Isdaner & Company again in 2021, has been recognized on the top Accounting Firm List by the Philadelphia Business Journal. The Journal ranks area accounting firms by the number of local CPAs employed at the firm. Isdaner & Company has been on this list for almost two decades. Of the top 25 accounting firms, Isdaner & Company is one of the few on the list that is locally owned and operated and that has been in business for over 50 years.