| University of Colorado Denver |
6,154 |
| University of Colorado Hospital |
2,098 |
| Regis University |
1,801 |
| University of Northern Colorado |
1,272 |
| Gates Corporation |
604 |
| Jeffco Public Schools |
603 |
| Colorado Mountain College |
585 |
| University Corporation for Atmospheric Research |
423 |
| Littleton Public Schools |
398 |
| Coldwell Banker - Colorado Homes |
389 |
| Brownstein Hyatt Farber Schreck, LLP |
329 |
| Aurora Public Schools |
319 |
| City of Denver |
295 |
| Community College of Denver |
279 |
| Arapahoe Community College |
268 |
| Red Rocks Community College |
258 |
| Western State College of Colorado |
256 |
| University Physicians, Inc. |
251 |
| Denver Post |
248 |
| Big O Tires, Inc. |
245 |
| HCA-HealthONE, LLC |
235 |
| Saint Mary's Hospital |
224 |
| Jackson Kelly PLLC |
211 |
| Prestige Real Estate Group |
209 |
| Newmont Mining Corporation |
197 |
| Auraria Higher Education Center |
185 |
| First Lutheran Church |
180 |
| Community Hospital |
174 |
| Naropa University |
173 |
| The Group Inc. of Greeley |
170 |
| Northeastern Junior College; Sterling Colorado |
166 |
| Community College of Aurora |
160 |
| Mesa State College |
157 |
| Global Healthcare Exchange, LLC |
157 |
| Gunnison Watershed School district |
151 |
| Colorado Community College System |
143 |
| Slifer Smith |
143 |
| Cherry Creek School Dst 5 |
142 |
| City of Lafayette Co. |
137 |
| Fitness Together |
136 |
| Boulder Publishing Inc |
134 |
| Starkey Laboratories, Inc. |
129 |
| TouchStar Software Corp |
129 |
| Alternative Technology, Inc. |
128 |
| United Agri Products, Inc. |
127 |
| MacDermid, Incorporated |
124 |
| City of Boulder, Co. |
124 |
| City of Fort Collins |
120 |
| City of Golden |
117 |
| Regis Jesuit High School |
114 |
| Rothgerber Johnson |
113 |
| St Vrain Valley School District |
109 |
| Arapahoe County Government |
109 |
| 9NEWS |
107 |
| Republic Financial Corporation |
106 |
| Handyman Matters, Inc. |
105 |
| Poudre Valley Health System |
104 |
| Davis Graham |
103 |
| Metro Brokers/Realty Oasis |
103 |
| Lakewood City Clerk's Office |
100 |
| Mesa County Valley Public Schools 51 |
99 |
| United General Title Insurance Company |
98 |
| National Cattlemen's Beef Association |
96 |
| Morgan Community College |
95 |
| Vail Valley Medical Center |
92 |
| University of Colorado System Office |
92 |
| First National Bank-Colorado |
88 |
| Market Leader, Inc. |
87 |
| Coates, Reid |
85 |
| KMGH-TV (ABC 7) |
84 |
| National Conference of State Legislator |
83 |
| Cimarex Energy Co. |
83 |
| Boston Market Corporation |
81 |
| Educause |
80 |
| Colorado Bar Association |
80 |
| National Business Media, Inc. |
79 |
| CaridianBCT, Inc. |
79 |
| Pillar to Post Professional Home Inspection |
78 |
| IBEW Local 68 |
78 |
| Regional Transportation District |
77 |
| Greeley Daily Tribune |
77 |
| Fuller |
76 |
| Wagner Equipment Company |
76 |
| RE/MAX Vail Valley, Inc |
76 |
| Mc Whinney Enterprises |
76 |
| Whiting Petroleum Corporation |
75 |
| Quark, Inc. |
75 |
| Boulder County Information Services |
74 |
| 3T Systems Inc |
73 |
| American Water Works Association |
73 |
| MarkWest Energy Partners, L.P. |
73 |
| Mincom |
72 |
| Era Tradewind |
72 |
| Adams County Colorado |
72 |
| 5280 Solutions Incorporated |
71 |
| ICAT - Instant Catastrophe Insurance |
70 |
| Fort Collins-Loveland Municipal Airport |
70 |
| Farmers Union Insurance Companies |
70 |
| ELA Medical LLC |
70 |
| City of Wheat Ridge Co. |
69 |
| Kennedy Childs |
69 |
| FirsTier Bank |
69 |
| Mesa County, Colorado |
68 |
| AORN, Association of Operative Registered Nurses |
68 |
| RE/MAX of Boulder - Andrea Scarsi Taydus |
68 |
| City of Westminster, Co. |
67 |
| Hein Associates LLP |
67 |
| Pinnacle Mortage Group |
66 |
| Paragon Technology Group LLC |
65 |
| Alpine Banks of Colorado |
64 |
| Craig Hospital 7 |
64 |
| Isaacson, Rosenbaum, Woods |
63 |
| Re/Max Alliance |
63 |
| Premier Mortgage Group |
62 |
| UNAVCO |
62 |
| Vail Daily |
61 |
| Trautman & Shreve Inc |
61 |
| Denver Investment Advisors |
60 |
| Heska Corporation |
60 |
| Colorado State Bank |
60 |
| Post Independent |
60 |
| Lewan & Associates a Xerox Company |
59 |
| St. Mary Land & Exploration Company |
58 |
| Tuff Shed Inc |
58 |
| Abound Solar, Inc. |
58 |
| Morrison, Brown, Argiz & Farra, LLP |
57 |
| Colorado PERA |
57 |
| Allos Therapeutics, Inc. |
57 |
| Pinnacol Assurance |
57 |
| Jefferson County, Colorado |
57 |
| Colorado Department of Safety |
56 |
| Home Buyers Warranty Corporation |
56 |
| Cafaro Company |
56 |
| Daily Times-Call |
56 |
| Zayo Group |
56 |
| Denver International Airport |
55 |
| Colorado Christian University |
55 |
| City of Grand Junction Co. |
55 |
| LFR - an Arcadis Company |
55 |
| Montgomery Little |
54 |
| BI Incorporated |
54 |
| Douglas County Government |
54 |
| Einstein Noah Restaurant Group, Inc. |
54 |
| Exclusive Resorts |
53 |
| Atkins Nutritionals, Inc. |
53 |
| City of Thornton |
53 |
| Bill Barrett Corporation |
53 |
| Otten, Johnson, Robinson, Neff |
52 |
| Innospec Inc |
52 |
| The Geological Society of America |
51 |
| New Hope |
51 |
| United Western Bancorp, Inc. |
51 |
| First Western Trust Bank |
51 |
| Still Secure |
51 |
| Arvada Center for the Arts and Humanities |
50 |
| ICON Advisers Inc |
50 |
| Garfield County, Colorado |
50 |
| Weld County |
50 |
| 375 Medical Group |
50 |
| The Sorin Group USA, Inc. |
50 |
| Greeley Medical Clinic |
50 |
| Ward, Craig - Padgett Business Service |
50 |
| Faison Office Products Co |
49 |
| McREL |
48 |
| Platte River Power Authority |
48 |
| Colorado Rockies Baseball Club |
48 |
| Dynamic Materials Corporation |
47 |
| Denver Museum of Nature & Science |
47 |
| Financial Planning Association |
47 |
| The White House |
47 |
| Eagle Summit Publishing |
46 |
| Summit Mortgage Corp. |
46 |
| On Command Corporation |
46 |
| Andisch Inc |
46 |
| QualMark Corporation |
46 |
| ITT Visual Information Solutions |
46 |
| Pharmaca Integrative Pharmacy, Inc. |
46 |
| Champps Entertainment, Inc. |
46 |
| Colorado Plasticard Inc |
46 |
| American Animal Hospital Association |
45 |
| Data Incorporated |
45 |
| Next Media Group |
45 |
| Ireland, Stapleton, Pryor |
44 |
| Intermountain End Stage Renal Disease Network |
43 |
| HDNet, LLC |
43 |
| Plasmon |
43 |
| Laser Technology, Inc. |
43 |
| InfoNow Corporation |
43 |
| The Western Sugar Cooperative |
43 |
| The Publishing House |
43 |
| Jefferson County Colorado |
43 |
| The Cable Center |
43 |
| West Star Aviation |
42 |
| Hall & Evans, LLC |
42 |
| Gold Systems, Inc. |
42 |
| Causey Demgen |
42 |
| The Fort Collins Coloradoan |
42 |
| Drexel, Barrell & Co |
42 |
| Rocky Mountain Health Plans |
41 |
| Aspen Valley Hospital |
41 |