The phrase "innumerable contributions" is correct and can be used in written English.
It is usually used to describe a large number of contributions that cannot be counted or enumerated. For example, "The great explorer made innumerable contributions to the field of geography."
He made innumerable contributions to our clients, the Company and his colleagues.
One of the great scholar-curators of European art and culture, she made innumerable contributions to the Museum in the course of her nearly 60 year career.
In more than two dozen books of fiction and nonfiction, along with innumerable contributions to magazines, he became one of the first Canadian writers to be widely recognized outside of Canada.
It will be our mission to honor your dedication and innumerable contributions and, thus, perhaps, make Interior Design in New York better for our having been the beneficiary of your illuminating presence.
Harvard Law School's bicentennial has been an opportunity to reflect upon the law school's history and innumerable contributions of Harvard lawyers across the globe; it is also an opportunity for the HLS community to come together and do what the law school does best ask hard questions about important matters, think critically, and explore solutions for urgent problems.
We would like to thank Sven Schrinner for innumerable contributions to the development of Scaffold Hunter in the last years and his commitment to the project.
Her innumerable professional contributions led to significant growth and diversification of the Library's programs and services for the sciences.
And for innumerable other contributions to our understanding of the world, we welcomed an impressive new class of inductees into our prestigious National Academies.
And as a Latino, I am proud that, without a doubt, immigrants have made innumerable, heroic contributions to the United States.
It's history and glories, legendary founders, Boris Thomashefky (his grandson is conductor Michael Tilson Thomas and Jacob Adlerr, and its innumerable artistic contributions are noted.
A broad variety of implantable electrical and chemical recording devices have made innumerable and seminal contributions to our current understanding of normal brain function and the pathology of brain disorders and injuries.
