Mitsui Sumitomo Seguros S/a

What Mitsui Sumitomo Seguros S/a does

Mitsui Sumitomo Seguros S.A. is a Brazilian property and casualty insurance company operating as a wholly-owned subsidiary of MS&AD Insurance Group Holdings, the 8th largest insurance group globally and largest in Asia with US$ 216 billion in assets. The company's headquarters are in São Paulo and it employs approximately 300 people. It is rated A+ for financial strength and ranked 11th globally in ShareAction's ESG insurer survey. Mitsui Sumitomo offers a diversified portfolio organized across corporate/business insurance (MS Empresa, MS Médio Mercado, MS Property lines, Responsabilidade Civil Geral, Garantia, Riscos de Engenharia, MS Transporte) and personal lines (auto and residential). Since April 2024, retail auto, residential, and SME products have been operated and serviced through a strategic partnership with Porto Seguro, while the company retains direct corporate/commercial operations.

The company runs on an insurance technology platform comprising dedicated digital portals — Portal do Corretor (Kit Online) for broker self-service, Portal do Cliente for policyholders, and Portal de Sinistro for claims management — plus electronic endorsement systems (Sistema de Averbações Eletrônicas) and the CCR Mitsui risk control center for transport insurance operations. Distribution is broker-led via a network of over 11,000 insurance brokers (corretores) across Brazil, augmented by direct corporate field sales for larger commercial accounts and the Porto Seguro channel for retail. Revenue mechanics are premium-based, quote-driven underwriting with monthly billing cadences and installment options up to 10x without interest on selected lines.

The business has been actively repositioning: it completed full adaptation to Brazil's Lei nº 15.040/2024 (new insurance contract law effective December 2025), launched a new Business Insurance Portal in September 2025, appointed a new CFO in August 2025, and operates within MS&AD's global strategic framework — confirmed by MSIG's World President's December 2023 visit reinforcing Brazil's importance to the group. Mitsui Sumitomo has held three consecutive years of Great Place to Work certification (2021–2023), with employee satisfaction rising from 88% to 93%.

Name

Mitsui Sumitomo Seguros S/a

Legal name

MITSUI SUMITOMO SEGUROS S.A.

Website

https://www.msig.com.br

Company type

Private

Operating status

Operating

Short description

Mitsui Sumitomo Seguros is a Brazilian P&C insurer and subsidiary of MS&AD Insurance Group, serving corporate, SME, and transport customers through 11,000+ brokers and digital portals; retail auto and residential are operated via Porto Seguro partnership.

Ownership category

akta.pro rank

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Property & Casualty Insurance Premiums: Collection of insurance premiums from corporate and commercial insurance policies including property, liability, engineering, and transport coverage. Premiums are collected through brokers and partners.
2. Automobile Insurance: Vehicle insurance products operated through partnership with Porto Seguro since 2024. Premiums collected via brokers and partner channels.
3. Residential Insurance: Home insurance products. From April 2024, new policies and renewals are commercialized and serviced by Porto Seguro partnership.
4. Corporate/Business Insurance: Business insurance products for enterprises of various sizes, including MS Empresa, MS Médio Mercado, and specialized corporate coverages.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels7 records

Core offering

Mitsui Sumitomo Seguros S/A underwrites and distributes property, casualty, liability, engineering, surety, and transport cargo insurance for Brazilian businesses of all sizes, alongside auto and residential coverage operated through its Porto Seguro partnership. Insurance products are delivered via a network of more than 11,000 independent brokers, a dedicated broker portal, a partnership with Porto Seguro for retail segments, and direct corporate field sales supported by digital portals for clients and claims management.

Product overview

Mitsui Sumitomo Seguros S/a operates as a diversified insurance company offering a comprehensive portfolio of property, casualty, and liability insurance products. The product portfolio consists of business insurance products (MS Empresa, MS Médio Mercado, MS Property lines, Responsabilidade Civil Geral, Garantia, Riscos de Engenharia, MS Transporte), personal insurance products (Automóvel and MS Residência), and digital service platforms (Portal do Corretor, Portal do Cliente, Portal de Sinistro). The company also provides 24-hour assistance services. As of 2024, a strategic partnership with Porto Seguro enables operation of retail products (auto, residence, small/medium business) underwritten by Mitsui Sumitomo.

Differentiator

Problem solved

Functional benefit

Brands

• MS Empresa: Business insurance product scalable and accessible to multiple businesses with coverages tailored to needs.
• MS Médio Mercado
• MS Property Riscos Nomeados
• MS Property Riscos Operacionais
• MS Property Compreensivo Empresarial
• MS Transporte
• MitiCast

Products and services

• MS Empresa

Quantifiable outcome

• 93% employee satisfaction rate in 2022 GPTW survey
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Porto SegurocoreChannel Partner/ Reseller/ Distributor · 24 April 2024Strategic partnership where Porto Seguro operates Mitsui Sumitomo's retail insurance products including automobile, residential, and small/medium business coverage. From April 2024, new policies and renewals in these segments are commercialized and serviced by Porto Seguro. Existing policies remain valid until contract end. The partnership combines MSS's corporate insurance expertise with Porto's retail distribution strength.
• Sou SeguraminorOthers · 29 October 2021Mitsui Sumitomo became a supporter/patron of Sou Segura, the association of women in the insurance market. Participation includes mentorship programs, diversity initiatives, and support for women's professional development in the insurance sector.
• ACCV (Associação de Caridade e Cultura do Valoso)minorOthers · 26 July 2021Charitable organization receiving R$ 21.7 thousand donation from Mitsui Sumitomo. ACCV provides educational and community support services for underprivileged communities in the Butantã region of São Paulo. Donation was made through a solidarity campaign where employee donations were matched by the company.
• Referenced Workshops Network (Oficinas Referenciadas)minorOthersNetwork of referenced repair workshops providing quality repair services for auto insurance customers. Workshop locator available through company website. Separate networks for insurance operated directly by MSS and by Porto Seguro partnership.

Scale indicators8 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• HDI Seguros: Brazilian P&C insurer (German Talanx group backing); directly comparable in auto, residential, and corporate lines distributed through corretores.
• Porto Seguro: Largest independent Brazilian P&C insurer and MSS's strategic retail distribution partner since 2024; directly comparable in auto, residential, and SME lines and a key channel for MSS's retail book.
• Tokio Marine Seguradora: Brazilian subsidiary of Tokio Marine, another Japanese-headquartered P&C insurer; competes head-to-head with MSS in corporate, property, and transport insurance with similar broker-led distribution.
• Allianz Seguros: Brazilian subsidiary of Allianz; directly comparable in corporate property, engineering, transport, and auto insurance with similar global-group backing.
• Mapfre Seguros: Brazilian subsidiary of Spanish global insurer Mapfre; directly comparable in auto, residential, and corporate P&C with a multi-country parent.
• Zurich Seguros: Brazilian subsidiary of Zurich Insurance Group; comparable in corporate P&C, engineering, and liability lines for mid-to-large enterprises.
• SulAmérica: Major Brazilian P&C and health insurer with deep corporate broker relationships; competes in the same MS Empresa-style mid-market and large corporate segments.
• Sompo Seguros: Brazilian P&C subsidiary of Japanese Sompo Holdings; directly comparable in corporate property, auto, and specialty lines with a similar broker-driven model.
• Liberty Seguros: Brazilian P&C insurer offering auto, residential, and corporate lines through broker channels; directly comparable in product mix and distribution model.

Broad incumbents

• Bradesco Seguros: Largest Brazilian insurance conglomerate (part of Bradesco banking group); broad P&C, life, and health portfolio with captive bank distribution — a much larger incumbent competing for the same corporate and SME buyers.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@mitsuisumitomoseguros

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Mitsui Sumitomo Seguros S/a