| 1955 |
Abraham L. Piaker started A.L. Piaker & Company. Philip M. Piaker, the first chairman of the accounting department of the School of Management at SUNY Binghamton, was a consultant who worked with the newly formed Company. |
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| 1964 |
A.L. Piaker & Company merged with Bangilsdorf & Rappaport. Allan R. Lyons joined the Firm in 1964 and the name was changed to Bangilsdorf, Piaker, Lyons and Rappaport. |
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| 1969 |
Firm moved its office from Binghamton, New York to Vestal, New York |
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| 1970’s |
Firm’s name was changed to Piaker, Lyons & Company |
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| 1980 |
Firm’s name was changed to Piaker & Lyons |
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| 1985 |
Opened an office in Norwich, New York |
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| 1989 |
Opened an office in Oneonta, New York |
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| 1990 |
Opened an office in Syracuse, New York |
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| 2003 |
Merged the Oneonta office into the Norwich office |
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| 2005 |
Firm moved its Vestal, New York office to its current location in downtown Binghamton, New York |
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| 2017 |
Relocated Syracuse office from downtown Syracuse to North Syracuse |
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| 2022 |
Merged the Norwich office into the Binghamton office |
