We utilize our technical, management and business knowledge, skill and experience in the field of accounting and bookkeeping to offer unfailing reliability in the delivery of our services.

We aim to tailor our solutions to the needs of our clients to assist them in meeting their organizational and business goals and objectives.

Exelsior was founded in 1996.


Mila Harris CEO and Owner with 15 years of National and International Experience, launched the operations servicing the bookkeeping and temporary financial staffing needs of small companies in the Metro New York Area. From this foundation, the Company has expanded its core accounting capabilities to include outsourced financial accounting departments, accounting services, bookkeeping services, office management support, accounting training, financial personnel search and more.