ACKNOWLEDGMENTS
Contributions of persons other than co-authors, who have helped you substantially with your investigation should be acknowledged in a separate section in your paper. Recognition of assistance should be stated as briefly as possible. It is customary to acknowledge any financial support that you received for your investigation as well as borrowed materials and equipment.
For example:
The financial support from the Best Wishes Foundation is appreciated. We thank the Always On Top Co. for the use of their vacuum pump.