You also have WeFunder which is another big platform. Some bitcoin/crypto-related campaigns that used their services in the past:
https://wefunder.com/explore/bitcoinIt appears that they accept bitcoin payments
thru BitPay though, so take into consideration:
- Your investors will have to go through KYC if they want to invest more than 3K $.
- People from
these countries won't be able to participate in your campaign.
I'm also not sure if they allow you to withdraw your funds to bitcoin or that's just for investors to deposit with.
Some other platforms (mainly for ICO projects):
https://born2invest.com/articles/6-crypto-crowdfunding-platforms-need-know/