| Hollingbury Golf Course | Golf course | Hollingbury Park Golf Club, Hollingbury Golf Course, Ditchling Rd | Daily 07:00–19:00 |
| Hollingbury Park Tennis Courts | Tennis court | Ditchling Rd | Mon–Fri 08:00–20:00 |
| Holt Lodge Sheltered Accommodation - Sanctuary Housing Association | Sheltered housing | Canterbury Dr | Daily Open 24 hours |
| ImmotionVR/iVR - Brighton | Video arcade | Lower level, Churchill Square Shopping Centre, Unit 82 Russell Pl | Mon–Sat 10:00–20:00 |
| Indian Quilts Siddi Kawandi | Textile exporter | 36 Dean St | Daily Open 24 hours |
| Indian Summer | Modern Indian restaurant | 70 East St | Mon 17:00–21:30 |
| Istanbull Katz | Wine bar | 3 Little E St | Thu–Fri 17:30–23:00 |
| J Tasker Decking & Outdoor Structures | Deck builder | Thornhill Rise | Daily 08:00–18:00 |
| Jaba Yard | Ladies' clothes shop | 18 Bond St | Mon–Sat 10:00–18:00 |
| Jake Fern Art | Artist | 32 Stanmer Ave | Daily Open 24 hours |
| Jungle Rumble Adventure Golf - Brighton | Miniature golf course | 286 Madeira Dr | Sun 09:00–19:00 |
| Junior Edition | Children's clothes shop | 34 Kensington Gardens | Sun 11:00–17:00 |
| Jupiter Antiques | Internet shop | 609 | Daily 10:30–17:00 |
| Juvenate Health & Leisure | Spa | Kings Rd | Mon–Thu 06:30–21:00 |
| Kateh Persian Restaurant | Persian restaurant | 35 Montpelier Rd | Daily 12:00–23:30 |
| Kebab House west street | Kebab shop | 61 West St | Daily 17:00–05:00 |
| Kerrie Berrie Beads and Jewellery | Bead shop | 10 Sydney St | Mon–Sat 10:30–17:30 |
| Kids Endocrinology in Brighton | Pediatric endocrinologist | Nuffield Health, Hospital, Warren Rd | Mon–Fri 06:30–20:30 |
| Kitchen Academy | Cooking school | 11 Harrington Villas | Daily 09:00–17:00 |
| Kushu Thai Massage brighton | Thai massage therapist | 48 George St | Daily 09:00–22:00 |
| Kusikuy Peruvian cuisine & Pisco Bar | Peruvian restaurant | 36 East St | Mon–Tue 16:00–22:00 |
| LA Pool Club & Sports Bar | Snooker and pool club | 9B The Waterfront | Daily 11:00–00:00 |
| Languard Alarms | Security system supplier | 217 Preston Rd | Daily Open 24 hours |
| LaserZone | Tourist attraction | 76 West St | Mon–Thu 11:00–21:30 |
| LeoFrames | Picture framing shop | 70 North Rd | Tue–Sat 10:00–17:00 |
| Lewes Road Launderette & Drycleaners | Launderette | 82 Lewes Rd | Daily 09:00–19:00 |
| Lock Stock & Barrel | Locksmith | 63 Ditchling Rd | Sun Open 24 hours |
| Lucy & Yak Brighton North Road | Clothing store | 79-80 North Rd | Mon–Sat 10:00–18:00 |
| LUST! Brighton & Hove's sex shop | Adult entertainment store | 43 Gardner St | Mon–Fri 11:00–18:00 |
| Maestoso Music/Spanish Guitars (visit by appointment only) | Distribution service | 15 Buxton Rd | Mon 09:00–20:00 |