"primarily founded on" is correct and usable in written English.
It is used to indicate that something is based mostly or otherwise primarily on a certain thing. For example: "The success of the project was primarily founded on the hard work of the team."
But the partnership is primarily founded on emotional intelligence.
This genre is primarily founded on the crazy stalker woman – Fatal Attraction, Play Misty for Me.
One important finding from this study is that decisions regarding WhWd are primarily founded on medical judgment.
It comprises new practices or artifacts which are primarily founded on the knowledge and expertise of external specialists in technology and science.
In contrast, classical bioprocess engineering has been primarily founded on first principles models, but it has systematically overlooked the details of the embedded biological system.
Our expectations are primarily founded on prediction markets, which respond quickly to new information; they update here in real-time during major events.
An extensive parametric study demonstrates that SSI effects are significant, primarily for squat, light structures, founded on soil-stratum of low stiffness.
The fair was founded on the premise of exhibiting primarily dealers who show new art.
The corporate governance risk nexus is founded on the fundamental premise that corporate governance regulation primarily aims at curbing opportunistic managerial behavior and excessive risk taking.
Current health policy practice, as outlined in the introduction, is implicitly founded on the notion that health professionals do access primarily centralised sources to acquire knowledge about innovative technologies.
Based on his philosophy of mind, on which Kant and Schopenhauer were the main influences, Brouwer characterized mathematics primarily as the free activity of exact thinking, an activity which is founded on the pure intuition of (inner) time.
