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Compare · HASI vs MAIN

HASI vs MAIN

Side-by-side comparison of HA Sustainable Infrastructure Capital Inc. (HASI) and Main Street Capital Corporation (MAIN): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both HASI and MAIN operate in Finance/Investors Services (Finance), so they compete in similar markets.
  • HASI is the larger of the two at $5.46B, about 1.1x MAIN ($5.06B).
  • Over the past year, HASI is up 66.0% and MAIN is up 4.5% - HASI leads by 61.5 points.
  • MAIN has been more active in the news (11 items in the past 4 weeks vs 5 for HASI).
  • HASI has more recent analyst coverage (20 ratings vs 12 for MAIN).
PerformanceHASI+66.02%MAIN+4.50%
2025-05-02+0.00%2026-05-01
MetricHASIMAIN
Company
HA Sustainable Infrastructure Capital Inc.
Main Street Capital Corporation
Price
$42.50+1.30%
$56.23+0.68%
Market cap
$5.46B
$5.06B
1M return
+13.03%
+8.40%
1Y return
+66.02%
+4.50%
Industry
Finance/Investors Services
Finance/Investors Services
Exchange
NYSE
NYSE
IPO
2013
2007
News (4w)
5
11
Recent ratings
20
12
HASI

HA Sustainable Infrastructure Capital Inc.

Hannon Armstrong Sustainable Infrastructure Capital, Inc. provides capital and services to the energy efficiency, renewable energy, and other sustainable infrastructure markets in the United States. The company's projects include energy efficiency projects that reduce a buildings or facilities energy usage or cost through the use of solar generation, including heating, ventilation, and air conditioning systems, as well as lighting, energy controls, roofs, windows, building shells, and/or combined heat and power systems. It also focuses in the areas of grid connected projects that deploy cleaner energy sources, such as solar and wind to generate power; and other sustainable infrastructure projects, including upgraded transmission or distribution systems, water and storm water infrastructures, and other projects. The company qualifies as a real estate investment trust for U.S. federal income tax purposes. It generally would not be subject to federal corporate income taxes if it distributes at least 90% of its taxable income to its stockholders. Hannon Armstrong Sustainable Infrastructure Capital, Inc. was founded in 1981 and is headquartered in Annapolis, Maryland.

MAIN

Main Street Capital Corporation

Main Street Capital Corporation is a private equity firm specializes in equity capital to lower middle market companies. The firm also provides debt capital to middle market companies for acquisitions, management buyouts, growth financings, recapitalizations and refinancing. The firm seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its lower middle market portfolio. The firm typically invests in lower middle market companies generally with annual revenues between $10 million and $150 million. The firm's middle market debt investments are made in businesses that are generally larger in size than its lower middle market portfolio companies. It makes majority and minority equity investments. Main Street Capital Corporation was founded in 2007 and is based in Houston, Texas.

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