Isaac Oates
Founder & Chief Executive Officer



  • Top SaaS CEOs 2018


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Before founding Justworks, Isaac served for 12 years in the National Guard and Army Reserve as an intelligence officer, where the importance of an unshakeable team and a focus on people became clear to him. He began his professional career as a software engineer for Amazon, eventually leaving to build his first startup Adtuitive, which was acquired by Etsy in 2009.

At both Adtuitive and later Etsy, where Isaac led the HR and payments group, he recognized the system was broken. Frustrated by paperwork, exorbitant costs, and endless hours spent on administration instead of his team, he came up with the idea for Justworks in 2012.

Isaac holds an MBA from Cornell University and a BS in Computer Science from the University of Illinois at Urbana-Champaign. He lives in Manhattan with his son James.



  1. Isaac Oates has been in the SaaS industry since he started his career as web developer at Lucent Technologies (Nokia). He brings expertise to his company, Justworks, from previous positions at Amazon as a Lead Software Development Engineer and Senior Product Manager, and Etsy as a VP of Special Projects. Isaac also served as an intelligence officer in the National Guard and Army Reserve for 12 years during his time at Amazon, Yahoo and Adtuitive. He is very hands on, helping his employees to grow and ensuring they are given the proper training to succeed in their careers. Isaac co- founded a startup called Adtuitive (later acquired by Etsy), and as the business began to grow, he recognized how demanding and time-consuming the administrative and back-end side of running a business truly is and set out to change that reality for small businesses. From there, the concept of an all-in-one, easy-to-use platform for to manage HR and payroll was born and is now known as Justworks. Justworks was created to assist smaller startups and entrepreneurs who need a carrier to help provide benefits for their hardworking employees. With his past experience, Isaac was able to set up a Professional Employer Organization (PEO) model at Justworks that allows customers easy access to benefits such as 40’s, paid time off (PTO), and more. Recently, Justworks raised $40M to build a simpler business operations suite through Series D funding and has been continuing to help startups across the nation in major cities such as NY, DC, Philadelphia, LA, etc.

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