Raised in the Bronx, New York, Ryan received a scholarship to attend Cornell University, where he earned a Bachelor of Arts degree in 1969.[5][6] He married his Cornell classmate, Terry Wehe Ryan the same year.
In 1983, Ryan founded Softcom, Inc. to make Ethernet cards.[1][5] When the company faced cash flow problems, Ryan sold Softcom to Hayes Microcomputer Products in 1984[9][10] and worked there as head of their West Coast division until 1988.[1][7]
Ryan departed Hayes Micro along with Jennette Symons, Jay Duncanson, and Steven Speckenbach. With $3 million in venture capital funding the four of them founded Aria Communication Inc. in 1989, with Ryan as CEO, to make ISDN equipment.[2] The name was changed to Ascend Communications the next year[2] as the company transitioned to focus on equipment for Internet providers.[7] By 1994, profits reached $8.7 million on sales of $39.3 million.[2]
Ascend had its initial public offering in May 1994 raising further funds for growth.[2] Ascend became the leading manufacturer of PoP boxes for Internet providers.[1][2] In 1995, Ryan's final year, Ascend was called the "top small public stock of the year" by Newsweek.[1][11]