Madison Capital | 2,273 followers on LinkedIn. Madison Capital is a New York-based private real estate investment and operating company that provides a full range of acquisition, development, financing, and asset and construction management to its real estate portfolio. Madison Capital's principals have over 50 years of combined investing and diverse operating experience in all major areas of real estate. Madison Capital's current portfolio of real estate assets is valued at over $3.2 billion and comprised of 24 properties across the nation.