| | Education Management | New York | NY | $0 - 1M |
| QuillOffice Supplies, Ink, Toner and Office Furniture | Quill.com | Business Supplies and Equipment | Lincolnshire | IL | $500M - 1B |
| QlikBusiness Intelligence | Data Visualization Tools | Qlik | Computer Software | Wayne | PA | $500M - 1B |
| Quicken LoansQuicken Loans | Home Mortgage Loans | Over Two Million Loans Closed! | Financial Services | Detroit | MI | > $1B |
| que.esQu???.es - Noticias de Espa???a - Actualidad y ???ltimas noticias | Newspapers | Len | Len | $1 - 10M |
| | Newspapers | Davenport | IA | $100 - 250M |
| | Restaurants | Wheat Ridge | CO | $500M - 1B |
| | | | | |
| | Consumer Goods | Kapolei | HI | $10 - 50M |
| | Information Technology and Services | EAST HARTFORD | CT | > $1B |
| | Pharmaceuticals | Durham | NC | > $1B |
| Qubole
Qubole | Cloud-scale Data Processing | Information Technology and Services | Palo Alto | CA | $0 - 1M |
| queendom.comQueendom: personality tests, IQ tests, mind games, love tests, career tests | Computer Software | BEVERLY HILLS | CA | |
| Quiz Your FriendsQuiz Your Friends - Make a Quiz, Send it to Your Friends, Post it in Your Profile! | | | | |
| | Internet | Brooklyn | NY | $0 - 1M |
| | Semiconductors | Hillsboro | OR | |
| | Facilities Services | Quakertown | PA | $10 - 50M |
| | Consumer Services | Nashville | TN | $0 - 1M |
| | Higher Education | Quincy | MA | $0 - 1M |
| | Sports | Doha | | $10 - 50M |
| | Internet | | | |
| | Real Estate | Maastricht | Limburg | $500M - 1B |
| | Machinery | | | $10 - 50M |
| QuadTechQuadTech Automated Printing Press Controls | Printing | Sussex | WI | $100 - 250M |
| | Consumer Electronics | Livermore | CA | $10 - 50M |
| | Nonprofit Organization Management | Doha | | $50 - 100M |
| | Events Services | Doha | None | $50 - 100M |
| | Marketing and Advertising | Culver City | CA | $1 - 10M |
| quantumcloud
Outsource Web Design Works & Web Development Projects to QuantumCloud | Information Technology and Services | KISSIMMEE | | $1 - 10M |
| | Real Estate | Oslo | | |
| | Newspapers | Maspeth | NY | $0 - 1M |
| | Apparel & Fashion | Eunice, LA | | |
| | Writing and Editing | London | | $1 - 10M |
| | Staffing and Recruiting | Palo Alto | CA | $1 - 10M |
| | Management Consulting | Alexandria | Alexandria Governorate | $1 - 10M |
| | Business Supplies and Equipment | North Vancouver | BC | |
| | Sports | Brisbane | Queensland | $10 - 50M |
| | | | | |
| QUMASQUMAS - Quality and Regulatory Compliance Software | Computer Software | Jersey City | NJ | $10 - 50M |
| | Information Technology and Services | Cape Town | | $1 - 10M |
| | Internet | Tel Aviv | Tel Aviv | $0 - 1M |
| Q TheatreHome | Q Theatre. Cafe. Bar. 305 Queen Street, Auckland NZ. | Performing Arts | Auckland | Auckland | $0 - 1M |
| | Nonprofit Organization Management | Ipswich | MA | $0 - 1M |
| | Biotechnology | San Diego | CA | $1 - 10M |
| | Real Estate | HERTS | Hertfordshire | |
| | Marketing and Advertising | Berwyn | PA | $10 - 50M |
| | Computer Software | | | $0 - 1M |
| | Writing and Editing | | | $1 - 10M |
| | Leisure, Travel & Tourism | Haida Gwaii | BC | $1 - 10M |
| Quacito LLCIT & Web Design, Development Company in San Antonio, TX | Computer Software | San Antonio | TX | $0 - 1M |
| | Leisure, Travel & Tourism | | | $1 - 10M |
| | Media Production | Toronto | ON | $1 - 10M |
| | Nonprofit Organization Management | GLEN ELLEN | CA | $0 - 1M |
| | Construction | Citrus Heights | CA | $10 - 50M |
| Quality IPIT Consulting In Cleveland, Akron and Columbus Ohio | Information Technology and Services | Kent | OH | $0 - 1M |
| | | South Molton | | |
| | Publishing | | | $1 - 10M |
| QuoStarQuoStar - The premier-level IT and Business solutions provider | Information Technology and Services | Bournemouth, Dorset | | $1 - 10M |
| | Professional Training & Coaching | Scarborough | ON | $0 - 1M |
| | Local Business | New Haven | MO | $1 - 10M |
| | Design | Franklin Township | NJ | $0 - 1M |
| | Computer & Network Security | Singapore | Singapore | |
| | Publishing | | | $1 - 10M |
| | Printing | Exeter | | $1 - 10M |
| | Public Relations and Communications | Lake Oswego | OR | $0 - 1M |
| | | Chetumal | Mexico | |
| | | Corvallis | OR | $0 - 1M |
| | Automotive | Twinsburg | OH | $50 - 100M |
| | Information Technology and Services | Malveira | | $1 - 10M |
| | Events Services | Bury | | |
| | Telecommunications | Lisburn | | $0 - 1M |
| | Biotechnology | San Antonio | TX | $0 - 1M |
| | | South Hackensack | NJ | |
| | Professional Training & Coaching | Newtown | PA | $0 - 1M |
| | Hospitality | DALLAS | TX | $10 - 50M |
| | Information Technology and Services | | | $0 - 1M |
| | Management Consulting | Stockholm | | $0 - 1M |
| | Management Consulting | Itatiba | SP | $0 - 1M |
| Quanexus
Quanexus - Dayton IT Services > Home
| Information Technology and Services | Dayton | OH | $0 - 1M |
| | Design | Bromley | | $0 - 1M |
| | Printing | Wisconsin Rapids | WI | $0 - 1M |
| | Financial Services | Maryville | TN | $10 - 50M |
| | Management Consulting | | | $0 - 1M |
| | Financial Services | London | | $50 - 100M |
| | Management Consulting | Lisburn | | $0 - 1M |
| | Media Production | Cambridge | | $1 - 10M |
| | Financial Services | ROSEVILLE | CA | $0 - 1M |
| | Pharmaceuticals | Morrisville | North Carolina | |
| | Computer Software | Ottawa | ON | $0 - 1M |
| | Retail | Carmichael | CA | $1 - 10M |
| QUB3 Group Ltdqub3 | Website Design Lincolnshire | Ecommerce Web Design Lincolnshire | Telecommunications | | | $0 - 1M |
| | Marketing and Advertising | Saint Peters | MO | $0 - 1M |
