By customer
- MACH International
- macys.com
- Maddocks Systems Inc.
- Magasin du Nord
- Magnezit
- Maharashtra State Electricity Transmission Company Limited
- Mahesh Sahakari Bank Ltd., Pune
- MAIER
- Mainline
- Mainova AG
- Major fashion retailer
- Major Insurer
- Major International Telecommunications Company
- Major Oil and Gas Producer
- Manatee County School District
- Mannheimer
- Manpower
- MAQUET GmbH & Co. KG
- Marist College
- Market6 Inc.
- MarketCast
- Martin's Point Health Care
- Marwell Wildlife
- Maschinenfabrik Reinhausen
- Mayflex
- Mayo Clinic
- McCormick and Schmick’s Restaurants
- McCormick & Company Inc.
- McGregor Industries
- McKesson Corporation
- McLEOD RUSSEL INDIA LIMITED
- MCS (Mortgage Contracting Services)
- MDS Pharma Services
- MEAG
- Mecklenburg-Vorpommern State Police
- MedeAnalytics
- Media Innovation Group (MIG)
- MediaMath
- Medius AB
- Medway Youth Trust
- Meka Pro Oy
- Melbourne Health
- Memorial Health System
- Memphis Police Department
- Mentoring Minds
- Merck Sharp & Dohme
- Mercury Medical
- Merkle
- meteolytix GmbH
- METRO Group
- Metropolitan Community College
- Metro Spinal Clinic
- MEVA Schalungs-Systeme (MEVA)
- MG Kailis
- Miami-Dade County
- Miami-Dade Police Department
- Michigan Municipal League
- MidAmerican Energy
- Midlands Co-operative Society Ltd
- Miele Ges.m.b.H
- Milupa Österreich
- Mindray
- Mineralbrunnen Überkingen
- Ministry for the Environment, Rural and Marine Affairs
- Misys
- Mitel
- Mitsubishi Motors Australia Limited
- Mizrahi Tefahot Bank
- Mobile County (Alabama) Public Schools
- Mobile County Public Schools
- MoneyGram International
- Montefarmaco OTC
- Moosejaw Mountaineering
- Moran Health Care Group
- Morgan Sindall Group plc