| | Broadcast Media | London | ENG | > $1B |
| | Retail | Richfield | MN | > $1B |
| | Publishing | New York | NY | $50 - 100M |
| | Internet | New York | NY | |
| | Publishing | Berlin | Berlin | $10 - 50M |
| | Sports | San Francisco | CA | $100 - 250M |
| | Online Media | Los Angeles | CA | $0 - 1M |
| | Health, Wellness and Fitness | Boise | ID | $250 - 500M |
| BibleGatewayBibleGateway.com: A searchable online Bible in over 150 versions and 50 languages. | Internet | Grand Rapids | MI | $1 - 10M |
| | Retail | Union | NJ | > $1B |
| BoredPandaBoredPanda - The Only Magazine For Pandas | Arts and Crafts | | | $0 - 1M |
| Bankrate, Inc.id="ctl00_head_title">Bankrate.com - Compare mortgage, refinance, insurance, CD rates | Internet | Abilene | TX | $100 - 250M |
| BillboardBillboard - Music Charts, News, Photos & Video | Billboard | Publishing | New York | NY | $10 - 50M |
| | Banking | Toronto | ON | > $1B |
| | Internet | Aliso Viejo | CA | $500M - 1B |
| | Nonprofit Organization Management | | | > $1B |
| | Publishing | New York | NY | $1 - 10M |
| | Financial Services | Toronto | ON | > $1B |
| BizPac ReviewBizPac Review | Conservative News Today | BizPac Review | Online Media | West Palm Beach | FL | |
| | Newspapers | Boston | MA | $100 - 250M |
| | Health, Wellness and Fitness | Chicago | IL | $10 - 50M |
| Boston.comBoston.com - Local breaking news, sports, and culture | Online Media | Boston | MA | $0 - 1M |
| | Music | New York | NY | $10 - 50M |
| Bloomingdale'sShop Bloomingdale's | Designer Dresses, Clothes, Shoes, Handbags, Cosmetics, Home and More | Retail | New York | NY | $500M - 1B |
| | Internet | Los Angeles | CA | $1 - 10M |
| | Internet | Coral Gables | FL | $0 - 1M |
| B92B92 - Internet, Radio i TV stanica - najnovije vesti iz Srbije i sveta | Broadcast Media | Novi Beograd | | $50 - 100M |
| | Capital Markets | Mumbai | Maharashtra | $100 - 250M |
| | Sports | Milton | MA | |
| | Higher Education | Boston | MA | > $1B |
| | Online Media | Dhaka | | $100 - 250M |
| B&QDIY Supplies & Accessories | DIY at B&Q | Retail | Chandler's Ford | England | > $1B |
| | Entertainment | New York | NY | |
| Boredom TherapyBoredom Therapy - Trending Stories And Pictures You Can't Miss | Internet | New York | NY | |
| | Cosmetics | Philadelphia | PA | $0 - 1M |
| | Banking | Tukwila | WA | $500M - 1B |
| | Online Media | Madison | WI | $0 - 1M |
| BroBibleBroBible - Redefining Bro Culture with Lifestyle, Sports and Culture News for Millennials | Entertainment | New York | NY | $1 - 10M |
| | Internet | Mill Valley | CA | $1 - 10M |
| | International Trade and Development | Amersfoort | | $10 - 50M |
| BrightcoveBrightcove | The Leading Online Video Platform | Video Hosting | Online Media | Boston | MA | $50 - 100M |
| BelkBelk | Shop Clothing, Beauty, Shoes, Home & More | Belk | Retail | Charlotte | NC | > $1B |
| BossipBossip | Entertainment News & Celebrity Gossip | Broadcast Media | | | $1 - 10M |
| | Automotive | Woodcliff Lake | NJ | > $1B |
| | Banking | Edinburgh | Scotland | > $1B |
| | Retail | | | |
| | Hospitality | | | $100 - 250M |
| | Publishing | | | $0 - 1M |
| BoldChat
Live website chat software | BoldChat
| Computer Software | Wichita | KS | $1 - 10M |
| | Marketing and Advertising | MARIETTA | GA | |
| | | | | |
| | | | | |
| | Financial Services | Chicago | IL | $10 - 50M |
| | Publishing | Englewood Cliffs | NJ | > $1B |
| | Newspapers | Boston | MA | $100 - 250M |
| BobVila.com
Bob Vila - Home Improvement, Home Repair And Home Renovation
| Online Media | Barnstable | MA | |
| | Online Media | Berlin | | |
| BookboonDownload free eBooks at bookboon.com | Publishing | London | England | $1 - 10M |
| | Retail | New York | NY | $100 - 250M |
| blogg.noblogg.no - Nordens st??rste bloggsamfunn | Internet | | | |
| Betfred
Betfred online betting, sports, casino, games, poker and Bingo | Betfred.com | Gambling & Casinos | Birchwood | England | $250 - 500M |
| | Marketing and Advertising | Whiteley | | $0 - 1M |
| | Banking | LOS ANGELES | CA | |
| | Online Media | DULUTH | GA | |
| | Maritime | | | $500M - 1B |
| | E-Learning | Forest Hills | MI | $0 - 1M |
| BiowareBioWare | Rich Stories, Unforgettable Characters, And Vast Worlds | Computer Games | Edmonton | AB | $100 - 250M |
| BlurbCreate and self-publish books, magazines & ebooks | Blurb | Internet | San Francisco | CA | $10 - 50M |
| Bimmerforums.comBimmerforums - The Ultimate BMW Forum for News, DIYs, Technical Talk and More! | Automotive | Plainfield | NJ | $1 - 10M |
| BuddyTV
BuddyTV - TV News, Spoilers, Photos, TV Personality Quizzes, Trivia
| Computer Software | Seattle | WA | $1 - 10M |
| | Online Media | San Francsico | CA | $0 - 1M |
| Blue MobileMobilfunkanbieter: günstige Top-Tarife von blau.de | Telecommunications | Hamburg | | $0 - 1M |
| bold.dkFodbold, nyheder, livescore, resultater og tabeller | bold.dk | | København | | |
| BenzingaActionable Trading Ideas, Real Time News, Financial Insight | Benzinga | Online Media | Southfield | MI | $1 - 10M |
| Blackbaud
Fundraising for Nonprofits, Nonprofit Software – Blackbaud
| Computer Software | Charleston | SC | > $1B |
| | Internet | Orange | CA | |
| | Publishing | Boulder | CO | $1 - 10M |
| bikerumor.comBikerumor - All the best cycling news, tech, rumors and reviews | Internet | | | |
| BroderbundGenealogy.com: Genforum & Family History Search | Restaurants | Novato | CA | $1 - 10M |
| | | LOS ANGELES | CA | |
| | Apparel & Fashion | London | England | $100 - 250M |
| | Online Media | Brooklyn | NY | $0 - 1M |
| | Computer Software | Exton | PA | $500M - 1B |
| | Apparel & Fashion | Vernon | CA | > $1B |
| boats.comboats.com - new and used boats for sale #everythingboats | Maritime | Fareham | Hampshire | $500M - 1B |
| | Cosmetics | San Francisco | CA | > $1B |
| BurdaStyle, Inc.Fashion, Sewing Patterns, Inspiration, Community, and Learning | BurdaStyle.com | Online Media | New York | NY | $1 - 10M |
| | Online Media | WADDELL | | $0 - 1M |
| | Information Services | New York | NY | $0 - 1M |
| | Newspapers | Bournemouth | | $100 - 250M |
| BoomTownBoomTown | Real Estate Sales & Marketing Software | Computer Software | Charleston | SC | $10 - 50M |
| BizSugar
Small business news; tips; networking | BizSugar | Internet | Medina | OH | $1 - 10M |
| | Online Media | Los Angeles | CA | $0 - 1M |
| | Health, Wellness and Fitness | | | |
| | Online Media | São Paulo | SP | |
| Busted CoverageSports Gossip, Sexy WAGs, NFL and Hot Cheerleaders: BustedCoverage | Sporting Goods | New York | NY | $0 - 1M |
| | Airlines/Aviation | Berlin | | > $1B |
| Baker CollegeBaker College - Undergraduate & Graduate Degrees Online & in Michigan | Higher Education | Allen Park | MI | $100 - 250M |
| | Media Production | Centereach | NY | $0 - 1M |
| Budget Travel LLCBudget Travel | Travel Deals, Travel Tips, Travel Advice, Vacation Ideas | Publishing | New York | NY | $1 - 10M |
