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FirmTypeHQWebsitePortfolio Example(s)Target EBITDA $MTarget Investment $MNotes 
3i
Private Equity
Londonhttps://www.3i.com/EC Waste
4848 Partners
Private Equity
Richmond, VAhttps://4848partners.com/MobileDumpsMiddle market PE and M&A advisory
A&M Capital
Private Equity
Greenwich, CThttps://www.a-mcapital.com/Organix Recycling$50-200M$15-100MIndustrial and business services
Acorn Innovestments
Venture Capital
Raleigh, NChttps://acorninnovestments.com/WasteZeroEarly stage advisor and investor
Alante Capital
Venture Capital
Santa Barbara, CAhttps://www.alantecapital.com/Circ, NovoloopEarly stage sustainability investor...retail and apparel focus
Allied Industrial Partners
Private Equity
Houstonhttps://alliedindustrialpartners.com/WasteEliminator, Wall Recycling$2-25MIndustrials, infrastructure
Altamont Capital
Private Equity
Palo Alto, CAhttps://www.altamontcapital.com/Nutrition 101Mid market PE firm
Alterna Equity Partners
Private Equity
Miami, FLhttps://alternaequitypartners.com/Bulk Express Transport$5-20M< $10MMid market US based companies
Amberjack Capital
Private Equity
Houston, TXhttps://www.amberjackcapital.com/Best TrashIndustrials
AP Ventures
Venture Capital
Londonhttps://apventures.com/Aether FuelsDecarbonization
Aperion Management
Private Equity
Bend, ORhttps://aperionmgt.com/LJP Waste Solutions, Stella Environmental$3-20MIndustrials, fragmented industries
Apollo
Private Equity
NYChttps://www.apollo.com/esg-corporate-social-responsibility/esg-reporting-and-policyAccent Wire, ArconicImpact fund focused on sustainability
Ara Partners
Private Equity
Houstonhttps://www.arapartners.com/portfolioBlue Whale Materials, Circulus, Divertlarge scale decarbonization opportunities
At One Ventures
Venture Capital
San Franciscohttps://www.atoneventures.com/Cruz FoamDeep tech regenerative series A
Atlas Holdings
Private Equity
Greenwich, CThttps://www.atlasholdingsllc.com/Crown Paper GroupManufacturing, paper, chemicals
Audax
Private Equity
Bostonhttps://www.audaxprivateequity.com/portfolio48Forty, Liquid Environmental
August
Venture Capital
Menlo Park, CAhttps://www.augustcap.com/Compology
Aurora Capital
Private Equity
Los Angeles, CAhttps://www.auroracap.com/Curtis Bay, VLS Environmental, Sharps Compliance$50-300MIndustrial, services, tech-enabled middle market
Autodesk Foundation
Impact Investor
San Franciscohttps://www.autodesk.org/nth cycle, Vartega, Closed Loop Early stage impact fund
Azimuth
Private Equity
Menlo Park, CAhttps://navigatingenergy.com/H CycleEnergy transition
B Capital Group
Venture Capital
Los Angeleshttps://www.bcapgroup.com/curbwasteEarly stage VC with BCG as partner
Backstage Capital
Venture Capital
Los Angeleshttps://backstagecapital.com/GoodrUnderrepresented founders
BDev Ventures
Venture Capital
Mountain View, CAhttps://www.bdevventures.com/RecyclopsUp to $3MB2B tech companies
Beaconhouse Capital
Private Equity
Oakbrook Terrace, ILhttps://www.beaconhousecapital.com/Alterra, Carbon Polymers
Benhamou Global Ventures
Venture Capital
Menlo Park, CAhttps://benhamouglobalventures.com/Everest LabsSeeks cross border investments
Blue Sage Capital
Private Equity
Ausin, TXhttps://www.bluesage.com/Frontier Waste Solutions$20-40M$4-15MMiddle market family owned companies
Bonhill Investments
Private Equity
Charlotte, NChttps://www.bonhillcapital.com/WasteZero$2-$20M1MLower middle market, Southeast US
bp ventures
Venture Capital
Houstonhttps://www.bp.com/en/global/bp-ventures/about/our-focus.htmlWasteFuel$0Carbon management and alt fuels
Breakthrough Energy
Impact Investor
San Franciscohttps://www.breakthroughenergy.org/Circ, Sortera Alloys$0Bill Gates venture fund investing in sustainable game changers
Broadview Group Holdings
Private Equity
St. Louis, MOhttps://www.broadviewgroup.com/Certified Waste Solutions$15-75M$3-20MLong term, middle market
BTG Pactual
Private Equity
NYChttps://www.btgstratcap.com/Evergreen Environmental, Unified Disposal Partners$25-150MAsset oriented businesses
Cardsound Capital
Private Equity
Denverhttps://cardsoundcapital.com/Circ, Tersus SolutionsB corps in the consumer, tech, real estate sectors
Carr's Hill Partners
Private Equity
New Orleans, LAhttps://www.carrshillpartners.com/Arrow Waste$5-30M$3-15MInvestor in industrials in southern US
Cemex Ventures
Venture Capital
Monterrey, MXhttps://www.cemexventures.com/portfolio/ArqliteConstruction technology startups
Chrysalix
Venture Capital
Vancouverhttps://www.chrysalix.com/Sortera AlloysIndustrial solutions
Circulate Capital
Venture Capital
Singaporehttps://www.circulatecapital.com/CircEnding plastic waste, mostly in Asia
Citigroup Impact Fund
Venture Capital
NYChttps://www.citigroup.com/global/our-impact/strengthening-community/citi-impact-fundRTSTriple bottom line, DEI
Clearlake
Private Equity
Los Angeleshttps://clearlake.com/portfolio/AMCS
Clairvest Group
Private Equity
Torontohttps://www.clairvest.com/Boston Carting, Arrowhead Environmental, DTG Recycling, Winter Bros,$25-100M$10-50MFragmented industries, recurring revenue
Closed Loop Partners
Venture Capital
NYChttps://www.closedlooppartners.com/funds/closed-loop-venture-fund/Amp Robotics, Balcones, Sims, Single Stream Recyclers, Retrievr, HomeBiogas, Renewal Workshop, SolarCycleUp to $500KSustainability focused startups impacting supply chain and reuse of materials
Coalesce Capital
Private Equity
NYChttps://coalescecap.com/Miller EnvironmentalInfra, Logistics, Facility Services
Collab Capital
Venture Capital
Atlantahttps://collab.capital/GoodrBlack founders
Collaborative Fund
Venture Capital
NYChttps://www.collaborativefund.com/Protein EvolutionRecent fund focused on moving climate innovation
Conexus VC
Venture Capital
Saskatchewanhttps://www.conexusventurecapital.ca/our-funds/cvc-fund-2/Prairie RoboticsTech companies in Canadian prairies
Cove Fund
Venture Capital
Irvine, CAhttps://www.covefund.com/Onsite Waste Technologies$250k-1MSoCal based startups only.
CVF Capital
Private Equity
Davis, CAhttps://cvfcapitalpartners.com/Pioneer Recycling$3-15M$10M-100MMiddle market Western US
Doral Tech Ventures
Venture Capital
Israelhttps://doral-tech.com/Aether Fuels
Eagle River Capital
Private Equity
Meeker, COhttps://www.eaglerivercap.com/homeAt Your Disposal, Eagle River Waste, Home Builders' SupplyRocky mountain waste company acquisitions
Eclipse Ventures
Venture Capital
Palo Alto, CAhttps://eclipse.vc/Circular.coVC firm focused on industrials
Ecosystem Integrity Fund (EIF)
Venture Capital
San Franciscohttps://eif.vc/TrashieSustainability investor
Energy Capital Partners
Private Equity
Summit, NJhttps://www.ecpgp.com/biffa, Wheelabrator, Liberty TireEnergy, renewables, environmental infra
EQT
Private Equity
Swedenhttps://eqtgroup.com/private-capital/private-equity/Reworld, AMCS, Heritage EnvironmentalIndustrials and Healthcare
EXI Investments
Private Equity
https://exipartners.com/Certified Waste SolutionsSmall and mid size industrial
Expedition Capital Partners
Private Equity
Chicago, ILhttps://www.expedition-partners.com/Waste Harmonics, BP Env Partners, >$2MLower and middle market
Falfurrias Capital
Private Equity
Charlotte, NChttps://falfurriascapital.com/Waste DiveMiddle market focus
Fifth Wall
Venture Capital
NYChttps://fifthwall.com/Roadrunner WM, SolarCycle
Foothill Ventures
Venture Capital
Palo Alto, CAhttps://www.foothill.ventures/Aether Fuels, Ascend Elements,Life science, deep tech
Freeman Spogli
Private Equity
Los Angeles, CAhttps://www.freemanspogli.com/Kamps Pallets$75M-300M$10-75MDistribution and retail
G2 Venture Partners
Venture Capital
San Franciscohttps://www.g2vp.com/Smarter Sorting, OptoroVC focused on sustainability; Kleiner Perkins offshoot
Galway Sustainable Capital
Private Equity
Washington DChttps://galwaysustainable.com/Central Coast Worm Farm
Generate Capital
Venture Capital
NYChttps://generatecapital.com/Stormfisher
GenX360
Private Equity
NYChttps://gennx360.com/portfolioMiller Environmental$50-500M$5-50MMid market industrial and business services
GI Partners
Private Equity
San Franciscohttps://www.gipartners.com/Valet Livingup to $1.5Bup to $2BFocus on services, IT, infra
Gratitude Railroad
Venture Capital
Park Cityhttps://gratituderailroad.com/Goodr, Atlas Organics, Loliware, Imperfect Foods, Renewal Workshop250K-2M~$1MCollab investor with other impact investors
Green Rock Energy Partners
Private Equity
NYChttps://www.greenrockep.com/Waste to energy, RNG
Gryphon Investors
Private Equity
San Franciscohttps://www.gryphon-inv.com/Windriver Environmental$50-500M<$80MMiddle Market
Hampstead Park Capital
Private Equity
Greenwich, CThttp://www.hampsteadparkcapital.com/Quest Resources, PureCycleFocus on environmental, infra and electrification
Harvest Capital
Private Equity
NYChttps://www.harvestpartners.com/private-equityValet Living$30-300M
Heartwood Partners
Private Equity
Norwalk, CThttps://heartwoodpartners.com/Alpha Omega Recycling, AmlonOwner operated businesses, specialty chemicals
Helena
Impact Investor
Los Angeleshttps://helena.org/Cruz FoamFunds grand ideas
Helium-3 Ventures
Venture Capital
NYChttps://www.helium-3ventures.comPosh RoboticsSustainability and general VC
HG Ventures
Venture Capital
Indianapolishttps://hgventures.com/SolarCycle
HIG Private Equity
Private Equity
Miamihttps://higprivateequity.com/about/AERC, Wastequip, Sustana$50M-1BIndustrial and service businesses
Hyde Park Angels
Venture Capital
Chicagohttps://hpa.vc/RheaplyAngel investment group in Chicago area
I2BF
Venture Capital
NYChttps://www.i2bf.com/Rematter, HaulerHero
I Squared Capital
Private Equity
Miamihttps://isquaredcapital.com/VLS EnvironmentalEnvironmental, energy and infra
Innovations for Impact
Impact Investor
https://innovationsforimpact.com/Novoloop, GoodrImpact investment firm
Ironwood Capital
Private Equity
Avon, CThttps://ironwoodcap.com/Boston Carting, Oakridge Waste, LRS, Pete&Pete, Denali Water Solutions, Gold Medal Environmental, Red River Waste, Action Environmental, City Carting, Advanced Recycilng Systems, Curtis Bay Energy, Lewis Clark Recycling, Interstate Waste Services, VLS Recovery$10-30M$4-25MSignificant player in mid market environmental services
JetBlue Ventures
Venture Capital
San Franciscohttps://www.jetblueventures.com/Aether FuelsTravel and leisure
JF Lehman & Co
Private Equity
NYChttps://www.jflpartners.com/Lone Star Disposal, Northstar Group, Heritage Crystal Clean$50-350M$10-75MMiddle market aerospace and environmental investor
Kapok Partners
Private Equity
Chicagohttps://kapokpartners.com/$10-50M$2-10MEnvironmental services, waste, recycling, organics
Kinderhook
Private Equity
NYChttps://www.kinderhook.com/Capital Waste Services, Circon, EcoSouth, Gold Metal Environmental, Live Oak EnvironmentalPE firm heavily invested in environmental
Kruckeberg Industries
Private Equity
Blooming Prairie, MNhttps://www.kruckebergindustries.com/Kruckeberg ServicesPE firm with roots in MN
L'Attitude Ventures
Venture Capital
San Diego, CAhttps://lat.vc/Remoov$.2-2MVC funding latinos in US
Larson Lam Climate Change Foundation
Impact Investor
https://llccf.org/H CycleScaling climate solutions
Lattice Capital
Venture Capital
NYChttps://www.latticeimpact.com/Compost CrewVC and debt for companies seeking to solve climate crisis
Laurel Mountain Partners
Private Equity
Pittburgh, PAhttp://www.laurelmountain.com/index.aspxLewis Clark Recycling, Liberty Waste, Liberty Tire Recycling, DumpsterMarket, Pro Disposal, Chester WTE, various landfillsLeading environmental and waste investor
Line 5 Capital
Private Equity
Nashville, TNhttps://www.line5capital.com/Engineered Recycling Systems$10-50M$2-7MSmall cap in SE
littlejohn & co
Private Equity
Greenwich, CThttps://littlejohnllc.com/Strategic Materials, Interstate Waste Services, CleanEarth$50-250M$100-800MWide scope of investments for PE and debt
lowercarbon capital
Venture Capital
SFhttps://lowercarboncapital.com/Urban Machine
Macquarie
Private Equity
Australiahttps://www.macquarie.com/au/en/about/company/macquarie-asset-management.htmlLRS, GreenWaste, DTG, Coastal
Maniv
Venture Capital
NYChttps://www.maniv.com/CircularDecarbonization
Mission Point Partners
Impact Investor
Westport, CThttp://mppgrp.com/Divert, Refed
Mollitiam Holdings
Private Equity
Floridahttps://www.mollitiam.holdings/Whitecap WasteMiddle market transportation and waste.
Morado Ventures
Venture Capital
Sunnyvale, CAhttps://www.moradoventures.com/Everest LabsVC looking at AI and robotics
Mucker Capital
Venture Capital
Santa Monica, CAhttps://www.mucker.com/curbwasteSeed investor for software
NEC Orchestrating Future Fund
Venture Capital
Tokyohttps://www.nec.com/en/press/202112/global_20211217_01.htmlEverest Labs5G/6G, Digital Government/Digital Finance, Smart City, DX, Healthcare and Life Sciences, and Carbon Neutral
Neotribe
Venture Capital
Menlo Park, CAhttps://www.neotribe.vc/portfolioBinItInnovative companies that stretch the imagination
New Enterprise Associates
Venture Capital
Chevy Chase, MDhttps://www.nea.com/Glacier RoboticsGlobal VC