What Diot-Siaci does

Diot-Siaci is a France-headquartered, privately held insurance and reinsurance consulting and brokerage group organized into five business units (Credit, Corporate Solutions, Protection Sociale et Conseil, International Mobility, and International), serving large enterprises, mid-market firms, SMEs, local public entities, and individual consumers including expatriates. The group operates proprietary digital tools (My Ben&Fits, Clarity, MyPrevention) and a Global Benefits Management (GBM) framework, complemented by specialty subsidiaries including Cambiaso Risso (marine insurance, No. 2 Europe / No. 3 worldwide in ship hull), Driesassur (world leader in diamond and jewelry insurance), MSH International (expatriate health), and Oléa/ASK Networks (African corporate risk leader). The group operates own offices in approximately 40 countries and serves clients in ~170 countries via the Diot-Siaci Global Partners network, with 600+ international programs and 5 million persons insured.

The group generates revenue primarily through commissions and fees on insurance and reinsurance placements (property & casualty, marine, aviation, credit, financial risks, employee benefits, specialty lines), supplemented by advisory fees from employee benefits and social protection consulting, and managed services for captive insurance and alternative risk transfer. Pricing is bespoke and negotiated per engagement under multi-year contracts, with no public pricing tiers. Go-to-market combines direct field sales to enterprise and ETI clients, inside sales for mid-market and SMEs, and a network of partner brokers internationally.

In FY2025, the group reported €1.31 billion in revenue (+28% YoY), more than 8,500 employees, and ownership by Ardian (45%) and Burrus Group (47%) following a November 2025 ownership restructuring. Recent strategic actions include the 2024 acquisition of Unilight (India), 2024 NASCO alliance (Middle East), October 2025 launch of Diot-Siaci Global Markets (DSGM) in London, and the Swiss leadership appointment of David Cochet at Qualibroker Swiss Risk & Care.

Name

Diot-Siaci

Legal name

DIOT-SIACI SYMPHONY TOPCO – DIOT-SIACI Group Holding

Website

https://diot-siaci.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Diot-Siaci is a France-based, privately held multi-specialist insurance and reinsurance brokerage and consulting group serving large enterprises, mid-market firms, SMEs, public sector, and individuals across approximately 40 countries directly and ~170 countries via its partner network.

Ownership category

akta.pro rank

Product category

Insurance Brokerage and Consulting

NAICS

Insurance Agencies and Brokerages (524210)

SIC

Insurance Agents, Brokers & Service (6411)

akta.pro primary industry

Marine Specialty (Hull/P&I/Cargo) (FSAJAGAJ)

akta.pro secondary industries

Fine Art, Jewelry & Specie (FSAJAGAL), Protection & Indemnity (P&I) / Marine Liability Insurance (FSAJAHAH)

Keywords

• Insurance brokerage services
• Reinsurance consulting
• Employee benefits advisory
• Corporate risk management
• International insurance programs

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Insurance and reinsurance brokerage commissions: Diot-Siaci earns commissions and fees by placing insurance and reinsurance coverage on behalf of corporate and individual clients. The firm acts as an intermediary between insurers and policyholders, earning commissions on placements across property & casualty, marine, aviation, credit, financial risks, employee benefits, and specialty lines.
2. Employee benefits and social protection consulting: Advisory fees generated from consulting engagements covering health, provident/insurance, retirement savings, compensation & benefits, organizational transformation, and international employee benefits management.
3. Captive management and alternative risk transfer (ART): Advisory and administrative services for large corporate clients in the design and management of captive insurance vehicles and ART arrangements (risk pooling, global underwriting programs) from Luxembourg and Paris offices.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Diot-Siaci is a multi-specialist insurance and reinsurance brokerage and consulting group that designs, places, and manages insurance programs and social protection solutions for large enterprises, mid-market companies, SMEs, public sector entities, and individuals. The Group operates five business units covering property & casualty, marine and aviation, credit, employee benefits/social protection, and international mobility, with specialized subsidiaries including Cambiaso Risso (marine), Driesassur (jewelry), MSH International (expatriate health), and Diot-Siaci Global Markets (London).

Product overview

Diot-Siaci is a multi-specialist insurance and reinsurance consulting and brokerage group, leader in France and Europe. The company operates a platform-based architecture organized into five Business Units: Corporate Solutions (property, casualty, financial risks, motor, marine, aviation), Protection Sociale et Conseil (health, retirement, compensation), Credit (Diot-Credit brand), Mobilité Internationale (MSH International), and International operations. Key products and modules include Global Benefits Management for international employee benefits governance, Pilotage Financier for financial optimization, Clarity for job evaluation, My Ben&Fits for benefits mapping, Vivinter Care for daily assistance, and MyPrevention for health prevention. Specialized subsidiaries include Cambiaso Risso (marine insurance - 2nd in Europe, 3rd worldwide in ship hull), and Diot-Siaci Global Markets (London office for international expansion). The company serves clients in 170 countries through its Diot-Siaci Global Partners network.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate Solutions
• Santé & Prévoyance (Health & Provident)
• Retraite & Investissement (Retirement & Investment) Retirement savings advisory, employee share ownership, pension management, and social commitment evaluation services.
• Rémunération & Talents (Compensation & Talent) Compensation strategy, job evaluation using the Clarity methodology, international mobility, and talent development solutions.
• QVCT & Engagement (Quality of Work Life and Engagement) Quality of life at work and employee engagement solutions including social barometer surveys, absenteeism studies, and psychosocial risk audits.
• Credit Insurance, Bonds and Financing (Diot-Credit) Credit insurance, guarantee bonds, financing solutions, special risks coverage, and debt recovery services operated under the Diot-Credit brand.
• Solutions for Individuals Individual health insurance including international health coverage for expatriates, short-stay insurance, and personal assistance services offered through dedicated consumer-facing brands.
• MSH International International health insurance for expatriates covering medical needs, short stays abroad, and international life and disability coverage.
• Cambiaso Risso (Marine Insurance) Marine insurance and specialty lines subsidiary ranking second in Europe and third worldwide in ship hull insurance.
• Vivinter Care Daily life assistance and support services complementing health insurance coverage, offering household help, pet sitting, meal delivery, psychological support, and caregiver assistance.
• Diot-Siaci Global Markets (DSGM)

Quantifiable outcome

• Revenue of €1.31 billion in FY2025, a 28% increase year-over-year
• +4 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and major.

• Unilight (India)coreStrategic or Co-development Partner · 22 May 2024Diot-Siaci agreed to acquire a majority stake in Mumbai-based Unilight, a specialty (re)insurance broker, to expand its presence in the Indian insurance market and strengthen its position in Asia. The transaction is subject to regulatory approval.
• NASCO (National Insurance Company)coreStrategic or Co-development Partner · 1 March 2024Alliance announced in March 2024 with NASCO, the leading insurance and reinsurance broker in the Middle East, to reinforce Diot-Siaci's presence in the UAE (Dubai, Abu Dhabi) and Saudi Arabia.
• Cambiaso RissocoreStrategic or Co-development PartnerLeading marine insurance specialist subsidiary. With Cambiaso Risso, Diot-Siaci ranks No. 2 in Europe and No. 3 worldwide in ship hull insurance.
• DriesassurcoreStrategic or Co-development PartnerWorld leader in diamond and jewelry insurance through the Driesassur brand, representing a strong niche specialty position.
• Oléa NetworkmajorStrategic or Co-development PartnerAfrican network through which Diot-Siaci became the leading player in corporate risks in a fast-growing and volatile environment.
• ASK NetworkmajorStrategic or Co-development PartnerAfrican network (alongside Oléa) making Diot-Siaci the leading player in corporate risks in Africa.
• Diot-Siaci Global PartnerscoreChannel Partner/ Reseller/ DistributorInternational network of local broker partners enabling Diot-Siaci to serve clients in approximately 170 countries through ~600 international programs.

Scale indicators12 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• Marsh McLennan: Global insurance brokerage and risk-management leader with a multi-specialist platform spanning P&C, marine, employee benefits, and specialty lines. Closest global comparable to Diot-Siaci's multi-specialist model and international footprint.
• Aon: Global insurance and reinsurance brokerage firm operating across commercial risk, reinsurance, health, and wealth. Comparable to Diot-Siaci in offering a broad, multi-line platform serving large enterprises and multinationals.
• Bessé: French independent insurance and reinsurance broker with strong corporate, marine, and specialty capabilities. Direct French competitor, particularly comparable to Diot-Siaci's Cambiaso Risso and specialty practices.
• Howden Group: Fast-growing international insurance broker with strong European and specialty presence. Its acquisitive, multi-specialist playbook across P&C, marine, aviation, and employee benefits is highly analogous to Diot-Siaci's growth strategy.
• Lockton: World's largest independent insurance broker with significant European operations. Comparable as an employee-owned, multi-specialist broker serving large enterprises across P&C, benefits, and specialty lines.
• Willis Towers Watson (WTW): Global insurance, reinsurance, and risk advisory firm with strong European and specialty operations. WTW's Risk & Broking segment directly overlaps with Diot-Siaci's P&C, marine, and specialty brokerage businesses.
• Miller Insurance Services: UK-based specialist insurance broker with leading positions in marine, cargo, energy, and specie/precious metals. Closest peer to Diot-Siaci's Cambiaso Risso (marine) and Driesassur (jewelry) specialty franchises.
• Verlingue: Major French insurance broker (part of the Achmea group) focused on mid-market and enterprise clients across P&C and employee benefits. Direct domestic competitor to Diot-Siaci in the French corporate brokerage market.
• Arthur J. Gallagher & Co. US-headquartered global insurance brokerage and risk-management firm with growing international operations. Comparable for its multi-specialist, acquisition-driven growth model targeting mid-market and enterprise clients.

Emerging players

• TH March: UK-headquartered specialist insurance broker focused on the jewelry, watch, and precious-metals trade. The most direct comparable to Diot-Siaci's Driesassur in the diamond and jewelry insurance niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCd52Odhex6-RysmZd_RY0VA
• LinkedInlinkedin.com/company/diot-siaci
• Xx.com/DiotSiaci

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries10 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Diot-Siaci