Asalaamualaikum,
I have searched about a crowd investing firm in Dubai called Beehive where they have a bunch of investors for investing in startups and invites general public to join as an investor as it is crowd fund. Also companies can and do approach them to get the capital for their company.
I have seen their website that they have 2 options for the investment - convention and sharia compliant. For sharia compliant, they have a supervisory board called Shariah Supervisory Bureau who do the work for the sharia compliant screening of companies.
Even though I am interested in their sharia complaint investment platform, but I would like IFG to give their expert reviews about it as it will give more confidence about it and also it will leverage Beehiveās value and credibility.