How long does the Aon interview process take?

Most candidates spend between 4 and 8 weeks from recruiter screen to offer. The onsite loop itself runs in a single day or is split across two half-days, with debrief and offer typically within 5 business days after.

How should I prepare specifically for Aon?

Focus on three things: (1) the company DNA shown above — what they actually grade for, (2) the rounds in your loop, especially the round most candidates underestimate, and (3) drilling on the question types in this guide using a structured framework like CIRCLES or STAR.

Does this apply to engineering or design roles at Aon?

The DNA stays the same — what changes is the round mix. SWE candidates face coding screens instead of Product Sense; designers face portfolio reviews and design exercises. The "what they value" and behavioral signals carry across all functions.

Other roles at Aon:IB Analyst Sales Product Manager Strategy Consultant

Enterprise · IB Analyst Interview Guide

Applies via Workday

How to Pass the Aon IB Analyst Interview in 2026

The Aon DNA (TL;DR)

Aon values strong analytical and problem-solving skills, especially in risk assessment and data interpretation. They look for candidates who demonstrate client focus, effective communication, and a collaborative mindset, aligning with their professional services culture.

The Aon Interview Loop

Your onsite loop will typically consist of 4 rounds.

1
Round 1
Recruiter Screen
Motivation, fit, GPA, deal interest.
2
Round 2
Technical Screen
Accounting, valuation (DCF, comps, precedent transactions), enterprise vs equity value.
3
Round 3
Market Knowledge
Recent deals, market events, sector outlook, why this firm.
4
Round 4
Superday
Multiple back-to-back interviews with MDs/VPs covering technical + behavioral + fit.
5
Round 5
Behavioral / Leadership
Past evidence of ownership, influence, resolving conflict.

The Danger Zone: Top Reasons Candidates Fail

Based on our database of Aon interview outcomes, avoid these common traps:

Focusing solely on compensation or prestige without demonstrating genuine interest in the work.
Focusing only on winning the argument rather than finding a collaborative solution.
Confusing the components of each (e.g., including minority interest in Enterprise Value).
Describing a situation that was easily resolved without demonstrating significant effort or skill.

Test Yourself: Real Aon Questions

Three real prompts pulled from our database.

Type · Past Experience

Tell me about a time you had to make a difficult trade-off in a project due to resource constraints or competing priorities. How did you make the decision, and what was the outcome?

Type · Behavioral/Fit

Describe a time you had to work on a project with a tight deadline and limited resources. How did you prioritize tasks and manage your time effectively?

Type · Valuation

Walk me through a Discounted Cash Flow (DCF) analysis. What are the key components, and what are common pitfalls in projecting free cash flows?

+ many more questions, signals, and worked examples

Unlock the rubric →

Aon Interview Question Bank

A sample from our database, grouped by round. Sign up to see the full set.

9 of 19 questions shown

Recruiter Screen

1
Type · Motivation
Why are you interested in investment banking, and specifically why Aon's finance advisory practice?

Technical Screen

2
Type · Valuation
Walk me through a Discounted Cash Flow (DCF) analysis. What are the key components, and what are common pitfalls in projecting free cash flows?
3
Type · Valuation
How would you value a company using Comparable Company Analysis (Comps)? What are the most important multiples to consider, and what adjustments might be necessary?
+ 1 more questions in this round (sign up to unlock)

Market Knowledge

4
Type · Market Trends
What are some of the most significant trends you've observed in the insurance brokerage or broader financial services M&A market recently? How might these impact Aon's advisory business?
5
Type · Deal Knowledge
Can you discuss a recent M&A transaction (within the last 6-12 months) that you found particularly interesting? What were the key drivers, and what was Aon's potential role?
+ 1 more questions in this round (sign up to unlock)

Superday

6
Type · Technical
Imagine Aon is advising a client on acquiring a mid-sized technology company. What are the key financial metrics and strategic considerations you would focus on during the due diligence process?
7
Type · Technical
If a company has negative EBITDA, how would you approach valuing it using multiples? What alternative valuation methods might be more appropriate?
+ 1 more questions in this round (sign up to unlock)

Behavioral / Leadership

8
Type · Past Experience
Tell me about a time you had to influence a senior stakeholder or a cross-functional team to adopt your product vision or strategy when they were initially resistant.
9
Type · Past Experience
Tell me about a time you had to make a difficult trade-off in a project due to resource constraints or competing priorities. How did you make the decision, and what was the outcome?
+ 7 more questions in this round (sign up to unlock)