Our History

Greenologists LLC was established in 2017 by Bob Nickels, Peggy Gans and Fred Fellendorf.  Collectively, the Greenologists partners have extensive experience with multifamily buildings in the following areas:

  • Energy Efficiency Retrofits
  • Property Management
  • Real Estate Brokerage
  • Building Ownership
  • Affordable Housing Regulations
  • Construction Services
  • Property and Project Financing
  • Energy Efficiency Program Managment

We have the industry certifications required to perform any type of energy-saving project. Peggy and Fred have worked with the NYSERDA and WAP multifamily programs for over a decade. Bob has nearly 40 years of experience providing property and construction management services to multifamily building and has been an owner representative for comprehensive energy saving projects at 14 apartment complexes.