Currently the website looks sleek and professional, yet impersonal. I can imagine, that this is a concious choice, looking at non-impact competition like LinkedIn.

Still, in my mind, both freelancers and (the people that work at) companies that engage in work with impact, are people who care. They care about the people they work with and the impact of their work. Since, as a freelancer, I'm working with you, I'd like to know and trust you.

https://community.workforimpact.com is a good effort in engaging, but it requires a deep-dive. I feel that some of the personality in there should be reflected on the website. Show that Work for Impact consist of caring people as well. Introduce the team, show how they relate to impact.