Choosing among cyber insurance brokers in the USA for businesses can be challenging. Companies need more than a policy that promises protection against cyberattacks. They need to understand ransomware coverage, data breach response, business interruption, cyber liability limits, exclusions, and the insurer’s claims support.
The U.S. cyber insurance market is growing, but cyber risks are also becoming more expensive. According to the National Association of Insurance Commissioners (NAIC), U.S. cyber insurance direct written premiums reached approximately $9.46 billion in 2025, including eligible surplus-lines business.
This guide explains how to compare cyber insurance brokers, identifies major U.S. and global brokerage firms, and answers common buyer questions about the biggest insurance brokers.
Who Are the Top Cyber Insurance Brokers in the USA?
A cyber insurance broker helps a business assess digital risks, compare insurance markets, negotiate policy terms, and understand coverage before a cyber incident occurs. Unlike an insurance carrier, a broker generally works with clients to find suitable coverage from available insurers.
These firms are worth considering when comparing cyber insurance brokers USA businesses can approach:
- Marsh
- Aon
- Arthur J. Gallagher & Co.
- Lockton
- CRC Group
Other large brokerage groups worth including in a comparison are Brown & Brown, HUB International, Alliant Insurance Services, USI Insurance Services, and Acrisure. Buyers should confirm the availability of a dedicated cyber specialist and the firm’s ability to place the specific coverage they need.
Important: This is a buyer-oriented shortlist, not a definitive ranking of cyber insurance brokers by market share, customer satisfaction, or claims performance. The best broker for a small company may not be the best choice for a multinational corporation
Who Are the Top 10 Insurance Brokers in the US?
There is no single universal top-10 list because industry publications use different measurements. Some rank firms by total brokerage revenue, while others rank independent property and casualty agencies by P&C revenue.
One useful public reference is Insurance Journal’s 2026 Top 100 Property/Casualty Agencies ranking. It focuses on retail agencies and uses P&C agency revenue, rather than ranking every wholesale broker or specialist cyber brokerage.
The first 10 entries are:
| Rank | Brokerage or agency | Reported P&C revenue |
|---|---|---|
| 1 | Alliant Insurance Services/Confie | $3.97 billion |
| 2 | HUB International | $3.10 billion |
| 3 | Lockton | $2.66 billion |
| 4 | Acrisure | $2.20 billion |
| 5 | BroadStreet Partners | $2.01 billion |
| 6 | USI Insurance Services | $1.58 billion |
| 7 | EPIC Insurance Brokers & Consultants | $992.6 million |
| 8 | Alera Group | $775 million |
| 9 | World Insurance Associates | $714 million |
| 10 | IMA | $710.6 million |
Figures are rounded from Insurance Journal’s published 2026 ranking. The publication says its data comes from voluntary agency submissions and public-source estimates and was not independently verified.
This list is useful for understanding the scale of major U.S. retail insurance agencies. It does not establish that the first-ranked company is automatically the best cyber insurance broker. Cyber expertise, specialist staff, insurer relationships, policy wording, and claims support matter more when choosing cyber coverage.
Who Are the USA Big 5 Insurance Brokers?
The phrase Big 5 insurance brokers commonly refers to the five largest global brokerage groups by revenue. According to the 2025 revenue ranking published in 2026 by AM Best, the leading five were:
- Marsh : Ranked first, with approximately $26.98 billion in 2025 revenue.
- Aon : Ranked second, with approximately $17.2 billion.
- Arthur J. Gallagher & Co. : Ranked third, with approximately $13.8 billion.
- WTW : Ranked fourth, with approximately $9.71 billion.
- Brown & Brown : Ranked fifth, with approximately $5.9 billion.
These are global brokerage revenue rankings, not a ranking of the best cyber insurance providers in the United States. Revenue also does not measure cyber insurance expertise or customer service.
What Are the Big 3 Insurance Brokers?
Based on the same 2025 global revenue ranking, the Big 3 are Marsh, Aon, and Arthur J. Gallagher & Co. They occupy the first three positions.
Businesses often compare these firms for large commercial insurance programs, multinational risk management, and specialist cyber insurance advice. Smaller companies, however, may receive more suitable service from a regional or specialist broker.
Which Insurance Brokers Offer Cyber Insurance Coverage?
Several large brokers have dedicated cyber practices, while specialist and wholesale brokers can help independent agents access cyber insurance markets.
Examples include:
- Marsh: Cyber insurance placement, risk analytics, and claims support.
- Aon: Cyber risk assessment, insurance solutions, and claims advocacy.
- Gallagher: Cyber liability brokerage and risk analysis.
- Lockton: Cyber and technology insurance solutions.
- CRC Group/INSUREtrust: Specialist cyber brokerage and wholesale-market expertise.
- ProWriters: A specialist option for professional liability and cyber insurance placement.
A broker does not necessarily underwrite the policy itself. The insurance carrier provides the actual coverage and handles claims under the contract. Before buying, identify the carrier, confirm its authorization to operate in your state, and read the policy wording.
How to Choose the Best Cyber Insurance Broker for Your Business
A large brokerage name does not guarantee that its policy is the right fit. Use these practical checks before requesting a cyber insurance quote.
1. Check industry experience. Ask whether the broker works with companies in your sector. Healthcare, financial services, retail, professional services, and technology businesses face different cyber exposures.
2. Compare multiple insurance markets. Ask which carriers the broker can approach and whether it can compare standalone cyber policies as well as cyber endorsements.
3. Review first-party coverage. This may include eligible costs for forensic investigations, data restoration, ransomware response, business interruption, and breach notifications.
4. Review third-party liability. Check whether the policy addresses privacy liability, network security liability, regulatory defense, and other claims from affected customers or business partners.
5. Understand exclusions and sublimits. Pay attention to social engineering, fraudulent funds transfers, unpatched systems, infrastructure outages, prior incidents, and war or state-backed attack exclusions. Some protections may require separate endorsements or have lower limits.
6. Ask about incident response. Find out whether the insurer provides a 24/7 breach hotline, approved forensic specialists, legal counsel, and public relations support.
7. Check broker and insurer credentials. Verify the broker’s state licensing and the carrier’s financial strength. Ask who will help if a claim is disputed or coverage is questioned.
How Many Cyber Insurance Brokers Are in the Top 50 in the USA :
There is no single official U.S. Top 50 cyber insurance broker ranking. Published lists generally rank insurance brokerages or agencies by revenue, not by the amount of cyber insurance they place.
For example, Business Insurance’s 2026 Agents & Brokers directory includes the nation’s Top 100 brokers based on year-end U.S. brokerage revenue. Insurance Journal separately publishes a Top 100 property and casualty agency list. These are different ranking systems, so their positions should not be combined into one supposedly definitive Top 50. businessinsurance.com
For a cyber insurance buyer, a more useful shortlist should identify firms that can demonstrate specialist cyber expertise, access to suitable insurers, relevant industry experience, and effective claims support.
What Does Cyber Insurance Cover in 2026?
Cyber insurance is designed to help businesses manage certain financial losses arising from cyber incidents. Coverage depends on the insurer, policy limits, exclusions, and endorsements.
Common coverage areas include:
| Coverage | What it may help pay for |
|---|---|
| Data breach response | Investigation, customer notifications, and credit monitoring |
| Ransomware and cyber extortion | Eligible incident response and extortion-related expenses |
| Business interruption | Lost income and extra expenses following a covered cyber event |
| Data restoration | Recovery or replacement of damaged electronic data |
| Cyber liability | Certain legal claims involving privacy breaches or network security failures |
| Regulatory defense | Eligible legal expenses associated with regulatory investigations |
| Social engineering | Certain losses caused by fraudulent instructions, if covered |
2026 market update: The NAIC’s latest report found that domestic cyber insurance policies in force increased 33% to 5.84 million in 2025. However, nearly two-thirds of those policies were cyber endorsements attached to other commercial insurance policies. This distinction matters because an endorsement may provide narrower protection or lower limits than a standalone cyber insurance policy.
People Also Ask
Marsh, Aon, Gallagher, Lockton, and specialist providers such as CRC Group/INSUREtrust are worth comparing. The best choice depends on your business size, industry, cyber risks, and required coverage.
Who are the top 10 insurance brokers in the US?
Insurance Journal’s 2026 Top 100 P&C agency ranking identifies Alliant, HUB International, Lockton, Acrisure, BroadStreet Partners, USI, EPIC, Alera Group, World Insurance Associates, and IMA as its first 10 entries. This is an agency revenue ranking, not a cyber insurance quality ranking.
Which insurance brokers offer cyber insurance coverage?
Marsh, Aon, Gallagher, Lockton, and CRC Group/INSUREtrust offer cyber-related brokerage services. Buyers should confirm availability for their state, industry, and business size.
Who are the Big 5 insurance brokers?
The 2025 global revenue ranking places Marsh, Aon, Gallagher, WTW, and Brown & Brown in the top five.
What are the Big 3 insurance brokers?
Marsh, Aon, and Arthur J. Gallagher & Co. are the top three in the cited global revenue ranking.
How do I get a cyber insurance quote in the USA?
Prepare information about annual revenue, employee numbers, data collected, security controls, previous incidents, and desired coverage limits. Contact several brokers and compare quotes using similar limits, deductibles, and exclusions.
Final Takeaway
Finding the right cyber insurance broker is an important step in protecting a business against digital risks. Marsh, Aon, Gallagher, Lockton, and specialist firms such as CRC Group/INSUREtrust offer options worth researching, but the largest broker is not automatically the best choice for every company.
Compare broker expertise, carrier options, policy exclusions, incident response support, and claims assistance before purchasing. Most importantly, remember that cyber insurance complements cybersecurity controls; it does not replace strong passwords, multifactor authentication, employee training, secure backups, and regular software updates.
Research and Reference Sources
- NAIC – 2026 Report on the Cybersecurity Insurance Market
- Insurance Journal – 2026 Top 100 Property/Casualty Agencies
- Business Insurance – 2026 Agents & Brokers Rankings
- AM Best – Top 20 Insurance and Reinsurance Brokers
- 2026 Cyber Insurance Awards USA Shortlist
Editorial note: Rankings measure different things, including brokerage revenue and retail agency revenue. They should not be interpreted as independent assessments of cyber insurance quality. Coverage availability, policy wording, and state licensing should always be verified before purchase.
