| $150,000–350,000 | COLUMBUS CORPORATION | Winchester, MA | Eastern Bank |
| $150,000–350,000 | COLUMBUS CORPORATION | BOSTON, MA | Eastern Bank |
| $2–5 million | COMBINED JEWISH PHILANTHROPIES OF GREATER BOSTON, INC | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | COMMON IMPACT INC | Brooklyn, NY | Eastern Bank |
| $150,000–350,000 | COMMON IMPACT, INC. | BOSTON, MA | Eastern Bank |
| $350,000–1 million | COMMONWEALTH BUILDING IN | Quincy, MA | Eastern Bank |
| $350,000–1 million | COMMONWEALTH BUILDING, INC | QUINCY, MA | Eastern Bank |
| $350,000–1 million | COMMONWEALTH LAND TRUST, INC. | ROXBURY CROSSING, MA | Eastern Bank |
| $150,000–350,000 | COMMONWEALTH MEDICAL GROUP INC. | MELROSE, MA | Eastern Bank |
| $350,000–1 million | COMMONWEALTH WASTE TRANSPORTATION LLC | NORTH ANDOVER, MA | Eastern Bank |
| $350,000–1 million | COMMTANK, INC | WAKEFIELD, MA | Eastern Bank |
| $1–2 million | COMMUNITIES FOR PEOPLE | Boston, MA | Eastern Bank |
| $2–5 million | COMMUNITIES FOR PEOPLE,INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | COMMUNITY ART CENTER | CAMBRIDGE, MA | Eastern Bank |
| $150,000–350,000 | COMMUNITY ART CENTER INC | Cambridge, MA | Eastern Bank |
| $350,000–1 million | COMMUNITY CASH MANAGEMEN | Rochester, NH | Eastern Bank |
| $350,000–1 million | COMMUNITY CASH MANAGEMENT CORPORATION | ROCHESTER, NH | Eastern Bank |
| $350,000–1 million | COMMUNITY RESEARCH INITIATIVE OF NEW ENGLAND, INC. | CHARLESTOWN, MA | Eastern Bank |
| $150,000–350,000 | COMMUNITY YOUNG MENS CHR | Danvers, MA | Eastern Bank |
| $150,000–350,000 | COMPARE SUPERMARKETS, INC | LYNN, MA | Eastern Bank |
| $150,000–350,000 | COMPASS POINT RETIREMENT PLANNING, INC. | WAKEFIELD, MA | Eastern Bank |
| $150,000–350,000 | COMPASSIONATE CARE ALS I | Falmouth, MA | Eastern Bank |
| $350,000–1 million | COMPETITION DYNAMICS IN | Salem, MA | Eastern Bank |
| $350,000–1 million | COMPETITION DYNAMICS, INC. | SALEM, MA | Eastern Bank |
| $1–2 million | COMPLETE CLEANING CO | LYNN, MA | Eastern Bank |
| $150,000–350,000 | COMPUMACHINE INC | Danvers, MA | Eastern Bank |
| $150,000–350,000 | COMPUMACHINE INC | DANVERS, MA | Eastern Bank |
| $150,000–350,000 | CONCORD MARKET, LLC | Concord, MA | Eastern Bank |
| $350,000–1 million | CONCORD OB/GYN ASSOCIATES PC | Concord, MA | Eastern Bank |
| $150,000–350,000 | CONCUSSION LEGACY FOUNDATION INC | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CONGREGATION ADATH ISRAEL | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CONGREGATION KEHILLATH ISRAEL | BROOKLINE, MA | Eastern Bank |
| $150,000–350,000 | CONGREGATION KEHILLATH ISRAEL | Brookline, MA | Eastern Bank |
| $150,000–350,000 | CONGREGATION TEMPLE EMANUEL OF ANDOVER MASSACHUSETTS | Andover, MA | Eastern Bank |
| $150,000–350,000 | CONGREGATION TEMPLE EMANUEL OF ANDOVER, MASSACHUSETTS | ANDOVER, MA | Eastern Bank |
| $150,000–350,000 | CONGRESS STREET HOSPITAL | Salem, MA | Eastern Bank |
| $1–2 million | CONNECTED HOME CARE LLC | CONCORD, MA | Eastern Bank |
| $350,000–1 million | CONNECTED LIVING | QUINCY, MA | Eastern Bank |
| $350,000–1 million | CONOVER ADVERTISING CO. INC. | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CONSENSUS BUILDING INSTITUTE | CAMBRIDGE, MA | Eastern Bank |
| $1–2 million | CONSERVATION LAW FOUNDAT | Boston, MA | Eastern Bank |
| $1–2 million | CONSERVATION LAW FOUNDATION, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CONSISTENTLY CLEAN LLC | West Dennis, MA | Eastern Bank |
| $150,000–350,000 | CONSOLIDATED MARKETING SERVICE | SOMERVILLE, MA | Eastern Bank |
| $150,000–350,000 | CONSOLIDATED MARKETING SERVICES INC | Somerville, MA | Eastern Bank |
| $150,000–350,000 | CONSTRUCTION & TELECOMMUNICATION SERVICES INC | DANVERS, MA | Eastern Bank |
| $150,000–350,000 | CONSTRUCTION & TELECOMMUNICATION SERVICES INC | Danvers, MA | Eastern Bank |
| $2–5 million | CONSTRUCTION MANAGEMENT & BUILDERS, INC | Danvers, MA | Eastern Bank |
| $150,000–350,000 | CONSTRUCTION SPECIALTIES UNLIMITED INC. | MELROSE, MA | Eastern Bank |
| $350,000–1 million | CONTINENTAL RESTAURANT O | Saugus, MA | Eastern Bank |
| $150,000–350,000 | CONTINENTAL RESTAURANT OF SAUGUS, INC | SAUGUS, MA | Eastern Bank |
| $150,000–350,000 | CONTRACT SOURCES LIMITED | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CONTRACT SOURCES LTD | Boston, MA | Eastern Bank |
| $1–2 million | CONTROLLED ENVIRONMENT S | Mansfield, MA | Eastern Bank |
| $1–2 million | CONTROLLED ENVIRONMENT SYSTEMS, LLC | MANSFIELD, MA | Eastern Bank |
| $350,000–1 million | CONVERTIV | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CONVERTIV LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | CONWAY HOMER PC | Boston, MA | Eastern Bank |
| $150,000–350,000 | COOLIDGE CORNER THEATRE FOUNDATION, INC. | BROOKLINE, MA | Eastern Bank |
| $150,000–350,000 | COOPERATIVE RESERVE SUPPLY, INC. | NORTH BILLERICA, MA | Eastern Bank |
| $350,000–1 million | COPLEY MANAGEMENT & DEVELOPMENT CORP. | BOSTON, MA | Eastern Bank |
| $5–10 million | CORCORAN MANAGEMENT COMPANY, INC | BRAINTREE, MA | Eastern Bank |
| $350,000–1 million | COREY ASSISTED LIVING LLC | BRIGHTON, MA | Eastern Bank |
| $350,000–1 million | CORNELL ORTHOTICS & PROSTHETICS, INC. | BEVERLY, MA | Eastern Bank |
| $350,000–1 million | CORNELL ORTHOTICS AND PR | Beverly, MA | Eastern Bank |
| $150,000–350,000 | CORNER STOP EATERY INC | Cohasset, MA | Eastern Bank |
| $150,000–350,000 | CORNER STOP EATERY INC | COHASSET, MA | Eastern Bank |
| $150,000–350,000 | CORNERSTONE CONSTRUCTION | Woburn, MA | Eastern Bank |
| $350,000–1 million | CORNERSTONE CONSTRUCTION SERVICES, LLC | WOBURN, MA | Eastern Bank |
| $150,000–350,000 | CORNERSTONE ELECTRICAL SERVICES INC. | SALEM, NH | Eastern Bank |
| $150,000–350,000 | COROLLA CONTRACTING INC. | Winthrop, MA | Eastern Bank |
| $150,000–350,000 | COROLLA CONTRACTING, INC. | WINTHROP, MA | Eastern Bank |
| $2–5 million | COSTA FRUIT & PRODUCE | CHARLESTOWN, MA | Eastern Bank |
| $2–5 million | COSTA FRUIT & PRODUCE CO | Charlestown, MA | Eastern Bank |
| $150,000–350,000 | COTTAGE CAREGIVERS, LLC | HINGHAM, MA | Eastern Bank |
| $150,000–350,000 | COUGHLIN BETKE, LLP | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | COUGHLIN, RAINBOTH, MURPHY | PORTSMOUTH, NH | Eastern Bank |
| $150,000–350,000 | COURAGEOUS SAILING CENTE | Charlestown, MA | Eastern Bank |
| $150,000–350,000 | COURAGEOUS SAILING CENTER FOR YOUTH, INC. | CHARLESTOWN, MA | Eastern Bank |
| $150,000–350,000 | COURTYARD DONUTS INC | Medford, MA | Eastern Bank |
| $150,000–350,000 | COURTYARD DONUTS INC | MEDFORD, MA | Eastern Bank |
| $150,000–350,000 | CPZ INC | Nashua, NH | Eastern Bank |
| $150,000–350,000 | CPZ INC | NASHUA, NH | Eastern Bank |
| $150,000–350,000 | CRIMSON VENTURES LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | CRIMSON VENTURES LLC | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CRISTO REY BOSTON HIGH SCHOOL | Dorchester, MA | Eastern Bank |
| $350,000–1 million | CRISTO REY BOSTON HIGH SCHOOL, INC. | DORCHESTER, MA | Eastern Bank |
| $350,000–1 million | CROCKER ELECTRIC CO. INC. | QUINCY, MA | Eastern Bank |
| $350,000–1 million | CROCKER ELECTRICAL COMPA | Quincy, MA | Eastern Bank |
| $350,000–1 million | CROMPTON SALES, INC. | METHUEN, MA | Eastern Bank |
| $350,000–1 million | CROSSPOINT ASSOCIATES INC. | WALTHAM, MA | Eastern Bank |
| $150,000–350,000 | CROSSROADS COLLISION CENTER LLC | MANCHESTER, NH | Eastern Bank |
| $2–5 million | CROTCHED MOUNTAIN REHABILITATION CENTER INC. | Greenfield, NH | Eastern Bank |
| $150,000–350,000 | CROWDCOMFORT, INC | Boston, MA | Eastern Bank |
| $350,000–1 million | CROWN OBSTETRICS & GYNECOLOGY, P.C. | QUINCY, MA | Eastern Bank |
| $150,000–350,000 | CROWNINSHIELD FINANCIAL | Brookline, MA | Eastern Bank |
| $150,000–350,000 | CROWNINSHIELD FINANCIAL RESEARCH, INC. | BROOKLINE, MA | Eastern Bank |
| $350,000–1 million | CRUZ MANAGEMENT CO. INC. | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CRYSTAL ENGINEERING CO I | Newburyport, MA | Eastern Bank |
| $350,000–1 million | CRYSTAL ENGINEERING CO., INC. | NEWBURYPORT, MA | Eastern Bank |