Aon is a multinational professional services and consulting firm operating in risk management, insurance brokerage, human capital consulting, and benefits outsourcing. The company provides expertise across Risk Capital (broking, claims management, reinsurance, risk analytics) and Human Capital (health benefits, pensions, talent management, workplace wellbeing) to clients across 120 countries via 500 offices. Aon was formed through the acquisition of Hewitt Associates in October 2010, with Hewitt's legacy operations merged into Aon's consulting arm to create Aon Hewitt, which was later rebranded as Aon. Signal Plug searches live against aon.com's mail server to find and verify email addresses for any Aon employee.
Signal Plug searches live against aon.com's mail server — not a static database. Get a verified email for any Aon employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
Aon is a multinational professional services and consulting firm operating in risk management, insurance brokerage, human capital consulting, and benefits outsourcing. The company provides expertise across Risk Capital (broking, claims management, reinsurance, risk analytics) and Human Capital (health benefits, pensions, talent management, workplace wellbeing) to clients across 120 countries via 500 offices. Aon was formed through the acquisition of Hewitt Associates in October 2010, with Hewitt's legacy operations merged into Aon's consulting arm to create Aon Hewitt, which was later rebranded as Aon.
Competitive Advantage
Hewitt Associates was founded in 1940, making it a company with over 80 years of heritage before joining Aon. The Aon Hewitt brand and legal entities have been completely absorbed into Aon, representing full organizational integration rather than maintaining subsidiary status. Aon operates through approximately 500 offices across 120 countries, making it a truly global professional services firm. The 2017 acquisition of Aon Hewitt's benefits outsourcing division by Blackstone resulted in the creation of Alight Solutions, a standalone competitor. Aon explicitly positions itself as being 'in the business of better decisions' as its core mission statement.
The most commonly verified format at Aon:
Medium ConfidenceSignal Plug tests all common patterns against Aon's live mail server and returns whichever passes the SMTP check.
Run a live search for Aon →Data-driven signals to help you prospect Aon effectively.
Aon sells to large enterprises across 14+ industry verticals including Financial Institutions, Healthcare, Insurance, Life Sciences, Manufacturing, and Public Sector. Organizations seek Aon's expertise to manage complex risk decisions, workforce optimization, and benefits strategy in volatile economic environments.
Primary Contact
Chief Risk Officer
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against aon.com's mail server — not a static scraped database — which means results reflect the real, current state of Aon's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Aon contacts before upgrading.
Enter the contact's name
Type the first and last name of the Aon employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use aon.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Aon contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Aon names in a single batch.
Aon competes directly with Willis Towers Watson, Marsh & McLennan, Mercer and others in the Financial Services space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Aon | Risk Management, Consulting, and Benefits Outsourcing | firstname.lastname | ||
| Willis Towers Watson | — | — | — | firstname.lastname |
| Marsh & McLennan | — | — | — | firstname.lastname |
| Mercer | — | — | — | firstname.lastname |
| Deloitte Consulting | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Financial Services like Aon.
Based on Aon's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at aon.com. If you have a name and the domain, you can find a verified email.
How well Aon fits a typical B2B outbound pipeline, based on available signals.
Good Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against aon.com's mail server using SMTP verification. This means results reflect the current state of Aon's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Aon contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against aon.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Aon employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against aon.com in a single batch.
Aon operates across two key areas: Risk Capital (insurance broking, claims management, reinsurance, risk analytics) and Human Capital (benefits, pensions, talent management, workplace wellbeing).
Aon is headquartered in Lincolnshire, Illinois, United States.
Hewitt Associates was founded in 1940 and acquired by Aon in October 2010, creating the Aon Hewitt brand.
Aon operates in 120 countries through approximately 500 offices worldwide.
Signal Plug searches in real time against aon.com's mail server to find and verify email addresses for Aon employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month