| State of New Hampshire |
7,386 |
| Fidelity (FMR Corp) |
5,053 |
| Northeastern University |
4,236 |
| Boston Scientific Corporation |
3,978 |
| Raytheon Company |
3,566 |
| Massachusetts Institute of Technology |
3,065 |
| Genzyme Corporation |
3,034 |
| Royal Philips Electronics |
3,029 |
| Boston College |
2,538 |
| Smith College |
2,405 |
| Partners HealthCare System, Inc. |
2,100 |
| Biogen Idec Inc. |
1,951 |
| Nh Div Of Health |
1,881 |
| NE Moves |
1,835 |
| Boston University |
1,663 |
| University of Massachusetts - Lowell |
1,619 |
| University of Massachusetts |
1,609 |
| Thermo Fisher Scientific Inc. |
1,568 |
| State Street Corporation |
1,536 |
| Ropes & Gray LLP |
1,454 |
| Staples, Inc. |
1,396 |
| Sepracor Inc. |
1,327 |
| Emerson College |
1,267 |
| Williams College |
1,216 |
| Dartmouth College |
1,118 |
| SkillSoft PLC |
1,002 |
| The First Marblehead Corporation |
974 |
| Simmons College |
973 |
| Kronos Incorporated |
942 |
| Wellesley College |
937 |
| National Grid USA |
886 |
| University of New Hampshire |
821 |
| Salem State College |
808 |
| Nuance Communications, Inc. |
800 |
| Edwards Angell Palmer & Dodge LLP |
796 |
| Shrewsbury School District |
786 |
| LESLEY UNIVERSITY |
785 |
| Commonwealth Equity Services Inc. |
772 |
| Parametric Technology Corporation |
761 |
| Keene State College |
747 |
| Fish |
744 |
| Bristol Community College |
737 |
| Millipore Corporation |
703 |
| Iron Mountain Incorporated |
703 |
| Endicott College |
702 |
| Barclays Global Investors, N.A. |
700 |
| Fresenius Medical Care |
681 |
| PAREXEL International Corporation |
677 |
| Falmouth Schools |
670 |
| Tufts University |
659 |
| Mintz, Levin, Cohn, Ferris, Glovsky and Popeo P.C. |
646 |
| Middlesex Community College, MA |
645 |
| The Hanover Insurance Group, Inc. |
633 |
| Blue Cross and Blue Shield of Massachusetts, Inc. |
631 |
| Dunkin' Brands |
603 |
| CresaPartners LLC |
599 |
| RSA Security Inc. |
579 |
| Bose Corporation |
572 |
| UMass Memorial Health Care |
566 |
| Massachusetts Financial Services Company |
566 |
| Francis X Collins Middle School |
555 |
| Dartmouth Hitchcock Medical Systems |
551 |
| Teradyne, Inc. |
548 |
| Woods Hole Oceanographic Institute |
539 |
| Babson College |
536 |
| Boston Globe |
533 |
| Millennium Pharmaceuticals, Inc. |
524 |
| Fitchburg State College |
514 |
| Harvard Business School |
507 |
| Worcester State College |
491 |
| EMD Serono, Inc. |
490 |
| Curry College |
481 |
| Suffolk University |
467 |
| Northern Essex Community College |
465 |
| Wentworth Institute of Technology |
463 |
| OSRAM SYLVANIA Inc. |
460 |
| Bunker Hill Community College |
454 |
| Metso Corporation |
446 |
| Clark University |
431 |
| Western New England College |
428 |
| Mt. Wachusett Community College |
426 |
| Cabot Corporation |
424 |
| Charles River Laboratories International, Inc. |
421 |
| North Shore Community College |
418 |
| Sapient Corporation |
417 |
| Watertown Public Schools |
414 |
| Cape Cod Community College |
408 |
| The MathWorks, Inc. |
407 |
| One Communications |
406 |
| Houghton Mifflin Harcourt Company |
406 |
| Milton Academy |
400 |
| Holliston Public Schools |
397 |
| City of Newton, Massachusetts, Public School Department |
395 |
| Wellington Management |
389 |
| Kinlin Grover GMAC Real Estate - Gayle Perry |
382 |
| Akamai Technologies, Inc. |
380 |
| Forrester Research, Inc. |
379 |
| Getronics |
377 |
| Baystate Health Systems, Inc. |
377 |
| Caritas Christi Health Care |
368 |
| AGFA Corporation |
364 |
| Hammond Real Estate |
361 |
| Bentley University |
358 |
| ZOLL Medical Corporation |
355 |
| PC Connection, Inc. |
350 |
| Waters Corporation |
349 |
| Vertex Pharmaceuticals Incorporated |
348 |
| Dana-Farber Cancer Institute |
345 |
| Caturano |
343 |
| Greenfield Community College |
340 |
| Brown Rudnick LLP |
339 |
| Becker College |
338 |
| Greater Lowell technical High School |
338 |
| Lakes Region General Healthcare |
337 |
| Colby-Sawyer College |
335 |
| Hologic, Inc. |
327 |
| The Stop & Shop Supermarket Company |
327 |
| Boston City Council |
321 |
| Choate Hall & Stewart LLP |
315 |
| Granite Telecommunications |
313 |
| Aspen Technology, Inc. |
310 |
| City of Lexington, MA |
308 |
| Eaton Vance Corp. |
307 |
| Boston Medical Center |
305 |
| Ahold USA |
304 |
| Hill, Holliday, Connors, Cosmopulos Inc. |
302 |
| Continental Resources, Inc. |
302 |
| Pioneer Investments |
298 |
| Wheaton College |
294 |
| Avid Technology, Inc. |
293 |
| Aquent |
291 |
| Sasaki Associates |
290 |
| Blackwell Publishing |
288 |
| Merrimack College |
287 |
| BJ's Wholesale Club, Inc. |
279 |
| Quinsigamond Community College |
273 |
| TechTarget Inc. |
273 |
| Lahey Clinic, Inc. |
271 |
| Regis College |
270 |
| Harvard Pilgrim Health Care, Inc. |
256 |
| Eastern Bank Corporation |
253 |
| OneSource Information Services, Inc. |
250 |
| OneBeacon Insurance Group, Inc. |
248 |
| Bright Horizons Family Solutions, Inc. |
246 |
| Abt Associates Inc |
245 |
| Progress Software Corporation |
240 |
| The Talbots, Inc. |
240 |
| Brooks Automation, Inc. |
239 |
| Uno Restaurant Holdings Corp. |
239 |
| Framingham Public Schools |
236 |
| Advent International Corporation |
234 |
| Babson Capital Management LLC |
234 |
| Bridgewater State College |
233 |
| Shaw's Supermarkets, Inc. |
233 |
| American Tower Corporation |
232 |
| Dale Carnegie Training |
230 |
| UniFirst Corporation |
230 |
| Interactive Data Corporation |
228 |
| The Timberland Company |
228 |
| MTM Technologies, Inc. |
226 |
| International Fund For Animal Welfare Inc. |
225 |
| Sophos, Inc. |
225 |
| ModusLink Global Solutions, Inc. |
222 |
| Goulston |
222 |
| Plymouth State College |
222 |
| Amherst College |
222 |
| Dassault Systemes |
221 |
| C&S Wholesale Grocers, Inc. |
221 |
| Cubist Pharmaceuticals, Inc. |
218 |
| Sullivan & Worcester LLP |
218 |
| Jack Conway & Company, Inc. |
217 |
| Loomis, Sayles |
214 |
| Enterasys Networks, Inc. |
213 |
| Massachusetts College of Pharmacy and Health Sciences |
213 |
| Cambridge Public Health Commission dba Cambridge Health Alliance |
211 |
| Burns & Levinson LLP |
211 |
| Wheelock College |
209 |
| Oxford Global Resources |
206 |
| University of Massachusetts - Dartmouth |
202 |
| Harvard Medical School |
202 |
| MassBay Community College |
200 |
| Monitor Group LLC |
199 |
| Cognex Corporation |
197 |
| TAC Worldwide |
196 |
| Sappi Fine Paper North America |
195 |
| Alkermes, Inc. |
192 |
| Accellent Inc. |
190 |
| Hampshire College |
190 |
| Diman Regional Vocational Technical High School |
190 |
| L. E. K. Consulting |
189 |
| Uptodate Inc |
188 |
| Ocean Spray Cranberries, Inc. |
187 |
| Netezza Corporation |
185 |
| WGBH Educational Foundation |
185 |
| Wellesley School District |
184 |
| Cape Cod Healthcare, Inc. |
182 |
| Georgetown Public Schools |
180 |
| Lincoln Public Schools (MA) |
179 |
| OMGEO |
177 |
| Devine Millimet |
177 |