The phrase "an equal partner on" is correct and usable in written English.
It can be used when discussing collaboration or partnership in a specific context, such as a project or initiative.
Example: "We aim to be an equal partner on this project, contributing equally to its success."
Alternatives: "a collaborative partner in" or "a joint partner in".
Therefore, the U.S. should immediately redeem Iran, end its isolation, and cooperate with the regime in Tehran on other issues of mutual interest before discussing the nuclear program directly: "A U.S. offer to cooperate with Iran as an equal partner on one or more non-nuclear issues will set the stage for [sic] more fruitful discussion of the nuclear issue.
"I was determined to buy the site," said Mr. Shvo, who is an equal partner on the project with Victor Homes, the development and construction company.
On issues as varied as Iraq reconstruction, arms control and nuclear nonproliferation, Mrs. Clinton described a fortified State Department that would be an equal partner to the Pentagon.
While nominally an equal partner to all members, Russia has felt like a junior partner in the S.C.O.
A petite woman with fair hair pulled back in an efficient bun, she is an equal partner, weighing in on both aesthetic and business decisions.
An accomplished and independent woman with serious scientific interests—she collaborated with her brother-in-law Lord Rayleigh on many scientific papers Eleanor Sidgwick worked as an equal partner with her husband on many fronts, particularly higher education for women and parapsychology.
It's actually beneficial to the world as a whole to see Africa as an equal partner as opposed to a drag on the economy".
And last week NATO's secretary general proposed making Moscow an equal partner in the alliance's deliberations on terrorism and other issues.
A few years later Bill Cosby radicalized television simply by being cool and debonair on "I Spy," an equal partner with co-star Robert Culp.
That personal self-interest and self-dealing is going on inside of business that you should be an equal partner with the leadership of that company.
