| $1–2 million | CAST, INC. | WAKEFIELD, MA | Eastern Bank |
| $5–10 million | CATALDO AMBULANCE SERVICE, INC. | SOMERVILLE, MA | Eastern Bank |
| $350,000–1 million | CATALYST RESTAURANT LLC | Cambridge, MA | Eastern Bank |
| $350,000–1 million | CATALYST RESTAURANT LLC | CAMBRIDGE, MA | Eastern Bank |
| $2–5 million | CATERED AFFAIR (THE) | ROCKLAND, MA | Eastern Bank |
| $350,000–1 million | CATHEDRAL HIGH SCHOOL INC | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CATHEDRAL HIGH SCHOOL INC. | Boston, MA | Eastern Bank |
| $2–5 million | CATHOLIC CHARITABLE BUREAU OF THE ARCHDIOCESE OF BOSTON, INC | SOUTH BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CATHOLIC PURCHASING SERV | Newton, MA | Eastern Bank |
| $150,000–350,000 | CATHOLIC PURCHASING SERVICES | NEWTON, MA | Eastern Bank |
| $350,000–1 million | CAVERNOSA CORP | CHESTNUT HILL, MA | Eastern Bank |
| $150,000–350,000 | CAZAROSSI LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | CAZAROSSI LLC DBA FRENCHIE | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CBC CONSTRUCTION CO INC | Danvers, MA | Eastern Bank |
| $150,000–350,000 | CCA CONSTRUCTION CONSULTING ASSOCIATES, LLC | BURLINGTON, MA | Eastern Bank |
| $2–5 million | CDM FITNESS HOLDINGS, LLC | FRANKLIN, MA | Eastern Bank |
| $150,000–350,000 | CDS CONTRACTING SERVICES | Holbrook, MA | Eastern Bank |
| $150,000–350,000 | CDS CONTRACTING SERVICES, LLC | HOLBROOK, MA | Eastern Bank |
| $150,000–350,000 | CENTER FOR ECONOMIC DEMOCRACY INC. | BOSTON, MA | Eastern Bank |
| $350,000–1 million | CENTER FOR INFORMATION AND STUDY ON CLINICAL RESEARCH PARTIC | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CENTER FOR THE DEVELOPMENT OF TEEN EMPOWERMENT PROGRAMS | ROXBURY, MA | Eastern Bank |
| $2–5 million | CENTRAL CEILINGS INC | South Easton, MA | Eastern Bank |
| $5–10 million | CENTRAL CEILINGS, INC | SOUTH EASTON, MA | Eastern Bank |
| $350,000–1 million | CENTRAL GLASS COMPANY I | West Bridgewater, MA | Eastern Bank |
| $350,000–1 million | CENTRAL GLASS COMPANY, INC. | WEST BRIDGEWATER, MA | Eastern Bank |
| $150,000–350,000 | CENTRAL SIGNAL CORP | WAKEFIELD, MA | Eastern Bank |
| $150,000–350,000 | CENTRAL SYSTEMS COMPANY, INC. | BRIDGEWATER, MA | Eastern Bank |
| $350,000–1 million | CENTRE PEDIATRIC ASSOCIATES P.C. | Brookline, MA | Eastern Bank |
| $350,000–1 million | CENTRE PEDIATRIC ASSOCIATES, PC | BROOKLINE, MA | Eastern Bank |
| $150,000–350,000 | CERCONE BROWN & COMPANY | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CERCONE BROWN & COMPANY, LLC | BOSTON, MA | Eastern Bank |
| $1–2 million | CERES, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CHAMELEON GROUP LLC | Dover, NH | Eastern Bank |
| $150,000–350,000 | CHAMELEON GROUP, LLC | PORTSMOUTH, NH | Eastern Bank |
| $150,000–350,000 | CHANG SHING TOFU, INC. | CAMBRIDGE, MA | Eastern Bank |
| $350,000–1 million | CHAPMAN CONSTRUCTION GRO | Sandwich, MA | Eastern Bank |
| $350,000–1 million | CHAPMAN CONSTRUCTION GROUP INC | SANDWICH, MA | Eastern Bank |
| $1–2 million | CHAPMAN CONSTRUCTION/DESIGN COMPANY | NEWTON HIGHLANDS, MA | Eastern Bank |
| $1–2 million | CHAPMAN WATERPROOFING COMPANY | Holbrook, MA | Eastern Bank |
| $150,000–350,000 | CHARLES F. MURPHY, INC. | BRAINTREE, MA | Eastern Bank |
| $150,000–350,000 | CHARLES R MYER & PARTNERS LTD | CAMBRIDGE, MA | Eastern Bank |
| $150,000–350,000 | CHARLESMARK HOTEL LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | CHARLESTOWN CHIEFS LLC | Brookline, MA | Eastern Bank |
| $150,000–350,000 | CHASCO, INC. | PORTSMOUTH, NH | Eastern Bank |
| $350,000–1 million | CHASTON ASSOCIATES, INC. | NORTH ANDOVER, MA | Eastern Bank |
| $150,000–350,000 | CHELMSFORD PEDIATRICS LL | Chelmsford, MA | Eastern Bank |
| $150,000–350,000 | CHELMSFORD PEDIATRICS LLC | CHELMSFORD, MA | Eastern Bank |
| $150,000–350,000 | CHEWIE'S PLAYLAND LLC | Nashua, NH | Eastern Bank |
| $350,000–1 million | CHICKEN AND RICE GUYS LL | Everett, MA | Eastern Bank |
| $350,000–1 million | CHICKEN AND RICE GUYS LLC | EVERETT, MA | Eastern Bank |
| $350,000–1 million | CHILD WELFARE INNOVATION | Dorchester, MA | Eastern Bank |
| $350,000–1 million | CHILD WELFARE INNOVATION, INC. | DORCHESTER, MA | Eastern Bank |
| $150,000–350,000 | CHILDREN'S CENTER OF LEXINGTON INC | Lexington, MA | Eastern Bank |
| $150,000–350,000 | CHUCK'S CAFE INC. | Boston, MA | Eastern Bank |
| $150,000–350,000 | CHUCKS CAFE, INC. | Boston, MA | Eastern Bank |
| $150,000–350,000 | CHUNG SING LLC | Chestnut Hill, MA | Eastern Bank |
| $150,000–350,000 | CHUNG SING LLC | CHESTNUT HILL, MA | Eastern Bank |
| $150,000–350,000 | CHURCH OF THE ADVENT | Boston, MA | Eastern Bank |
| $350,000–1 million | CHURCHILL CORPORATION | Melrose, MA | Eastern Bank |
| $150,000–350,000 | CHURCHILL CORPORATION | MELROSE, MA | Eastern Bank |
| $2–5 million | CIC INNOVATION SERVICES, LLC | CAMBRIDGE, MA | Eastern Bank |
| $350,000–1 million | CITIZENS' HOUSING AND PLANNING ASSOCIATION, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | CITY ELEVATOR COMPANY, INC. | WOBURN, MA | Eastern Bank |
| $150,000–350,000 | CITY FEED AND SUPPLY INC. | JAMAICA PLAIN, MA | Eastern Bank |
| $350,000–1 million | CITY FRESH FOODS INC | ROXBURY, MA | Eastern Bank |
| $150,000–350,000 | CITY PAINT & SUPPLY COMPANY INC | CAMBRIDGE, MA | Eastern Bank |
| $150,000–350,000 | CITYRETAIL LLC | Cambridge, MA | Eastern Bank |
| $150,000–350,000 | CLARK LAU LLC | Boston, MA | Eastern Bank |
| $150,000–350,000 | CLARK PENN, LLC | UTICA, NY | Eastern Bank |
| $350,000–1 million | CLARKE CUSTOMER CARE | MILFORD, MA | Eastern Bank |
| $350,000–1 million | CLARKE DISTRIBUTION CORP | Milford, MA | Eastern Bank |
| $350,000–1 million | CLARKE DISTRIBUTION CORPORATION | MILFORD, MA | Eastern Bank |
| $350,000–1 million | CLEAN TECH SYSTEMS, INC. | DANVERS, MA | Eastern Bank |
| $150,000–350,000 | CLOUD CONSTRUCT LLC | Boston, MA | Eastern Bank |
| $350,000–1 million | CMA ENGINEERS INC | Portsmouth, NH | Eastern Bank |
| $1–2 million | CMC DESIGN BUILD INC | Quincy, MA | Eastern Bank |
| $350,000–1 million | CMC DESIGN-BUILD INC | QUINCY, MA | Eastern Bank |
| $150,000–350,000 | CMGC BUILDING CORP. | MANCHESTER, NH | Eastern Bank |
| $150,000–350,000 | CMGC BUILDING CORP. | Manchester, NH | Eastern Bank |
| $1–2 million | CMI - VANTAGE PARTNERS, LLC | BRIGHTON, MA | Eastern Bank |
| $1–2 million | CMI-VANTAGE PARTNERS LLC | Boston, MA | Eastern Bank |
| $350,000–1 million | CMRG LLC | Wakefield, MA | Eastern Bank |
| $150,000–350,000 | CMRG LLC | WAKEFIELD, MA | Eastern Bank |
| $150,000–350,000 | COASTAL EQUIPMENT RENTALS, INC. | MARSTONS MILLS, MA | Eastern Bank |
| $150,000–350,000 | COASTAL TRUCK AND AUTO BODY INC | Portsmouth, NH | Eastern Bank |
| $150,000–350,000 | COASTAL TRUCK AND AUTOBODY, INC | Portsmouth, NH | Eastern Bank |
| $150,000–350,000 | COBBLESTON MANAGEMENT LLC | BROCKTON, MA | Eastern Bank |
| $150,000–350,000 | COFFEE BREAK CAFE INC | Quincy, MA | Eastern Bank |
| $150,000–350,000 | COFFEE BREAK CAFE INC. | QUINCY, MA | Eastern Bank |
| $150,000–350,000 | COLBURN AND GUYETTE CONSULTING PARTNERS, INCORPORATED | ROCKLAND, MA | Eastern Bank |
| $350,000–1 million | COLLEGE BOUND DORCHESTER | Dorchester, MA | Eastern Bank |
| $350,000–1 million | COLLEGE BOUND DORCHESTER, INC. | DORCHESTER, MA | Eastern Bank |
| $350,000–1 million | COLLEGE BOUND MOVERS INC | NASHUA, NH | Eastern Bank |
| $150,000–350,000 | COLLEGE DIABETES NETWORK | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | COLLEGE DIABETES NETWORK INC. | Boston, MA | Eastern Bank |
| $150,000–350,000 | COLLEGES OF THE FENWAY, INC. | BOSTON, MA | Eastern Bank |
| $150,000–350,000 | COLONIAL SAW COMPANY INC | Kingston, MA | Eastern Bank |
| $150,000–350,000 | COLONIAL SAW COMPANY, INC | KINGSTON, MA | Eastern Bank |
| $1–2 million | COLOR INC | Holliston, MA | Eastern Bank |
| $1–2 million | COLOR INC | Holliston, MA | Eastern Bank |