"investment program" is correct and usable in written English.
An example sentence would be: "The government announced a new investment program to stimulate the economy."
Anyone who invests in a mobile company is obviously seeing an annual investment program of billions of dollars.
An investment program aims to make alternative energy less expensive.
Shell also said it would continue with a far-reaching investment program.
Early reports suggested that the Hartz Commission would recommend creating a vast government job investment program.
If the Treasury's investment program works, then some big institutions will do very well.
The investment program is solid as well, though it contains some of the predictable lemons.
The Citizenship-by-Investment Program, introduced in 1984, has drawn buyers from the Middle East, Asia and Russia.
Amtrak would be cut by a third, as would the HOME Investment program, which creates affordable housing.
The agency launched its Small Investment Program in 2005 in an effort to promote investment among small and medium enterprises.
The Public-Private Investment Program would have the Treasury invest alongside private investors.
(NSIP, one of three elements listed, refers to the NATO Security Investment Program).
