Can someone help me with a sentence and whether I need an apostrophe?

[Badburyrings]

Hi All,

This is the sentence:

I have over 25 years’ experience of project management, (then the sentence carries on with other listed experience).

Do I need the apostrophe at the end of years? Or do I construct it as:

I have 25 years of experience of project management,

If anyone could let me know that would be great, it's for a CV.

"I have over 25 years’ experience of project management" - this is correct.

You also avoid two 'ofs.'

Or is '....in project management' better? I don't work in this field so I don't know if you're in it or of it!

Yes to the apostrophe '...25 years' experience of...' - the possessive apostrophe stands in for 'of'.

It's preferable to your second version, because you have repetition of the word 'of' '...of experience of....'. Not such a big deal if it's '...of experience in...' etc, but I'd go with the apostrophe version.

I only know this as I have had to look it up many, many times!!

Yes, after the years, the experience belongs to the years. Not the year. You are correct.

25 years' experience.

Practically identical X post with @Fromage !

Yes you need the apostrophe and the first sentence is correct and better than the rewrite with two "of"s

Yes

Thank you all! I will leave it as it is. It has been like that for many years but I don't know why, I suddenly looked at it today and it looked odd.

But then again a lot of things look odd to me these days. There are so many misspellings of things if something is correct, it often looks incorrect because I have seen it spelt incorrectly too many times (if that makes sense!).

I think ‘25 years’ experience in project management’ sounds better than of…..

With over 25 years of project management experience, I understand the importance of clear communication and informed decision-making. CourseNavigator is here to guide you—whether you're a seasoned professional refining your skills or just beginning your journey toward project management courses certification. Let us help you take the next step with confidence.

You’re missing a couple of apostrophes, @Albertose ….