OC&C First Round Interviews

First Round OC&C
New answer on Jan 05, 2021
4 Answers
Anonymous A asked on Jan 02, 2021

Hello, I have been invited for OC&C first round interviews and was wondering if anyone could share some information about it, a part from the fact that they will likely be asking market sizing questions.

Also, does anyone know what the average rate for going onto the 2nd round (invited to 2nd round / people interviewed) is?

Thank you in advance for your answers!

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Content Creator
replied on Jan 02, 2021
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut


Congrats on the interview, good way to kick off the year.

Although I have not done the OC&C process myself, I know that is very similar to the classic structure in MBB and general consulting.

Hence, you have 2 main workstreams ahead:


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Content Creator
replied on Jan 02, 2021
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

Hi there,


I imagine you've passed their online assessment screening phase?

In general, you should expect a similar process to the other consultancies (fit, case, possibly market sizing). That said, I would absolutely check with HR.

Furthermore, you will want to focus your preparation more on the areas the OC&C is known for (PE, M&A, CPG, TMT, Retail, etc).

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Content Creator
replied on Jan 05, 2021
Ex-Mckinsey|Certified Career Coach |Placed 500+ candidates at MBB & other consultancies

Hello there!

First round interviews at OC&C typically include 2 30-minute case study interviews.
You are right saying that there will likely be market sizing questions, though profitability could also be possible.

As for the rate it would be hard to predict due to the situation.

Hope it helps.

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Content Creator
replied on Jan 02, 2021
McKinsey | MBA professor for consulting interviews


- The first round tends to consist of "traditional" market sizing cases (e.g. P&L of a dentist).

- I don't know exactly the rate for going to the 2nd round as we're also living a very particular situation at the moment.

Which office are you applying for? I might give you some specific tips depending on that as I've had some candidates who got into OC&C in the past.



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Anonymous A on Jan 02, 2021

Hi Antonello, thank you for your answer. I am applying and interviewing for the London office

Clara gave the best answer


Content Creator
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut
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