| $350,000–1 million | JACKEENS INC | Boston, MA | Eastern Bank |
| $150,000–350,000 | JACKEENS,INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | JACKRABBIT DESIGN INC. | Milton, MA | Eastern Bank |
| $150,000–350,000 | JACOLO LLC | Stoneham, MA | Eastern Bank |
| $350,000–1 million | JAMAICA PLAIN NEIGHBORHOOD DEVELOPMENT CORPORATION | JAMAICA PLAIN, MA | Eastern Bank |
| $350,000–1 million | JAMES A KILEY CO | SOMERVILLE, MA | Eastern Bank |
| $150,000–350,000 | JAMES L. MCKEOWN BOYS & GIRLS CLUB OF WOBURN | WOBURN, MA | Eastern Bank |
| $150,000–350,000 | JAMES L. MCKEOWN BOYS & GIRLS CLUB OF WOBURN INC. | Woburn, MA | Eastern Bank |
| $150,000–350,000 | JAMES M MCLAUGHLIN INC | Lexington, MA | Eastern Bank |
| $2–5 million | JAMES T LYNCH CONSTRUCTI | Andover, MA | Eastern Bank |
| $1–2 million | JAMES T. LYNCH CONSTRUCTION CO., INC. | ANDOVER, MA | Eastern Bank |
| $350,000–1 million | JANNELL MOTORS INC | HANOVER, MA | Eastern Bank |
| $150,000–350,000 | JARVIS APPLIANCES INC. | Wellesley, MA | Eastern Bank |
| $350,000–1 million | JAY EL ENTERPRISE ROCKAF | Salem, MA | Eastern Bank |
| $150,000–350,000 | JAY EL ENTERPRISES | SALEM, MA | Eastern Bank |
| $150,000–350,000 | JAYBIRD & MAIS INC | Lawrence, MA | Eastern Bank |
| $150,000–350,000 | JAYBIRD & MAIS, INC. | LAWRENCE, MA | Eastern Bank |
| $150,000–350,000 | JCM MANAGEMENT CO. INC | MANCHESTER, NH | Eastern Bank |
| $350,000–1 million | JDI SENIOR CARE INC | MANCHESTER, NH | Eastern Bank |
| $150,000–350,000 | JEAN'S WATERPROOFING, INC. | AUBURN, ME | Eastern Bank |
| $150,000–350,000 | JEFFRAFF ENTERPRISES, INC. | Sudbury, MA | Eastern Bank |
| $150,000–350,000 | JEFFRAFF ENTERPRISES, INC. | SUDBURY, MA | Eastern Bank |
| $150,000–350,000 | JEREZ LLC | SAUGUS, MA | Eastern Bank |
| $150,000–350,000 | JETTY LLC | Quincy, MA | Eastern Bank |
| $150,000–350,000 | JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTO | NEWTON CENTER, MA | Eastern Bank |
| $150,000–350,000 | JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTO | Newton, MA | Eastern Bank |
| $350,000–1 million | JEWISH COMMUNITY CENTER OF THE NORTH SHORE INC | MARBLEHEAD, MA | Eastern Bank |
| $1–2 million | JEWISH COMMUNITY CENTERS OF GREATER BOSTON INC. | Newton Center, MA | Eastern Bank |
| $2–5 million | JEWISH COMMUNITY CENTERS OF GREATER BOSTON, INC. | NEWTON CENTER, MA | Eastern Bank |
| $150,000–350,000 | JEWISH COMMUNITY CENTRE | Sharon, MA | Eastern Bank |
| $150,000–350,000 | JEWISH COMMUNITY CENTRE OF SHARON, INC. | SHARON, MA | Eastern Bank |
| $1–2 million | JEWISH VOCATIONAL SERVICE INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | JIM'S RESTAURANT GROUP LLC | North Reading, MA | Eastern Bank |
| $150,000–350,000 | JIMOTHY LLC | South Boston, MA | Eastern Bank |
| $150,000–350,000 | JIMS RESTAURANT GROUP LLC | NORTH READING, MA | Eastern Bank |
| $150,000–350,000 | JJ SULLIVAN PLUMBING & HEATING CO INC | SOMERVILLE, MA | Eastern Bank |
| $150,000–350,000 | JL NEWTON INC | NEWTON CENTER, MA | Eastern Bank |
| $150,000–350,000 | JNJ SACCA INC. | ARLINGTON, MA | Eastern Bank |
| $150,000–350,000 | JOB OPTIONS, INC. | LYNN, MA | Eastern Bank |
| $150,000–350,000 | JOHN A CARUSO LANDSCAPING INC | BURLINGTON, MA | Eastern Bank |
| $350,000–1 million | JOHN B CRUZ CONSTRUCTION | Roxbury, MA | Eastern Bank |
| $350,000–1 million | JOHN B. CRUZ CONSTRUCTION CO., INC. | ROXBURY, MA | Eastern Bank |
| $150,000–350,000 | JOHN BERTRAM HOUSE | SALEM, MA | Eastern Bank |
| $350,000–1 million | JOHN BROWN & SONS INC | WEARE, NH | Eastern Bank |
| $150,000–350,000 | JOHN CARUSO LANDSCAPING | Burlington, MA | Eastern Bank |
| $150,000–350,000 | JOHN CERASUOLO CO., INC. BAYS 38 & 39 | CHELSEA, MA | Eastern Bank |
| $150,000–350,000 | JOHN HOADLEY AND SONS, INC. | ROCKLAND, MA | Eastern Bank |
| $150,000–350,000 | JOHN J SOMERS CORP | Boston, MA | Eastern Bank |
| $150,000–350,000 | JOHN K ARGEROS AND DONALD E PLOURDE | PEABODY, MA | Eastern Bank |
| $150,000–350,000 | JOHN PICARIELLO | Salem, MA | Eastern Bank |
| $350,000–1 million | JOHNSON SHEET METAL CO, INC. | HOLBROOK, MA | Eastern Bank |
| $350,000–1 million | JOMAR DISTRIBUTORS | WATERTOWN, MA | Eastern Bank |
| $350,000–1 million | JONATHAN SPROUTS INC | MARION, MA | Eastern Bank |
| $150,000–350,000 | JORDAN KAHN CO., INC | AUBURNDALE, MA | Eastern Bank |
| $150,000–350,000 | JOSEPH GANN JEWELERS LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | JOSEPH GANN JEWELERS LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | JOSEPH SLIFKA CENTER FOR JEWISH LIFE AT YALE | New Haven, CT | Eastern Bank |
| $150,000–350,000 | JOSEPH'S INDUSTRIAL CATERING CORP. | WOBURN, MA | Eastern Bank |
| $150,000–350,000 | JOSEPH'S INDUSTRIAL CATERING CORP. | Woburn, MA | Eastern Bank |
| $5–10 million | JOSLIN DIABETES CENTER, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | JOURNEY FORWARD INC | Canton, MA | Eastern Bank |
| $150,000–350,000 | JOURNEY FORWARD, INC. | CANTON, MA | Eastern Bank |
| $150,000–350,000 | JOYFUL GARDEN LLC | Watertown, MA | Eastern Bank |
| $150,000–350,000 | JOYFUL GARDEN LLC | WATERTOWN, MA | Eastern Bank |
| $2–5 million | JP PEST SERVICES, LLC | MILFORD, NH | Eastern Bank |
| $5–10 million | JRM HAULING & RECYCLING SERVICES INC | PEABODY, MA | Eastern Bank |
| $350,000–1 million | JRMM INC | Melrose, MA | Eastern Bank |
| $150,000–350,000 | JRMM, INC | MELROSE, MA | Eastern Bank |
| $150,000–350,000 | JSA INC | Portsmouth, NH | Eastern Bank |
| $150,000–350,000 | JSA INC | PORTSMOUTH, NH | Eastern Bank |
| $350,000–1 million | JULIAN CRANE AND EQUIPMENT CORPORATION | Hingham, MA | Eastern Bank |
| $150,000–350,000 | JUMP START PHYSICAL THER | Natick, MA | Eastern Bank |
| $150,000–350,000 | JUMP START PHYSICAL THERAPY, INC. | NATICK, MA | Eastern Bank |
| $2–5 million | JVT ADVISORS | ANDOVER, MA | Eastern Bank |
| $150,000–350,000 | K AND M COMMUNICATIONS C | West Bridgewater, MA | Eastern Bank |
| $150,000–350,000 | K AND M COMMUNICATIONS CORP. | WEST BRIDGEWATER, MA | Eastern Bank |
| $150,000–350,000 | K-9 MERCANTILE PROTECTION INC | PLYMOUTH, MA | Eastern Bank |
| $150,000–350,000 | K-9 MERCANTILE PROTECTION INC | Plymouth, MA | Eastern Bank |
| $150,000–350,000 | K. M. F. HOSPITALITY INC. | Boston, MA | Eastern Bank |
| $150,000–350,000 | K. M. F. HOSPITALITY, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | K2 MANAGEMENT INC | Boston, MA | Eastern Bank |
| $150,000–350,000 | K2 MANAGEMENT INC | WALTHAM, MA | Eastern Bank |
| $150,000–350,000 | KAASHI LLC. | FRAMINGHAM, MA | Eastern Bank |
| $150,000–350,000 | KAHN CHILD CARE LLC | Saugus, MA | Eastern Bank |
| $150,000–350,000 | KAHN CHILD CARE, LLC | SAUGUS, MA | Eastern Bank |
| $1–2 million | KAIROS SURGICAL INC | WESTBOROUGH, MA | Eastern Bank |
| $150,000–350,000 | KAISER YACHTS, LLC | MATTAPOISETT, MA | Eastern Bank |
| $1–2 million | KAIZEN CORPORATION | Newton, MA | Eastern Bank |
| $5–10 million | KAMCO SUPPLY CORP. OF BOSTON | WOBURN, MA | Eastern Bank |
| $350,000–1 million | KAPLAN CORPORATION | BROOKLINE, MA | Eastern Bank |
| $350,000–1 million | KAPLAN CORPORATION | Brookline, MA | Eastern Bank |
| $150,000–350,000 | KATHY SEVIGNY | Bedford, NH | Eastern Bank |
| $150,000–350,000 | KDD DONUTS INC | LYNN, MA | Eastern Bank |
| $1–2 million | KECHES LAW GROUP, P.C. | TAUNTON, MA | Eastern Bank |
| $150,000–350,000 | KEITH'S TREE SERVICE, INC | WAKEFIELD, MA | Eastern Bank |
| $1–2 million | KELLY'S ROAST BEEF, INC. | SAUGUS, MA | Eastern Bank |
| $150,000–350,000 | KENNEDY & VIOLICH ARCHIT | Boston, MA | Eastern Bank |
| $150,000–350,000 | KENNEDY & VIOLICH ARCHITECTURE LTD. | ROXBURY, MA | Eastern Bank |
| $350,000–1 million | KENNEDY BROS PHYS THERAPY INC | BOSTON, MA | Eastern Bank |
| $350,000–1 million | KENNEDY BROTHERS PHYSICAL THERAPY INC | Boston, MA | Eastern Bank |