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 · Strategy Consultant Interview Guide

How to Pass the Aon Strategy Consultant 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 5 rounds.

1
Round 1
Recruiter Screen
Motivation, fit, why consulting.
2
Round 2
Case Interview
Market sizing, profitability, market entry, M&A — structured problem-solving with hypothesis-driven analysis.
3
Round 3
PEI / Personal Experience
STAR-style stories on leadership, entrepreneurial drive, personal impact.
4
Round 4
Fit / Partner Round
Why this firm, why this office, deeper resume walkthrough with senior partner.
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:

Avoiding the conflict or failing to reach a resolution.
Describing a situation where they were a follower, not a leader.
Describing a situation where they simply presented their view without active listening or seeking common ground.
Not demonstrating a focus on preserving the working relationship or achieving a positive outcome.

Test Yourself: Real Aon Questions

Three real prompts pulled from our database.

Type · Influence

Describe a situation where you had to influence a stakeholder (colleague, manager, client) who initially disagreed with your perspective. How did you approach it, and what was the result?

Type · Market Entry

Should Aon acquire a smaller, specialized InsurTech firm to enhance its digital offerings in the commercial insurance space? Evaluate the strategic rationale and key risks.

Type · Firm Fit

Based on your understanding, what are Aon's key strategic priorities in the next 3-5 years, and how does the strategy consulting practice contribute to them?

+ 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 strategy consulting at Aon, particularly within our finance and enterprise practice?

Case Interview

2
Type · Market Sizing
Estimate the total addressable market for Aon's cyber risk consulting services in the EMEA region for large enterprises.
3
Type · Profitability
Aon's Risk Advisory division is experiencing declining profit margins. What are the potential causes, and how would you diagnose the core issues?
+ 2 more questions in this round (sign up to unlock)

PEI / Personal Experience

4
Type · Leadership
Describe a time you led a team through a significant change or challenge. What was your approach, and what was the outcome?
5
Type · Entrepreneurial Drive
Tell me about a time you identified an opportunity and took initiative to pursue it, even without explicit direction. What was the result?
+ 1 more questions in this round (sign up to unlock)

Fit / Partner Round

6
Type · Resume Deep Dive
Walk me through your experience at [Previous Company/Project]. What was your most significant contribution, and what did you learn from it?
7
Type · Firm Fit
Based on your understanding, what are Aon's key strategic priorities in the next 3-5 years, and how does the strategy consulting practice contribute to them?

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)

Unlock the full Aon question bank

Free signup, no credit card. You get every question + the framework, grading signals, and worked answer for each.

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Interview tracks at Aon

How Aon's DNA translates across functions. Pick your role.

Strategy consultants at Aon need strong analytical and structured problem-solving skills for complex client challenges in risk, HR, or insurance. They evaluate strategic thinking, client communication, and the ability to develop and present actionable, data-backed recommendations.

Influence

Describe a situation where you had to influence a stakeholder (colleague, manager, client) who initially disagreed with your perspective. How did you approach it, and what was the result?

Market Entry

Should Aon acquire a smaller, specialized InsurTech firm to enhance its digital offerings in the commercial insurance space? Evaluate the strategic rationale and key risks.

+ 1 more

Unlock the Strategy Consultant grading rubric for Aon

See full Strategy Consultant guide