Likely to become or be: prospective clients. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "prospective" in a sentence
"They worry that paying donors will discourage altruistic people from signing up, possibly leading to an overall decline in prospective donors."
"The series will consist of interviews with environmental thought leaders exploring environmental threats and potential solutions from a long-term prospective; we'll ask, What will the world look like in 2050 if we continue on our current path?"
"But the commute should be a bigger factor in prospective employment and in choosing where to live than it is."