| EMC Corporation |
14,414 |
| State of New Hampshire |
7,997 |
| LPL Financial |
7,270 |
| Liberty Mutual Holding Company |
7,082 |
| Koninklijke Philips Electronics NV |
6,018 |
| Fidelity Investments |
5,567 |
| Harvard University |
5,394 |
| Staples Inc. |
5,089 |
| Raytheon Company |
4,874 |
| Partners HealthCare System Inc. |
4,685 |
| Dartmouth College |
4,506 |
| Massachusetts Institute of Technology |
4,142 |
| Massachusetts Mutual Financial Group |
3,764 |
| Boston University |
3,304 |
| Covidien |
3,158 |
| Thermo Fisher Scientific Inc. |
2,983 |
| Boston College |
2,862 |
| Boston Scientific Corporation |
2,784 |
| Tufts University |
2,598 |
| Commonwealth of Massachusetts |
2,598 |
| University of Massachusetts |
2,256 |
| University of Massachusetts Lowell |
2,209 |
| The TJX Companies, Inc. |
2,076 |
| Worcester Polytechnic Institute |
2,033 |
| John Hancock Financial Services |
2,023 |
| Putnam Investments |
2,017 |
| Iron Mountain, Inc. |
2,000 |
| Parametric Technology Corporation |
1,904 |
| Fresenius Medical Care |
1,887 |
| UMass Memorial Health Care |
1,881 |
| Sapient Corporation |
1,855 |
| Harvard-Faculty of Arts and Sciences |
1,752 |
| Worcester State University |
1,709 |
| Brandeis University |
1,574 |
| State Street Corporation |
1,570 |
| Northeastern University |
1,528 |
| Emerson College |
1,515 |
| University of New Hampshire |
1,481 |
| Biogen Idec Inc. |
1,414 |
| Salem State University |
1,400 |
| RSA Security Inc. |
1,378 |
| University of Massachusetts Boston |
1,353 |
| PAREXEL International Corporation |
1,352 |
| New Hampshire Department of Health & Human Services |
1,321 |
| Sovereign Bancorp, Inc. |
1,315 |
| Bridgewater State University |
1,275 |
| Bain & Company, Inc. |
1,262 |
| Williams College |
1,241 |
| Alere, Inc. |
1,232 |
| Ropes & Gray LLP |
1,222 |
| Metso Corporation |
1,221 |
| Boston Public Schools |
1,207 |
| Dartmouth-Hitchcock |
1,173 |
| National Grid Usa Service Company, Inc. |
1,172 |
| Bingham McCutchen LLP |
1,169 |
| Kronos Incorporated |
1,164 |
| Baystate Health |
1,146 |
| Wellesley College |
1,099 |
| Analog Devices, Inc. |
1,084 |
| Dassault Systemes NA |
1,072 |
| Teradyne, Inc. |
1,071 |
| Blue Cross Blue Shield of Massachusetts (BCBSMA) |
1,031 |
| Hanover Insurance Group, Inc. |
1,023 |
| OSRAM SYLVANIA Inc. |
990 |
| Goodwin Procter LLP |
985 |
| Plymouth State University |
974 |
| Bose Corporation |
963 |
| Steward Health Care System |
955 |
| Beth Israel Deaconess Medical Center |
886 |
| Waters Corporation |
886 |
| Cresa |
867 |
| Nuance Communications, Inc |
860 |
| The Boston Consulting Group |
848 |
| SkillSoft Corporation |
836 |
| Houghton Mifflin Harcourt Publishing Company |
830 |
| The Merck Group |
819 |
| Wellington Management |
807 |
| LESLEY UNIVERSITY |
792 |
| Staples Advantage |
783 |
| PerkinElmer, Inc. |
780 |
| Avid Technology, Inc. |
772 |
| Northeast Utilities |
771 |
| Boston Medical Center |
768 |
| Lahey Clinic Medical Center |
762 |
| CDM Smith |
757 |
| Community College System Of New Hampshire |
756 |
| MFS Investment Management |
740 |
| The First Marblehead Corporation |
730 |
| Edwards Wildman Palmer LLP |
724 |
| Bay Path College |
712 |
| Shrewsbury School District |
710 |
| The MathWorks, Inc. |
707 |
| Harvard Medical School |
707 |
| Bentley University |
695 |
| Babson College |
689 |
| Francis X Collins Middle School |
679 |
| Bright Horizons Family Solutions, Inc. |
657 |
| International Data Corporation |
648 |
| The Stop & Shop Supermarket Company, LLC |
636 |
| Wheaton College |
620 |
| Akamai Technologies, Inc. |
619 |
| Suffolk University |
618 |
| Mintz, Levin, Cohn, Ferris, Glovsky and Popeo P.C. |
614 |
| Alkermes, Inc. |
607 |
| Tufts Medical Center |
598 |
| SABIC Innovative Plastics US LLC |
594 |
| Hologic, Inc. |
589 |
| Harvard Business School |
580 |
| Granite Telecommunications |
569 |
| Millennium Pharmaceuticals Inc |
562 |
| Endicott College |
562 |
| Vertex Pharmaceuticals Incorporated |
557 |
| Abt Associates Inc |
543 |
| Digitas |
542 |
| Interactive Data LLC |
537 |
| Randolph Public Schools |
529 |
| Pegasystems Inc. |
527 |
| Lionbridge Technologies, Inc. |
515 |
| Forrester Research, Inc. |
514 |
| Eaton Vance Distributors, Inc. |
513 |
| PC Connection, Inc. |
511 |
| Massachusetts College of Art and Design |
511 |
| Merrimack College |
511 |
| Columbia Management Investment Advisers, LLC |
490 |
| UniFirst Corporation |
489 |
| Quinsigamond Community College |
487 |
| Clean Harbors, Inc. |
479 |
| Aspen Technology, Inc. |
466 |
| Massachusetts Institute of Technology Lincoln Labs |
462 |
| Colby-Sawyer College |
457 |
| City of Boston |
456 |
| Aspect Software, Inc. |
456 |
| ModusLink Global Solutions |
454 |
| Clark University |
453 |
| Oxford Global Resources, Inc |
453 |
| Charles River Laboratories Inc. |
452 |
| Cambridge Health Alliance (CHA) |
452 |
| TechTarget, Inc. |
450 |
| Advantage Resourcing |
442 |
| TomTom International b.v |
434 |
| Commonwealth Motors |
431 |
| Framingham Public Schools |
430 |
| Pioneer Investments |
428 |
| Northfield Mt. Hermon School |
426 |
| Fish & Richardson P.C. |
425 |
| Cubist Pharmaceuticals, Inc. |
421 |
| Cape Cod Healthcare |
419 |
| Hallmark Health |
418 |
| BJ's Wholesale Club, Inc. |
415 |
| Questex Media Group L.L.C. |
411 |
| Jack Morton Worldwide |
403 |
| Holcim |
398 |
| Harvard Pilgrim Health Care Inc |
395 |
| Holliston Public Schools |
394 |
| Cambridge College |
392 |
| Arnold Worldwide |
389 |
| Dana-Farber Research Institute |
384 |
| Skyworks Solutions, Inc. |
383 |
| C&S Wholesale Grocers |
382 |
| Watertown Public Schools |
379 |
| MorphoTrust USA |
379 |
| Mount Wachusett Community College |
379 |
| New Balance, Inc. |
378 |
| Acushnet Company |
369 |
| iRobot Corporation |
363 |
| Harvard Law School |
359 |
| Sudbury Public Schools |
356 |
| Accellent Inc. |
353 |
| NaviSite, Inc. |
353 |
| College of The Holy Cross |
352 |
| Cabot Corporation |
351 |
| Better Homes and Gardens the Masiello Group |
350 |
| Western New England College |
345 |
| South Shore Hospital |
343 |
| ZOLL Medical Corporation |
343 |
| Cambridge Public Schools |
342 |
| American Tower Corporation |
341 |
| Boston Globe |
341 |
| Mount Ida College |
338 |
| Greater Lowell technical High School |
332 |
| Five Star Quality Care, Inc. |
330 |
| Cabot Corporation |
325 |
| TRC Companies, Inc. |
321 |
| Northeast Health System, Inc. (NHS) |
320 |
| Pharmalucence Inc. |
319 |
| Bottomline Technologies Inc. |
317 |
| CRA International |
313 |
| W.B. Mason Company |
313 |
| MKS Instruments, Inc. |
313 |
| Progress Software Corporation |
310 |
| Dunkin' Brands, Inc. |
309 |
| CareGroup, Inc. |
305 |
| L. E. K. Consulting |
301 |
| Phillips Exeter Academy |
295 |
| Constant Contact, Inc |
295 |
| Vanasse Hangen Brustlin, Inc. (VHB) |
294 |
| Buckingham, Browne & Nichols School |
292 |
| Fisher Scientific |
292 |
| Hill Holiday |
290 |
| Ameresco |
289 |
