About Add on Systems
Add on Systems is a Software Development / SaaS company, headquartered in Oklahoma City, with 51 - 200 employees and annual revenue of $5M - $20M.
The formation of Add On Systems (AOS) began in January 1993 with Hugh Fish, Kevin Campbell, and Kent Hildreth. The idea was to provide quality-programming services and add on software to the truckload carrier on the AS/400 platform. Today AOS employs 15 associates, who have over 200 years of extensi...
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Add on Systems Company Highlights
Phone Number
(405) 418-xxxx
Corporate Office Address
100 Northwest 63rd Street
Oklahoma City, 73116
Website
Industries Served
Software Development / SaaSNumber of Employees
51 - 200 Employees
Company Revenue
$5M - $20M
Add on Systems Email Format
The most common Add on Systems email format is [f][last] (ex. jdoe@addonsystems.com), currently being used by 100% of Add on Systems business email addresses. There are 5 email formats used by Add on Systems.
Add on Systems Org
Add on Systems has 2 C-Level, 2 VP, 1 Director, 1 Manager, 18 Mid-Level, and 1 Other employees.
Add on Systems Decision Makers
- CEOHugh Fish
- CTOQuek Song
Add on Systems's Tech Stack
Frequently Asked Questions About
Add on Systems
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Who is the CEO of Add on Systems?
The CEO of Add on Systems is Hugh Fish. See full contact details ›
Who is the CTO of Add on Systems?
The CTO of Add on Systems is Quek Song. See full contact details ›
How many senior employees does Add on Systems have?
Add on Systems has 6 senior employees that are typically used for decision making.
What email format does Add on Systems use?
The most common Add on Systems email format is {f}{last} (e.g. jdoe@addonsystems.com).
Who are the key decision makers at Add on Systems?
Key decision makers at Add on Systems include Hugh Fish (CEO) and Quek Song (CTO). See full contact details ›
What technologies does Add on Systems use?
Add on Systems uses technologies including Adobe Tag Manager, Business Catalyst, and Cart Functionality.
How do I contact Add on Systems?
To contact Add on Systems, visit addonsystems.com.
What companies are similar to Add on Systems?
Companies similar to Add on Systems include Dental Marketing Agency, Razorfish, and Wunderman.
Where is Add on Systems headquartered?
Add on Systems is headquartered at 100 Northwest 63rd Street, Oklahoma City.
What is the main phone number for Add on Systems?
The main phone number for Add on Systems is (405) 418-xxxx.
What is the official website for Add on Systems?
The official website for Add on Systems is addonsystems.com.
What is the annual revenue of Add on Systems?
The annual revenue of Add on Systems is $5M - $20M.
How many employees does Add on Systems have?
Add on Systems has 51 - 200 employees.
What industry is Add on Systems in?
Add on Systems is in the Software Development / SaaS industry.
Last updated: November 4, 2025