Is an accelerator still worth doing for your business in 2025?
The answer is YES. If its a top tier accelerator like Ycombinator you should definitely do it. I have worked in finance and well as been though Techstars and have seen it all in the world of startups.
If you get an offer from YC, take it
Its hard enough to build a business but here are some of the positives:
1) the support
2) the network you need. For example pilots you need with corporates
3) Access to investors
the negatives:
1) taking your time
2) The equity you have to give up
Conclusion:
If you have to build remember it would be a good idea to build with a top tier accelerator. But not ALL are equity, however if its YC definitely take it or apply if you have not done so.