M
- Mackenzie Cundhill Investment Management Ltd
- Mackenzie Financial Corp
- Macquarie Bank Ltd
- Madura Holding Ltd
- Maison Placements Canada
- Maitland Fund Services
- Majedie Investments Plc
- M&G Investment Management Ltd
- Man Financial Ltd
- Marathon Asset Management LP
- Mariner Fund
- Marret Asset Management
- Mars Asset Management
- Martin Currie Pacific Trust
- Martin Place Securities
- Massachusetts Mutual Life Insurance
- Massachusetts Pension Reserves Investment Trust
- Matterhorn Investment Management LLP
- Mau Capital Management
- MB Holding
- Mboweni Brothers Investment Holdings
- Mellon HBV Alternative Strategies LLC
- Merchants Trust PLC
- Merck Fink and Co
- Mercuria Energy Group
- Meridian Global Gold and Resources Fund
- Merrill Lynch
- Metinvest Holding LLC
- Metalinvest
- Metalloinvest
- Midas Income & Growth Trust plc
- Millennium Partners
- Millennium Wave Fund
- Millhouse Capital
- MineralFields Group
- Mineralogy Pty Ltd
- Mineral Securities Limited
- Mining House
- Minmet Plc Group
- Mirabaud Securities
- Mitsubishi Materials Corporation (MMC)
- Mizuho Corporate Bank
- MKM Longboat Multi-Strategy Master Fund
- MLP Investments Ltd
- Mohamed Ali Al-Amoudi
- Monks Investment Trust PLC
- Morgan Stanley
- Morley Fund Management
- Morumbi Resources
- MRI Trading
- MSG Investment Management
- MTO
- Murray Income Trust PLC
- Musicians Pension Fund
- Mutumwa Mawere
- MWB Capital
