A Dublin-based company founded by former BT Young Scientist winner Shane Curran has secured $3.2m in seed investment, led by Sequoia Capital.
Evervault is building the world's first cloud-based secure processing product.
It is developing the infrastructure that bridges secure cloud hardware and web/mobile applications. This takes privacy away from compliance and makes it a product feature.
Kleiner Perkins, Frontline, SV Angel and other leading tech innovators and investors also participated in the funding round.
Shane Curran said it was "disappointing" that the data privacy toolkit for developers is still "entirely lacklustre" in 2019.
"The support and backing from some of the best investors in the world provides an exciting opportunity to accelerate us on our path to fundamentally re-architect how our personal data is handled," Mr Curran said.
"I believe we can start a generational shift in how we can approach these problems, by building the privacy tools necessary to support technology builders and creators," he said.
"I'm thrilled to be on this journey and look forward to growing our world-class team here in Dublin to work towards our mission of making data privacy simple and accessible for all, he added.
Evervault was founded earlier this year by the Dubliner. The 19 year-old won the 2017 BT Young Scientist and Technology Exhibition for research in cryptography and data privacy while he was still in secondary school.
The company said its mission is to make data privacy simple and accessible for all.