HSB Group

What HSB Group does

HSB Group, operating as The Hartford Steam Boiler Inspection and Insurance Company, is a 160-year-old specialty insurer headquartered in Hartford, Connecticut, and a wholly-owned subsidiary of Munich Re Group, operating under the Munich Re Specialty division. The company has evolved from its 1866 origins in steam boiler inspection and insurance into a multi-line specialty carrier serving small and mid-sized businesses, connected-fleet operators, and homeowners across the United States, Canada, the United Kingdom, and Ireland through regional entities (HSB Canada, HSB UK and Ireland).

HSB's core products are specialty insurance coverages rather than software: equipment breakdown insurance historically, and increasingly cyber and emerging-risk lines. The active portfolio includes HSB CyberPro (UK/Ireland micro-business cyber coverage with 24/7 incident response), HSB Commercial Cyber for Auto (connected commercial vehicle cyber coverage), HSB AI Liability Insurance (SME coverage for AI-related bodily injury, property damage, and advertising injury), and Non-Admitted Cyber distributed via the mShift broker platform. HSB also operates an IoT hardware line under the Meshify brand — the Meshify Defender Slim water and freeze sensor — which connects via Amazon Sidewalk and integrates with the Samsung SmartThings platform through the Smart Home Savings service that links connected-appliance data to home insurance premium reductions. HSB participates in the Home Connectivity Alliance Insurance Interface Specification to standardize connected-device-to-insurance data sharing.

HSB's business model is a B2B2C specialty insurance carrier model. Revenue is generated through recurring insurance premiums on policies distributed via partner insurance carriers and digital broker platforms (notably mShift), with IoT sensor sales and risk-prevention services as adjacent revenue streams. Pricing is quote-based and not publicly disclosed. GTM is channel-mediated: the company does not sell direct to consumers but embeds into carrier portfolios and broker workflows, and increasingly into IoT ecosystems (Samsung, Amazon Sidewalk) to drive risk-selection and premium-volume at the SMB and homeowner level. HSB's headcount of 1,001–5,000 and multi-country footprint, combined with two disclosed technology acquisitions (Meshify in 2016 and Zeguro in 2021), reflect an established, scaling specialty platform rather than an early-stage venture.

Name

HSB Group

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

HSB Group is a Hartford-based specialty insurer and wholly-owned Munich Re subsidiary providing equipment breakdown, cyber, AI liability, and connected-vehicle cyber coverage to small and mid-sized businesses and homeowners across the U.S., Canada, U.K., and Ireland, distributed through partner carriers and digital broker platforms.

Ownership category

akta.pro rank

Headquarters

HQ city

Hartford

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Cyber Insurance Premiums: HSB generates revenue through cyber insurance premiums for small businesses, including admitted and non-admitted cyber solutions offered through partner carriers and digital distribution platforms
2. AI Liability Insurance: New AI liability insurance coverage for small and medium-sized businesses addressing lawsuits from AI use, offered through HSB's partner insurance carriers
3. Commercial Cyber for Auto: Cyber coverage for connected commercial vehicles offered through insurers partnering with HSB as a business policy add-on

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

HSB Group provides specialty insurance and reinsurance products, including equipment breakdown insurance, cyber insurance, AI liability coverage, and commercial cyber for connected vehicles. The company also develops IoT-based risk prevention hardware (Meshify water and freeze sensors) and partners with technology firms such as Samsung to enable smart-home-linked insurance premium discounts. Products are distributed primarily through partner insurance carriers and digital broker platforms.

Product overview

HSB Group (Hartford Steam Boiler), part of Munich Re, is a multi-line specialty insurer and leading provider of cyber insurance for small businesses. The company offers a portfolio of specialized insurance products including AI Liability Insurance, HSB Commercial Cyber for Auto, HSB CyberPro (for UK/Ireland markets), and cyber insurance solutions distributed through digital platforms like mShift. Additionally, HSB provides IoT-based risk management through its Meshify line of water and freeze sensors, and collaborates with Samsung on the Smart Home Savings service that connects smart home appliances to insurance premium discounts. The company operates as part of Munich Re Specialty.

Differentiator

Problem solved

Functional benefit

Brands

• HSB CyberPro: Cyber insurance policy for micro and small businesses in the UK and Ireland, providing coverage against cyber risks and 24/7 incident response.
• HSB Commercial Cyber for Auto
• HSB Meshify
• Smart Home Savings

Products and services

• HSB AI Liability Insurance AI liability insurance coverage designed for small and medium-sized businesses, addressing lawsuits arising from AI use that may be excluded from standard General Liability policies. Coverage includes bodily injury, property damage, and advertising injury liability. Offered through HSB's partner insurance carriers.
• HSB Commercial Cyber for Auto Cyber insurance product protecting internet-connected commercial vehicles from hacking and business disruption. Covers damage to vehicle systems, software, and data from cyberattacks, cyber extortion, identity theft, business income loss, and related expenses such as towing and alternative transportation. Offered through insurers partnering with HSB as a business policy add-on.
• HSB CyberPro Cyber insurance policy for micro and small businesses in the UK and Ireland, providing coverage against cyber risks and 24/7 incident response. Designed to support businesses lacking internal cybersecurity resources.
• HSB Meshify Defender Slim HSB's thinnest IoT water and freeze sensor to date, designed to detect water leaks and freezing conditions in residential homes, habitational buildings, and small commercial locations. Connects to Amazon Sidewalk network and activates within three minutes without professional installation.
• Smart Home Savings Service developed with Samsung Electronics that allows U.S. consumers to lower home insurance premiums by sharing data about protective features in connected Samsung appliances through the SmartThings platform. Aligned with Home Connectivity Alliance Insurance Interface Specification.
• HSB Non-Admitted Cyber Non-admitted cyber insurance product providing brokers digital access through the mShift Platform. Enables quoting and initiating HSB cyber policies in minutes using embedded eligibility checks, intelligent data pre-fill, and appetite alignment.

Quantifiable outcome

• 74% of small and medium businesses already using AI programs
• +1 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability2 records

Feature4 records

Partnerships

Three partnerships are on record, tiered minor and core.

• Coveron (formerly NordProtect)minorStrategic or Co-development Partner · 26 May 2026Coveron (rebranded from NordProtect) offers monitoring and financial protection through a partnership with HSB insurance as part of their identity theft protection service bundling.
• Millennial Shift Technologies (mShift)coreTechnology or Integration · 15 April 2026mShift and HSB expanded collaboration with launch of HSB's Non-Admitted Cyber product on the mShift Platform, providing brokers streamlined digital access to both admitted and non-admitted cyber insurance solutions. The platform enables brokers to quote and initiate HSB cyber policies using embedded eligibility checks, intelligent data pre-fill, and appetite alignment.
• Samsung ElectronicscoreStrategic or Co-development Partner · 5 January 2026Samsung collaborated with HSB to launch Smart Home Savings, a service allowing U.S. consumers to lower home insurance premiums by sharing data about protective features in connected Samsung appliances through the SmartThings platform. The pilot in Florida with major U.S. home-insurance carriers is expanding to additional U.S. states and plans to extend to Europe and other global regions.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• AIG: Global insurance carrier with substantial specialty insurance operations including cyber coverage. Competes with HSB across multiple specialty lines and serves similar commercial customers.
• Travelers: Major Hartford-based P&C insurer with significant specialty insurance operations including cyber coverage. Like HSB, it serves business customers across multiple lines and competes in the specialty/commercial cyber market.
• The Hartford: Hartford-based P&C insurer with small business and specialty insurance operations. Competes with HSB in commercial and SMB insurance markets, including cyber coverage for small businesses.
• Chubb: Global P&C and specialty insurer with significant cyber insurance capabilities. Competes with HSB across specialty lines and serves similar SMB and mid-market customer segments.
• AXA XL: Global specialty insurance division of AXA offering specialty P&C coverages including cyber. Competes with HSB in specialty insurance markets serving commercial and mid-market customers.
• Liberty Mutual: Major P&C insurer with specialty insurance capabilities. Competes with HSB in commercial and specialty lines, particularly for small and mid-sized business customers.

Emerging players

• Coalition: Cyber insurance InsurTech focused on SMB and mid-market segments. Competes with HSB in the cyber insurance market with technology-driven underwriting and active monitoring approach.

Direct peers

• Markel: Specialty insurer focused on niche markets and unusual risks, similar to HSB's specialty positioning. Competes in specialty insurance including cyber and equipment-related coverages.
• Beazley: Specialty insurer with strong cyber insurance franchise targeting small and mid-sized businesses. Closely comparable to HSB given its specialty focus, cyber expertise, and SMB customer orientation.
• Hiscox: Specialty insurer with dedicated small business division and cyber insurance offerings. Directly comparable to HSB in targeting SMB customers with specialty coverages through broker distribution.

Market position

Strengths4 records

Weaknesses4 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&A2 records

Investments2 records

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

Frequently asked questions about HSB Group