CGF will subscribe to 19.8 million common shares of NMG at a share price of C$1.80 per share.
Based in Cleveland, Ohio, RELAM is a lessor of railroad maintenance-of-way equipment.
The transaction includes two solar farms in Texas, Mockingbird Solar and Sparta Solar; and Eleven Mile Solar Center, a solar and battery storage project in Arizona.
Besseges is an active fire protection and facilities management business for the retail, commercial and education sectors.
ISPN CEO Jeff Neblett and President and Chief Financial Officer Scott Lauber will continue leading the firm.
The buyer is L Squared Capital Partners.
Blackstone is 'positioning itself to be the largest financial investor in AI infrastructure in the world,' said Stephen Schwarzman.
M&A was the largest driver of growth for AssuredPartners, which acquired 500 businesses over the past 13 years, before the $13.45bn sale to Gallagher.
ENSO is an integrated bioenergy platform, specializing in the engineering, development, financing, construction, operation and supply of electric, thermal and cogeneration biomass plants.
Alcura France is a specialized distributor of home care services.