Jonathan Sum Location
- Brea, CA, US
Jonathan Sum Work
- 2021 - now Co-Founder and Producer @
- 2024 - now Fractional Chief Marketing Officer @ Underwater Archives
- 2023 - now Fractional Chief Marketing Officer @ Ocean Mermaid
- 2022 - 2025 Chief Operations Officer @ Cogita
- 2022 - 2024 Real Estate Agent @
- 2022 - 2023 Marketing Manager and Media Director @ DDK Footwear
- 2021 - 2022 Real Estate Assistant @ Gary Wat Homes Inc.
- 2017 - 2020 Team Member in Robotics Team @ 3473: Team Sprocket
- 2019 - 2019 Summer Internship @
Jonathan Sum Summary
- Jonathan Sum, based in Brea, CA, US, is currently a Co-Founder and Producer at J Squared Productions. Jonathan Sum brings experience from previous roles at Underwater Archives, Ocean Mermaid, Cogita and Keller Williams Beverly Hills.
5 free lookup(s).
If you need more lookups,
subscriptions start at $34 USD/month.
Looking for a different Jonathan Sum?
Find contact details for 700 million professionals.
Others Named Jonathan Sum
Jonathan Sum
Associate Professor of Clinical Physical Therapy
Los Angeles, CA, US
Jonathan Sum
Compositor
Sydney, NSW, AU
Jonathan Sum
Actuarial Analyst
Singapore
Jonathan Sum
Technician
Netherlands
Top J Squared Productions Employees
Jonathan la
Co-Founder and Creative Director
Los Angeles, CA, US
How It Works
Get a Free Account
Sign up for a free account. No credit card required. Up to 5 free lookups. 
Search the #1 Contact Database
Get contact details of over 700M profiles across 60M companies - all with industry-leading accuracy. Sales and Recruiter users, try out our Email Finder Extension. 
Use our AI-Powered Email Finder
Find business and personal emails and mobile phone numbers with exclusive coverage across niche job titles, industries, and more for unparalleled targeting. Also available via our Contact Data API. 
G2 Crowd Trusted
300K+ Plugin Users
© 2026 RocketReach.co