IDA Ireland has said 231 jobs are to be created by eight companies.
The jobs will be spread across the technology and business services with the majority based in Dublin.
IDA Ireland CEO Martin Shanahan said Ireland is a compelling location for early stage start-up companies.
50 jobs will be created by global technology consultancy Affirma Consulting by 2020 at its Dublin office as part of its plan to expand into European markets.
SentryOne, which provides software solutions on the Microsoft data platform, is also creating 50 jobs in sales, engineering, R&D, product management and customer support over the next three years.
Technology company Sojern plans to more than double its team of 56 with the creation of 36 jobs and Advendio, a cloud-based advertising hub, has established a Sales and Marketing centre in Dublin and is to create 20 jobs over the next three years.
Enfusion, Krypt Inc, and Lifesize are all creating 20 jobs each as part of their individual expansion plans, while 15 jobs will be created at wine app Vivino.
The jobs announcement was welcomed by Minister for Business, Enterprise and Innovation Heather Humphreys who said all the companies are at the forefront of their technologies and "it is terrific news that have decided to locate in Ireland".