Have used their services for decades and found them to be very reliable and dedicated, even compared to other paid-for service providers.
I particularly value that they do not just offer privacy as a service but it's part of their core values to the extend that they'll even challenge subpoenas when served with one.
They are also particularly keen on helping activists to stay safe where communication leaks could endanger their lives.
Last but not least, in over 20yrs I found their servers uptime to be excellent.
Riseup Networks are an amazing group of dedicated inviduals. Guided by principles of volunteerism, participatory democracy, grassroots organizing, mutual aid, and free software Riseup Networks provide listservs, e-mail accounts, VPN services, and software tools for those seeking privacy and liberatory social change within an increasingly non-private and controlled world. This organization is definitely worth supporting. Thank you Riseup Networks.
Riseup hosts various online tools (eg email listserves) to help grassroots activist groups. Several I work with have used Riseup's services in the past, and they've always been both reliable, as well as secure. They're also deeply committed to protecting user privacy, even in the context of state repression.
These guys do a treamendously good job at protecting the privacy of activists all over the wordl while providing Internet and network services to any good-willing person. They charge nothing and simply request voluntary donations but advise those who live in the South of the Globe and/or in impoverish areas to avoid donating to them. They work tirelessly to try and solve any technical problem and keep their users updated on any major sercurity, privacy but even social related issue. In a world where our identities and social status is constancly sold and disrecpected, RiseUp are bringing some light of hope and practicle tools to empower our own independence.