Stewart Specialty Risk Underwriting Ltd.

What Stewart Specialty Risk Underwriting Ltd. does

Stewart Specialty Risk Underwriting Ltd. (SSRU) is a Toronto-based Managing General Underwriter (MGU) founded in 2016 by Stephen Stewart with backing from B.P. Marsh & Partners. The company underwrites specialty property and casualty insurance for large, complex commercial accounts across Canada, targeting severity-driven risks with meaningful attachment points and revenues exceeding CAD $100M. SSRU operates across six core verticals - Construction, Manufacturing, Natural Resources/Energy, Public Entity, Realty/Programs, and Transportation - and distributes exclusively through licensed retail insurance brokers in all 13 Canadian provinces and territories.

SSRU's product suite is organized into three lines: Casualty (CGL, Umbrella, Excess Casualty, Product Run-Off up to CAD/USD 10M, and Wrap-Up Liability up to 10-year terms); Property (Primary, Excess, Builder's Risk up to 60-month terms, Natural Resources, and Complex Property); and Program business (Condominiums and Residential Rentals). Underwriting is supported by a proprietary Foundation platform integrating quoting, binding, claims management, and accounting, plus data analytics that package exposure data for reinsurance partners to run through third-party RMS catastrophe models. Capacity is sourced through syndicated relationships with A-rated Canadian-domiciled carriers including Markel International (CAD/USD 47.5M Property, plus Casualty capacity) and Millennium Insurance Corporation (AM Best 'A', CAD/USD 38.5M Property capacity for Energy, Mining, and Manufacturing risks with a bespoke reinsurance treaty).

SSRU generates revenue through commissions and fees earned on underwriting authority granted by carrier partners. The company reported approximately CAD $18 million of operating revenue (approximately USD $13 million) for the 12 months ended September 30, 2025. In October 2025, Ryan Specialty (NYSE: RYAN) signed a definitive agreement to acquire SSRU for £28.3 million, with the transaction closing in December 2025 and delivering an 89.9% IRR to B.P. Marsh. SSRU now operates within the Ryan Specialty Underwriting Managers (RSUM) division, and in February 2026 was consolidated with six other Canadian MGUs into Ryan Specialty Canada Limited, a Toronto holding entity led by Stephen Stewart.

Name

Stewart Specialty Risk Underwriting Ltd.

Legal name

Stewart Specialty Risk Underwriting

Website

https://ssru.ca

Company type

Private

Founded year

2016

Operating status

Acquired

Headcount range

11–50 employees

Short description

SSRU is a Toronto-based specialty Managing General Underwriter offering high-hazard property and casualty capacity to Canadian insurance brokers for large commercial accounts exceeding CAD $100M in revenue. Founded in 2016 and acquired by Ryan Specialty in October 2025, it now operates within RSUM.

Ownership category

akta.pro rank

Headquarters

HQ city

Toronto

HQ country

Canada

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, Others

Revenue model

1. Insurance Underwriting Commissions and Fees: SSRU operates as an MGU earning commissions and fees from underwriting specialty insurance products. The company generated approximately CAD$18 million of operating revenue for the 12 months ended September 30, 2025 (approximately USD$13 million at current exchange rates). Revenue is generated through underwriting authority granted by carrier partners for property, casualty, and program business.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

SSRU is a Canadian Managing General Underwriter (MGU) that underwrites specialty Property and Casualty insurance products on behalf of A-rated carrier partners, distributing exclusively through licensed insurance brokers. The company provides syndicated A-rated, Canadian-domiciled capacity targeting severity-driven commercial risks with meaningful attachment points across Construction, Manufacturing, Natural Resources/Energy, Public Entity, Realty/Programs, and Transportation verticals. Policy terms range from 12-60 months and limits reach CAD/USD 47.5M for Property and CAD/USD 30M+ for Casualty.

Product overview

Stewart Specialty Risk Underwriting (SSRU) is a Canadian Managing General Underwriter (MGU) headquartered in Toronto, providing specialty Property and Casualty insurance products for complex, high-severity risks. The company operates three core product lines: Casualty Products (including CGL, Umbrella, Excess, Product Run-Off, and Wrap-Up Liability), Property Products (including Primary Property, Excess Property, Builder's Risk, Natural Resources Property, and Complex Property), and Program Products (Condominiums and Residential Rentals). SSRU also provides integrated Claims Management Services. The company offers A-rated, Canadian domiciled capacity with syndicated lines and targets severity driven risks with meaningful attachment points across sectors including Construction, Manufacturing, Natural Resources, Public Entity, Realty, and Transportation. In October 2025, SSRU was acquired by Ryan Specialty and now operates as part of the Ryan Specialty Underwriting Managers (RSUM) division.

Differentiator

Problem solved

Functional benefit

Products and services

• Casualty Products SSRU's core casualty insurance product line offering CGL (Commercial General Liability), Umbrella, Excess Casualty, Product Run-Off, and Wrap-Up Liability coverage. Target industries include Natural Resources, Manufacturing, Construction, Public Entity, and Transportation. Line capacity of CAD/USD 30M+ deployed on quota-share or layered structure, primary or excess basis.
• Property Products SSRU's core property insurance product line including Primary Property, Excess Property, Builder's Risk (with Delay in Start Up), Natural Resources Property, and Complex Property coverage. Targets severity driven property risks with meaningful attachment points and US/international exposures. Syndicated line of CAD/USD 47.5M with policy terms of 12-18 months for Operational Property and 60 months for Builder's Risk.
• Condominiums Program Residential condominium insurance program across Canada (excluding Quebec) targeting residential condos with TIV of CAD 5M or greater and minimum 50% owner occupancy. Minimum deductibles include $10,000 PD, $50,000 Flood/Sewer Backup/Water Damage, and Earthquake 5%/$100,000.
• Residential Rentals Program Quota share Property capacity for residential rentals across Canada (excluding Quebec), targeting newer, purpose-built, luxury rentals. Non-lead Quota-share Capacity limits up to CAD 25M. Premiums start at $7,500 net of commission with minimum deductibles of $100,000 Flood/Sewer Backup/Water Damage, $25,000 PD, and Earthquake 5%/$100,000.
• Claims Management Services Integrated claims management service with dedicated Claims professionals working alongside the Underwriting department. SSRU appoints independent adjusters, works with control adjusters, and coordinates with carriers, insureds and brokers. Claims can be submitted via dedicated email channels for Condominium and Residential Realty programs.

Quantifiable outcome

• Successfully renewed Property and Casualty facilities during challenging reinsurance market with improved terms
• +2 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Ryan SpecialtycoreStrategic or Co-development Partner · 25 October 2025Ryan Specialty acquired SSRU in October 2025 for £28.3 million. SSRU became part of the Ryan Specialty Underwriting Managers (RSUM) division. This acquisition expanded Ryan Specialty's Canadian market presence and capabilities in high-hazard property and casualty underwriting. The transaction closed in Q4 2025.
• Markel International Insurance Company Limited (Canadian Branch)coreOthers · 1 July 2025Markel expanded its partnership with SSRU to include Property capacity, complementing existing Casualty line capacity. This brought SSRU's Property Product available capacity to CAD/USD 47.5M. Markel is a core partner with impressive balance sheet strength and deep understanding of the Canadian market.
• Millennium Insurance CorporationcoreOthers · 1 April 2024Partnership with Millennium Insurance Corporation increased SSRU's A-rated Commercial Property capacity to $38.5M for risks in Energy, Mining and Manufacturing sectors. The Alberta-based insurer carries an AM Best rating of 'A (Excellent)'. Partnership includes creation of a bespoke reinsurance treaty.
• Guy CarpenterminorOthers · 1 January 2024Guy Carpenter, a global risk and reinsurance specialist, provided guidance and hard work during the reinsurance renewal cycle. SSRU acknowledged the reinsurance team at Guy Carpenter for their support during challenging treaty renewals.
• Dion StrategicminorImplementation/ SI/ Consulting Partner · 1 January 2023Dion Strategic worked as Third-Party Administrator on SSRU claims from inception and continues as preferred partner for claims management. SSRU's Director of Business Operations previously worked as TPA Claims Manager on the SSRU account at Dion Strategic.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Northbridge Financial Corporation: Canadian commercial P&C insurer (Intact subsidiary) underwriting large complex commercial property and casualty accounts in Canada — comparable large-account specialty underwriting focus.
• Beazley Canada: Global specialty insurer with Canadian operations focused on complex commercial and specialty risks — same high-hazard, severity-driven underwriting philosophy as SSRU.
• Echelon Insurance: Canadian specialty insurance operation owned by Intact Financial, operating through Managing General Agent structures on complex commercial and specialty lines — directly comparable business model and Canadian specialty focus.
• Burns & Wilcox Canada: Specialty MGU/wholesale brokerage distributing complex commercial and specialty coverage through retail brokers; operates in Canada with comparable broker-distributed specialty underwriting model.
• Victor Insurance Canada: Global specialty MGU/MGA manager operating in Canada with delegated authority from carrier partners across complex property and casualty lines — same MGU/underwriting-manager structure as SSRU.
• Trisura Guarantee Insurance Company: Toronto-based specialty MGU/surety insurer operating in Canada with comparable specialty product capabilities and broker distribution model; one of SSRU's closest publicly-traded comparables.

Broad incumbents

• Intact Financial Corporation: Canada's largest P&C insurer with broad commercial and specialty capabilities including specialty subsidiaries; serves overlapping broker and customer base in Canada with much broader product portfolio.
• Zurich Canada: Global commercial P&C insurer with Canadian operations across large complex commercial accounts — comparable large-account target segment and is also a former employer of multiple SSRU senior underwriters.

Emerging players

• CFC Underwriting: Specialty MGU focused on emerging and complex risks through delegated authority and proprietary technology — same MGU model with technology-enabled underwriting, though UK-headquartered with growing Canadian reach.

Others

• Markel Canada: A-rated specialty insurer that is both a SSRU capacity partner (Markel expanded Property capacity to SSRU in 2025) and a competitor in adjacent specialty lines; the relationship/competitive overlap makes it a particularly relevant comparable.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/stewart-specialty-risk-underwriting-ltd.

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds1 record

Investors1 record

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 Stewart Specialty Risk Underwriting Ltd.