Aon competitors and alternatives
As of Nov 15, 2026, Alion lists 10 companies most like Aon: Marsh McLennan, Arthur J. Gallagher & Co., Accenture, Wtwco, CRC Group, AlixPartners, Cfins, Brown & Brown, W. R. Berkley Corporation and Onepoint.
- Aon itself has 22 open roles on Alion.
- Of them, Accenture is hiring the most, with 6,337 open roles.
- AlixPartners has raised the most venture funding on record: $1.2B.
Aon and its competitors compared
Open roles are the postings Alion lists today; their change is shown only for career sites that state posting dates. Funding is the venture money on record. A dash means Alion holds no figure.
| Company | Open roles | Change | Raised | Last round | Employees | Headquarters | Main technologies | Hiring in |
|---|---|---|---|---|---|---|---|---|
Aon
This company
|
22 | – | – | – | 1001-5000 | Dublin, Ireland | SQL, Python, Azure | India, Poland, France +3 more |
Marsh McLennan
In common: Insurance Brokers & Agencies, Management Consulting · Python, JavaScript, TypeScript |
1,407 | – | – | – | 5000+ | New York, United States | Python, Microsoft Excel, SQL | United States, United Kingdom, Australia +48 more |
| Arthur J. Gallagher & Co. In common: Insurance Brokers & Agencies, Management Consulting · Python, JavaScript, TypeScript | 9 | – | – | – | – | Rolling Meadows, United States | Python, SQL, AWS | India |
Accenture
In common: Management Consulting · Python, JavaScript, TypeScript · headquarters in Ireland |
6,337 | – | – | – | 5000+ | Dublin, Ireland | Python, Azure, AWS | India, United States, Philippines +53 more |
Wtwco
In common: Insurance Brokers & Agencies, Management Consulting · Python, JavaScript, TypeScript |
5 | – | – | – | – | London, United Kingdom | Azure, C#, JavaScript | India, Malaysia |
CRC Group
In common: Insurance Brokers & Agencies · Python, JavaScript, TypeScript |
93 | – | $226.8M | Venture round $226.8M2017 | 1001-5000 | Birmingham, United States | Azure, Microsoft Excel, Windows | United States |
AlixPartners
In common: Management Consulting · Python, JavaScript, TypeScript |
54 | +2%since Oct 12, 2026 | $1.2B | Venture round $1.2B2019 | 1001-5000 | New York, United States | Python, SQL, Tableau | United States, Germany, United Kingdom +10 more |
Cfins
In common: Insurance Brokers & Agencies · Python, JavaScript, TypeScript |
19 | – | – | – | 1001-5000 | Morristown, United States | CI/CD, Azure, SQL | India |
Brown & Brown
In common: Insurance Brokers & Agencies · Python, JavaScript, TypeScript |
234 | – | – | – | 5000+ | Daytona Beach, United States | Microsoft Excel, Azure, Windows | United States, United Kingdom, Mexico +2 more |
W. R. Berkley Corporation
In common: Insurance Brokers & Agencies · Python, JavaScript, TypeScript |
166 | – | – | – | 1001-5000 | Greenwich, United States | SQL, Python, Microsoft Excel | United States |
Onepoint
In common: Management Consulting · Python, JavaScript, TypeScript |
165 | – | – | – | 1001-5000 | Paris, France | Azure, SQL, CI/CD | France, Canada, Belgium +1 more |
How the list is made
The list comes from Alion's similar-companies engine, the same one AI agents query through the Alion MCP server. A company ranks higher when it shares more of Aon's industry segments and is less spread over others, when its job postings name the same technologies, when it is headquartered in the same country and when its size is close. The list is rebuilt every week.
How to cite this page
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page.
Alion, "Aon competitors and alternatives: 10 similar companies compared on hiring and funding", as of Nov 15, 2026. https://alion.io/company/aon/competitors