| $350,000–1 million | NORTH END MOTORS INC | CANTON, MA | Eastern Bank |
| $350,000–1 million | NORTH POINT MARINE & INDUSTRIAL INC. | Portsmouth, NH | Eastern Bank |
| $350,000–1 million | NORTH SHORE ANIMAL HOSPI | Lynn, MA | Eastern Bank |
| $350,000–1 million | NORTH SHORE ANIMAL HOSPITAL, INC. | LYNN, MA | Eastern Bank |
| $150,000–350,000 | NORTH SHORE AUTO LLC | DANVERS, MA | Eastern Bank |
| $150,000–350,000 | NORTH SHORE COMMUNITY DEVELOPMENT COALITION, INC. | SALEM, MA | Eastern Bank |
| $150,000–350,000 | NORTH SHORE COUNSELING CENTER, INC. | BEVERLY, MA | Eastern Bank |
| $350,000–1 million | NORTH SHORE EAR, NOSE AND THROAT ASSOCIATES | DANVERS, MA | Eastern Bank |
| $350,000–1 million | NORTH SHORE ENT ASSOCIAT | Danvers, MA | Eastern Bank |
| $350,000–1 million | NORTH SHORE PEDIATRICS P.C. | Danvers, MA | Eastern Bank |
| $150,000–350,000 | NORTH SHORE PHYSICAL THE | Marblehead, MA | Eastern Bank |
| $150,000–350,000 | NORTH SHORE PHYSICAL THERAPY ASSOCIATES, INC. | MARBLEHEAD, MA | Eastern Bank |
| $150,000–350,000 | NORTH STAR RENTAL SYSTEMS INC | Somerville, MA | Eastern Bank |
| $150,000–350,000 | NORTH STAR RENTAL SYSTEMS, INC. | SOMERVILLE, MA | Eastern Bank |
| $350,000–1 million | NORTH SUBURBAN CARDIOLOGY ASSOC PC | Stoneham, MA | Eastern Bank |
| $350,000–1 million | NORTH SUBURBAN CARDIOLOGY ASSOCIATES, P.C. | STONEHAM, MA | Eastern Bank |
| $350,000–1 million | NORTHEAST ADDICTIONS TREATMENT CENTER LLC | QUINCY, MA | Eastern Bank |
| $1–2 million | NORTHEAST AUTOMATIC SPRI | Kingston, MA | Eastern Bank |
| $1–2 million | NORTHEAST AUTOMATIC SPRINKLER CO, INC | KINGSTON, MA | Eastern Bank |
| $150,000–350,000 | NORTHEAST CLEAN ENERGY COUNCIL INC | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | NORTHEAST FIRE SYSTEMS I | Malden, MA | Eastern Bank |
| $150,000–350,000 | NORTHEAST FIRE SYSTEMS, INC. | MALDEN, MA | Eastern Bank |
| $150,000–350,000 | NORTHEAST GASTROENTEROLOGY ASSOCIATES P.C. | Salem, NH | Eastern Bank |
| $150,000–350,000 | NORTHEAST GASTROENTEROLOGY ASSOCIATES, P.C. | SALEM, NH | Eastern Bank |
| $150,000–350,000 | NORTHEAST INTEGRATION LLC | Lee, NH | Eastern Bank |
| $1–2 million | NORTHEAST NURSERY INC | PEABODY, MA | Eastern Bank |
| $150,000–350,000 | NORTHEAST PLASTICS, INC. | WAKEFIELD, MA | Eastern Bank |
| $350,000–1 million | NORTHEAST UROLOGIC SURGERY P.C. | North Andover, MA | Eastern Bank |
| $350,000–1 million | NORTHEAST UROLOGIC SURGERY, P.C. | NORTH ANDOVER, MA | Eastern Bank |
| $150,000–350,000 | NORTHEASTERN NONWOVENS I | Rochester, NH | Eastern Bank |
| $150,000–350,000 | NORTHEASTERN NONWOVENS INC | ROCHESTER, NH | Eastern Bank |
| $350,000–1 million | NORTHERN BUSINESS MACHINES INC. | Burlington, MA | Eastern Bank |
| $1–2 million | NORTHERN BUSINESS MACHINES, INC. | BURLINGTON, MA | Eastern Bank |
| $350,000–1 million | NORTHERN LIGHT MOTION PICTURES INC. | Allston, MA | Eastern Bank |
| $350,000–1 million | NORTHERN LIGHT MOTION PICTURES INC. | ALLSTON, MA | Eastern Bank |
| $350,000–1 million | NORTHERN PEABODY LLC | Manchester, NH | Eastern Bank |
| $1–2 million | NORTHERN PEABODY, LLC | MANCHESTER, NH | Eastern Bank |
| $350,000–1 million | NORTHSIDERS LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | NORTHSIDERS, LLC | BOSTON, MA | Eastern Bank |
| $350,000–1 million | NORTHSTAR PROJECT REAL ESTATE SERVICES, LLC | CAMBRIDGE, MA | Eastern Bank |
| $150,000–350,000 | NORWOOD ELECTRIC INC. | PEABODY, MA | Eastern Bank |
| $150,000–350,000 | NOVALEX BIOTECH RESOURCES, LLC | REVERE, MA | Eastern Bank |
| $1–2 million | NURTURY, INC. | ROXBURY, MA | Eastern Bank |
| $150,000–350,000 | NWASH LLC | Boston, MA | Eastern Bank |
| $2–5 million | O'CONNOR & DREW PC | BRAINTREE, MA | Eastern Bank |
| $150,000–350,000 | O'CONNOR CARNATHAN AND M | Burlington, MA | Eastern Bank |
| $150,000–350,000 | O'CONNOR, CARNATHAN AND MACK LLC | BURLINGTON, MA | Eastern Bank |
| $150,000–350,000 | O'LOLINGSIGH CORPORATION | SOMERVILLE, MA | Eastern Bank |
| $150,000–350,000 | O'NEILL MASONRY INC | Braintree, MA | Eastern Bank |
| $150,000–350,000 | O'NEILL MASONRY, INC. | WEYMOUTH, MA | Eastern Bank |
| $150,000–350,000 | O'SULLIVAN ARCHITECTS IN | Reading, MA | Eastern Bank |
| $150,000–350,000 | O'SULLIVAN ARCHITECTS, INC. | READING, MA | Eastern Bank |
| $150,000–350,000 | OASIS DAY SPA INC | S Weymouth, MA | Eastern Bank |
| $150,000–350,000 | OASIS DAY SPA, INC. | SOUTH WEYMOUTH, MA | Eastern Bank |
| $350,000–1 million | OASIS HEALTH & SPORTS CE | Manchester, NH | Eastern Bank |
| $350,000–1 million | OASIS HEALTH AND SPORTS CENTER INC. | MANCHESTER, NH | Eastern Bank |
| $150,000–350,000 | OCEAN TRANSPORTATION | Lynn, MA | Eastern Bank |
| $150,000–350,000 | OCEAN TRANSPORTATION SERVICES, INC. | LYNN, MA | Eastern Bank |
| $1–2 million | OCEANAIR INC | REVERE, MA | Eastern Bank |
| $350,000–1 million | OFF THE VINE CATERING LLC | Norwood, MA | Eastern Bank |
| $150,000–350,000 | OFF THE VINE CATERING, LLC | NORWOOD, MA | Eastern Bank |
| $150,000–350,000 | OI INFUSION SERVICES, LLC | PORTSMOUTH, NH | Eastern Bank |
| $150,000–350,000 | OISHII INC | Boston, MA | Eastern Bank |
| $150,000–350,000 | OISHII, INC. | Boston, MA | Eastern Bank |
| $350,000–1 million | OLD ANDOVER RESTAURANT I | Burlington, MA | Eastern Bank |
| $350,000–1 million | OLD ANDOVER RESTAURANT, INC. | ANDOVER, MA | Eastern Bank |
| $350,000–1 million | OLD ARLINGTON RESTAURANT | Burlington, MA | Eastern Bank |
| $350,000–1 million | OLD ARLINGTON RESTAURANT, INC. | ARLINGTON, MA | Eastern Bank |
| $150,000–350,000 | OLD COLONY CABINETS, INC. | STOUGHTON, MA | Eastern Bank |
| $150,000–350,000 | OLD LEXINGTON RESTAURANT | Burlington, MA | Eastern Bank |
| $150,000–350,000 | OLD LEXINGTON RESTAURANT, INC. | LEXINGTON, MA | Eastern Bank |
| $350,000–1 million | OLD SAUGUS RESTAURANT IN | Burlington, MA | Eastern Bank |
| $350,000–1 million | OLD SAUGUS RESTAURANT, INC. | SAUGUS, MA | Eastern Bank |
| $350,000–1 million | OLD SHREWSBURY RESTAURAN | Shrewsbury, MA | Eastern Bank |
| $350,000–1 million | OLD SHREWSBURY RESTAURANT, INC. | SHREWSBURY, MA | Eastern Bank |
| $350,000–1 million | OLD WALTHAM RESTAURANT I | Burlington, MA | Eastern Bank |
| $150,000–350,000 | OLD WALTHAM RESTAURANT, INC. | WALTHAM, MA | Eastern Bank |
| $150,000–350,000 | OLDWAYS PRESERVATION & EXCHANGE TRUST | Boston, MA | Eastern Bank |
| $150,000–350,000 | OLDWAYS PRESERVATION AND EXCHANGE | Boston, MA | Eastern Bank |
| $150,000–350,000 | OLIVEIRAS ENTERPRISES CO | Everett, MA | Eastern Bank |
| $150,000–350,000 | OLIVEIRAS ENTERPRISES CORP | EVERETT, MA | Eastern Bank |
| $150,000–350,000 | OMNIPROPHIS CORPORATION | SCITUATE, MA | Eastern Bank |
| $150,000–350,000 | ONE FAMILY, INC | South Boston, MA | Eastern Bank |
| $150,000–350,000 | ONE HUNDRED SEVENTY-THREE MILK STREET INC. | Boston, MA | Eastern Bank |
| $150,000–350,000 | ONE HUNDRED SEVENTY-THREE MILK STREET, INC. | BOSTON, MA | Eastern Bank |
| $350,000–1 million | ONEVIEW COMMERCE | BOSTON, MA | Eastern Bank |
| $350,000–1 million | ONEVIEW COMMERCE INC | Boston, MA | Eastern Bank |
| $1–2 million | OPINION DYNAMICS CORPORATION | Waltham, MA | Eastern Bank |
| $150,000–350,000 | OPPED, INC | CHELSEA, MA | Eastern Bank |
| $1–2 million | OPTIKOS CORPORATION | WAKEFIELD, MA | Eastern Bank |
| $1–2 million | OPTIKOS CORPORATION | Wakefield, MA | Eastern Bank |
| $1–2 million | OPTIMUM BUILDING SYSTEMS | Litchfield, NH | Eastern Bank |
| $1–2 million | OPTIMUM BUILDING SYSTEMS, INC. | LITCHFIELD, NH | Eastern Bank |
| $150,000–350,000 | ORAL DESIGN BOSTON INC | Boston, MA | Eastern Bank |
| $150,000–350,000 | ORAL DESIGN BOSTON, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | ORANGE BLOSSOM INC | Cambridge, MA | Eastern Bank |
| $2–5 million | ORCHARD COVE INC. | Canton, MA | Eastern Bank |
| $150,000–350,000 | ORIGIN MIRCO, INC. | PORTSMOUTH, NH | Eastern Bank |
| $150,000–350,000 | ORTEZ CORPORATION, INC. | REVERE, MA | Eastern Bank |
| $1–2 million | ORTHOPAEDICS NORTHEAST P.C. | North Andover, MA | Eastern Bank |