Nexus Underwriting Management
Nexus Underwriting Management is a London-based specialty Managing General Agent, the largest independent in the London market, underwriting complex risks across Financial Lines, Reinsurance, Specialty Casualty, Cyber, Marine, Trade Credit, and Fine Art for 1.1 million insureds in 12 countries through wholesale broker networks on behalf of 50+ capacity providers including Lloyd's syndicates, Axa, Beazley, and Hiscox.
- Company typePrivate
- Founded2008
- HeadquartersLondon, United Kingdom
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Nexus Underwriting Management does
Nexus Underwriting Management is the largest independent specialty Managing General Agent (MGA) in the London market, founded in 2008 by a group of experienced underwriters and now operating as a wholly-owned subsidiary of Kentro Capital Limited, which was acquired by Brown & Brown, Inc. (NYSE: BRO) in October 2023. The group serves 1.1 million insureds across 12 countries spanning Europe, the Americas, the Middle East, and Asia Pacific, with a headcount of approximately 300-350 specialists. Its core business is underwriting complex, hard-to-place risks that mainstream carriers avoid, across Financial Lines (Management and Professional Liability, Small Business Protect, Financial Services for asset managers), Reinsurance (A&H Reinsurance, Structured Solutions), Specialty Casualty (Product Recall and Contamination, Alternative Risk Transfer), Cyber Liability, Marine, Trade Credit and Surety, and Fine Art.
The group distributes exclusively through wholesale broker networks under a delegated-authority MGA model, with capacity provided by 50+ global underwriting partners including Lloyd's syndicates, Axa, Beazley, and Hiscox. Proprietary digital infrastructure includes the Nexus RiskWrite Portal, Nexus Approach, Millstream Online, and EBA Cauzioni platforms, complemented by an in-house claims team. Coverage caps include $5m for cyber (Nexus Cyber Policy), $12.5m for product recall, and policies for financial services firms with up to $3.0bn AUM, healthcare and cyber clients with up to $500m revenue, and management/professional liability coverage for companies with up to $350m revenue.
Revenue mechanics combine MGA commission on premiums placed with capacity providers, administrative fees, and, for some lines, premium retention between premiums collected and claims paid. The group has grown both organically and via 18 completed acquisitions, with 10 deals closing in 2025 including Sure Insurance Services, Evolve MGA, Arma Underwriting, and Spectrum Risk Management. Gross Written Premium stands at $550m with a 2025 projection of $650m, and the company has earned recognition including the London Stock Exchange's "1000 Companies to Inspire Britain" (2018, 2020), Sunday Times Profit Track 100 (2019, 2021), and International Track 200 (2020). The company holds regulated entity status across the UK (FCA), France (ACPR), Germany, Italy (RUI), Ireland, DIFC (DFSA), Labuan (FSA), and the US as a Lloyd's Coverholder.
Nexus Underwriting Management firmographics
Firmographics- Name
- Nexus Underwriting Management
- Legal name
- Kentro Capital Limited
- Website
- https://nexusunderwriting.com
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Nexus Underwriting Management is a London-based specialty Managing General Agent, the largest independent in the London market, underwriting complex risks across Financial Lines, Reinsurance, Specialty Casualty, Cyber, Marine, Trade Credit, and Fine Art for 1.1 million insureds in 12 countries through wholesale broker networks on behalf of 50+ capacity providers including Lloyd's syndicates, Axa, Beazley, and Hiscox.
- Ownership category
- akta.pro rank
Nexus Underwriting Management industry classification
Industry- Product category
- Specialty Insurance Underwriting
- NAICS
- Insurance Agencies and Brokerages (52421)
- SIC
- Insurance Agents, Brokers & Service (6411)
- akta.pro primary industry
- Insurance Program Administration & MGA/MGU Services (FSAEADAK)
- akta.pro secondary industry
- Structured Finance Origination, Underwriting & Distribution (FSACACAL)
Keywords
Where Nexus Underwriting Management is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices10 records
Markets served
Nexus Underwriting Management business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- MGA Premium-Based Revenue: As a Managing General Agent, Nexus earns revenue through underwriting premiums, managing insurance programs on behalf of capacity providers (insurers, reinsurers, Lloyd's syndicates). Revenue is generated from the spread between premiums collected and claims paid, plus administrative fees.
- Specialty Insurance Underwriting: Bespoke insurance products across Financial Lines, A&H Reinsurance, Specialty Casualty, Cyber, Fine Art and other niche classes. Revenue derived from premium writings for complex risks that traditional insurers avoid.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Management and Professional Liability - Primary and excess coverage available for privately held companies and not-for-profit organizations |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels5 records
Nexus Underwriting Management product offering
Product offeringCore offering
Nexus Underwriting Management is a specialty Managing General Agent (MGA) that underwrites and distributes bespoke insurance and reinsurance solutions on behalf of capacity providers, including Lloyd's syndicates and A+ rated carriers such as Axa, Beazley, and Hiscox. The company focuses on complex, niche, and hard-to-place risks across Financial Lines, Specialty Casualty, A&H Reinsurance, Cyber, Fine Art, Trade Credit and Surety, and Marine, delivered exclusively through wholesale and retail broker networks supported by proprietary online trading portals and an in-house claims team.
Product overview
Nexus Underwriting Management is a leading independent specialty Managing General Agent (MGA) group founded in 2008, operating globally across UK, Europe, US, and Asia markets with approximately 300+ employees. The company offers a diversified portfolio of specialty insurance and reinsurance products through its platform-plus-portals architecture. Core products include Financial Lines (Management and Professional Liability, Small Business Protect, Financial Services, Architects & Engineers), Specialty Casualty (Product Recall and Contamination, Alternative Risk Transfer), Reinsurance (A&H Reinsurance, General Treaty, Structured Solutions), Cyber Liability (Nexus Cyber Policy with up to $5M coverage), Marine (Yachtsure, Marinas and Marine Trade, Racecover, Marine Cargo), Trade Credit and Surety, A&H and Travel, and Fine Art insurance. The company operates proprietary digital platforms including Nexus RiskWrite Portal, Nexus Approach, Millstream Online, and EBA Cauzioni, delivering bespoke underwriting solutions with capacity backing from multiple insurers. Key growth areas include specialty casualty, reinsurance, and alternative risk transfer, with recent expansion into Fine Art insurance (January 2026) and Alternative Risk Transfer (2024).
Differentiator
Problem solved
Functional benefit
Brands
- Millstream Underwriting: Trade credit and specialty insurance products
- Millstream Online
- Millstream Global Flying
- Nexus Specialty
- Nexus Re
- Nexus CIFS
- Xenia Broking Group
Products and services
- Management and Professional Liability
Quantifiable outcome
- $550m GWP currently, projected to reach $650m
- +3 more outcomes
Companies that use Nexus Underwriting Management
Customer profileNamed customers6 records
Segments10 records
Ideal customer profiles8 records
Nexus Underwriting Management technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Nexus Underwriting Management partnerships and signals
Strategic signalScale indicators9 records
Recent moves9 records
Expansion highlights6 records
Nexus Underwriting Management competitors and assessment
Company assessmentDirect peers
- Canopius Group: Canopius is a Lloyd's and global specialty (re)insurer offering marine, energy, cyber, and specialty lines. It is comparable to Nexus in its specialty orientation, Lloyd's-centric distribution, and appetite for delegated authority partnerships.
- Beazley plc: Beazley is a Lloyd's-listed specialty insurer/MGA with leading positions in cyber, marine, political risk, and specialty lines. It competes head-to-head with Nexus in Financial Lines and A&H Reinsurance and serves as a capacity provider to Nexus's ART solutions, making it both a peer and a partner.
- Hiscox Ltd: Hiscox is a Lloyd's-listed specialty insurer with deep expertise in professional indemnity, cyber, marine, and fine art — overlapping significantly with Nexus's Financial Lines, Cyber, and Marine product sets. Hiscox also provides capacity to Nexus ART solutions and previously divested its MGA Marine and Global Flying businesses to Nexus.
- Ryan Specialty Group: Ryan Specialty is a US-headquartered specialty insurance platform combining wholesale brokerage, underwriting management, and delegated authority services. Its specialty MGA and binding authority model, multi-class portfolio, and acquisition-led growth mirror Nexus's strategy from a US base.
- CFC Underwriting: CFC is a London-based specialist MGA writing complex and emerging risks (cyber, professional indemnity, marine, aviation) for SMEs and mid-market clients. It is one of the closest direct comparables to Nexus in terms of London specialty MGA positioning, broker-led distribution, and appetite for hard-to-place risks.
- Ascot Underwriting Holdings: Ascot is a specialty insurance group operating at Lloyd's with delegated authority to syndicate-backed MGAs across property, marine, and specialty casualty. It is comparable to Nexus as a Lloyd's-anchored specialty platform offering underwriting expertise and capacity to MGAs.
- Brit Insurance Holdings: Brit is a Lloyd's-focused specialty insurer writing a diversified book across marine, energy, property, and specialty casualty. Its specialty, multi-class book and Lloyd's/MGA hybrid model make it a comparable specialty competitor to Nexus.
Emerging players
- Accelerant: Accelerant is a US-based specialty insurance platform that enables MGAs through delegated authority capacity, data, and analytics. It is comparable to Nexus as a specialty MGA enabler/aggregator but represents a newer, technology-led model focused on the US rather than the London market.
Broad incumbents
- Liberty Specialty Markets: Liberty Specialty Markets is the London hub of Liberty Mutual's global specialty operations, writing marine, energy, financial lines, and cyber through Lloyd's and company market platforms. It competes broadly with Nexus in specialty lines but as a major global carrier rather than an independent MGA.
- Markel Group: Markel is a US-listed specialty insurer with significant Lloyd's and international operations across professional indemnity, marine, fine art, and reinsurance. It overlaps with Nexus across multiple specialty classes but operates as a much larger, diversified carrier rather than an MGA.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks5 records
Key highlights7 records
Customer concentration
Nexus Underwriting Management social profiles
Digital presenceNexus Underwriting Management financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nexus Underwriting Management leadership team
Management profileNumber of profiles
Profiles23 records
Nexus Underwriting Management subsidiaries and ownership
Company hierarchySubsidiaries17 records
Nexus Underwriting Management funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nexus Underwriting Management M&A and investment
M&A and investmentM&A10 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Nexus Underwriting Management
What does Nexus Underwriting Management do?
Nexus Underwriting Management is a specialty Managing General Agent (MGA) that underwrites and distributes bespoke insurance and reinsurance solutions on behalf of capacity providers, including Lloyd's syndicates and A+ rated carriers such as Axa, Beazley, and Hiscox. The company focuses on complex, niche, and hard-to-place risks across Financial Lines, Specialty Casualty, A&H Reinsurance, Cyber, Fine Art, Trade Credit and Surety, and Marine, delivered exclusively through wholesale and retail broker networks supported by proprietary online trading portals and an in-house claims team.
Is Nexus Underwriting Management a public or private company?
Nexus Underwriting Management is a private company. It is classified as corporate owned and is currently operating.
When was Nexus Underwriting Management founded?
Nexus Underwriting Management was founded in 2008. It employs 251 to 500 people.
Where is Nexus Underwriting Management based?
Nexus Underwriting Management is headquartered in London, United Kingdom, in the Europe region.
How does Nexus Underwriting Management make money?
Two revenue lines are on record. MGA Premium-Based Revenue is the primary driver. The others are specialty Insurance Underwriting.
Who are Nexus Underwriting Management's main competitors?
Direct peers on record are Canopius Group, Beazley plc, Hiscox Ltd, Ryan Specialty Group, CFC Underwriting, Ascot Underwriting Holdings and Brit Insurance Holdings. Accelerant is listed as an emerging player. Broad incumbents are Liberty Specialty Markets and Markel Group.
Does Nexus Underwriting Management have an API?
No public API is recorded for Nexus Underwriting Management.
What industry is Nexus Underwriting Management in?
Nexus Underwriting Management's product category is Specialty Insurance Underwriting. Its primary akta.pro industry code is FSAEADAK, Insurance Program Administration & MGA/MGU Services, with a secondary code of FSACACAL, Structured Finance Origination, Underwriting & Distribution. Its NAICS code is 52421 and its SIC code is 6411.