BCG London Online Assessment – Latest Format (2025 Application)

Question

Hi everyone,

I’m applying to the BCG London office this week and would like to understand what the current format of their online assessment is. I’ve read mixed reports — some mention a Casey chatbot case, others a quantitative reasoning or HireQuotient test.

Could anyone who applied recently (Sept–Oct 2025) share:

Which test you received (chatbot, quantitative, or other)?
Roughly how long it took and how many questions there were?
Whether there was a video response at the end?

Any insights or preparation tips would be super appreciated! 🙏

Thanks in advance, and good luck to everyone applying this cycle!

Answer 1

Hey there :)

For BCG London 2025, most candidates get the Casey chatbot online case rather than a pure quantitative test. It usually has 8–10 questions and takes about 25–35 minutes. At the end, there’s a 1‑minute video where you present your recommendation. Questions mix multiple choice, short answer, data interpretation, and some quantitative reasoning. Once you submit an answer, you typically can’t go back.

To prep, practice under timed conditions, get comfortable interpreting data quickly, use a calculator efficiently, and keep your video recommendation concise with 1–2 main supporting arguments. Doing a few mock chatbot-style cases is really helpful to get used to the format.

best, Alessa :)

Answer 2

There is no recent account from my side that would differ significantly from how the test was described previously.

Which is also the point I'm trying to make - even though these tests change slightly from year to year, they are almost always calibrations rather than overhauls of the assessment.

So if you have examples of past tests and work on those, then you're typically within 80% of what you can expect in the new version of the test as well.

Of course, all of this applies unless they have dramatically changed the format.

Best,
Cristian