026Samsung Electronics and HSB launched Smart Home Savings, a service using Samsung appliances connected to SmartThings platform to help U.S. consumers qualify for lower home insurance premiums. The program was piloted in Florida in 2025 and is expanding to additional US states with plans to extend to Europe and other global regions. The service aligns with Home Connectivity Alliance Insurance Interface Specification.
• Home Connectivity AlliancecoreTechnology or Integration · 5 January 2026HSB participates in the Home Connectivity Alliance ecosystem, with the Smart Home Savings service aligned with the Home Connectivity Alliance Insurance Interface Specification. This open, pro-competitive model allows multiple insurers and smart-home brands to participate.
• Munich ReflagshipStrategic or Co-development PartnerHSB is a subsidiary of Munich Re (The Hartford Steam Boiler Inspection and Insurance Company), operating as part of Munich Re Specialty. Munich Re provides financial strength, global distribution network, and reinsurance capacity supporting HSB's specialty insurance operations.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• FM Global: FM Global is the most direct comparable to HSB, providing engineering-driven commercial property insurance with a deep specialization in equipment breakdown and boiler/machinery coverage. Both companies operate at the intersection of engineering risk assessment and specialty insurance underwriting.
• Beazley: Beazley is a London-based specialty insurer with material cyber and commercial specialty lines that directly overlap with HSB's emerging cyber insurance portfolio. Both serve complex commercial risks through specialty underwriting expertise.
• Hiscox: Hiscox is a specialty insurer focused on small and mid-sized businesses, with strong cyber and professional liability offerings. Its SMB-focused distribution model closely mirrors HSB's commercial cyber for auto and specialty coverage strategy.
• AXA XL: AXA XL is the specialty P&C division of AXA offering commercial specialty insurance including cyber, property, and engineering lines. Overlaps directly with HSB's specialty commercial portfolio and Munich Re-style global underwriting approach.
• Markel: Markel is a specialty insurer with deep expertise in niche commercial lines including cyber, professional liability, and specialty property. Its niche-underwriting model and SMB focus make it highly comparable to HSB's specialty commercial strategy.

Broad incumbents

• Chubb: Chubb is one of the largest global P&C insurers with a substantial specialty insurance division. While broader than HSB, Chubb's cyber, equipment breakdown, and specialty commercial offerings overlap with HSB's product portfolio.
• Travelers: Travelers is a major US-based P&C insurer with significant commercial and specialty lines including equipment breakdown and cyber. Comparable to HSB as a broad incumbent overlapping on commercial specialty coverage.
• AIG: AIG is a global insurance conglomerate with a substantial specialty insurance division. Its Lexington Insurance unit is a longstanding competitor in the US specialty and excess & surplus markets overlapping with HSB's specialty positioning.
• Zurich Insurance Group: Zurich is a global insurer with significant commercial and specialty P&C operations. Its commercial cyber, engineering, and equipment breakdown offerings directly overlap with HSB's specialty commercial portfolio across multiple geographies.

Emerging players

• Coalition: Coalition is a leading cyber insurance startup focused on technology-enabled active monitoring and risk assessment. Represents the emerging technology-led model of specialty insurance that HSB is also pursuing through IoT integration.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/htfdsteamboiler
• Facebookfacebook.com/hartfordsteamboiler
• LinkedInlinkedin.com/company/hsb

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about Hartford Steam Boiler