| Business | Founded | Contacts |
|---|---|---|
| Everynetwork Inc | 1996 | 1 |
| Nyce Corporation | 1997 | 2 |
| Markley Group | 1998 | 88 |
| Telco Communications | 2001 | - |
| Elantic Networks | 2002 | - |
| Towardex Technologies International, Inc | 2003 | 3 |
| Dominion Telecom | 2004 | 1 |
| I Hear Corp | 2004 | - |
| Naii | 2004 | - |
| Nail | 2004 | - |
| Sts Llc | - | - |
| Neutral Tandem Inc | 2006 | 22 |
| Richard B Michaud | - | 1 |
| Telemasys Group Garland LLC | - | - |
| Markley One Summer St | 2007 | 1 |
| zColo by Zayo | 2007 | 1 |
| Cogent Inc | 2008 | 2 |
| Unisphere Networks | 2008 | 3 |
| Data Intensity | 2009 | 5 |
| MSP One Summer Street LLC | - | 1 |
| Mtromedia Fiber Network Services | 2010 | - |
| Relianceglobal.Com | 2010 | 17 |
| Corporate Executive Board | 2011 | - |
| Qwest Business Sales | 2011 | 7 |
| Connectxcite Inc | - | 1 |
| Executive Force Protection | - | 1 |
| Qwest Communications In. | - | 1 |
| Qwest Communications International Inc. | - | 1 |
| Smartcloud Inc | 2012 | 1 |
| Zayo Group / Formerly AboveNet | - | 1 |
| A Touch Of Class Limousine | - | - |
| Abovenet Communications, Inc | - | - |
| Colocation Boston | - | - |
| Efp Alliance Foundation | - | 1 |
| Efp Staffing | - | 1 |
| TowardEX Premise Communications LLC | - | - |
| Impulse at Macy's | - | - |
| Cogent Communications Boston | - | 1 |
| Markley One Summer Street LLP | 2015 | 4 |
| State Street Bank | 2015 | - |
| 1 Summer St | - | - |
| Wilde World Entertainment | - | - |
| 1 Summer St | - | - |
| Analysis Group | - | - |
| Aurus Inc | - | 1 |
| Corporate Executive Board | - | - |
| Credorex USA Inc | - | - |
| Fundquest | - | 1 |
| Internet & Telephone | - | - |
| Liberty Mutual | - | 1 |
| M I T | 2017 | 1 |
| Shields Mri | - | - |
| Sunstein Kann Murphy & Timbers | - | - |
| Western Asset Management-Raritan | - | - |
| Century Link | - | - |
| CenturyLink, Inc. | - | 2 |
| FactSet Research Systems Inc. | - | 1 |
| Global Cloud Xchange | - | 4 |
| Hub Technical Services | - | 1 |
| LIGO Laboratory, CalTech | - | 1 |
| Wheelock College | - | - |
| Zayo Group | - | - |
| Jordan Marsh | - | - |
| Markley Group | - | 1 |
| North Atlantic Networks | - | - |
| See more details on www.addresshistory.com | ||