| Garden Wall Facelift | Bricklayer | 13 Fairview Rise | Mon–Fri 07:00–16:00 |
| GB Guitars Brighton | Guitar shop | 41 Prestonville Rd | Wed 09:00–17:00 |
| GB Liners Self Store | Storage facility | 3-9 Blackman St | Thu 08:30–20:00 |
| General Distribution Ltd | Security system supplier | Paxton House, 3 Home Farm Road | Mon–Fri 08:30–17:00 |
| Geo. E. Richardson & Sons Ltd | Scrap metal dealer | 53 New England St | Mon–Fri 07:00–17:00 |
| Gladstone paving Ltd | Paving contractor | 76 Upper Lewes Rd | Daily 07:30–20:00 |
| Global Occupational Health Solutions Ltd | Occupational health service | 6, Loyal Parade, Westdene Dr, Mill Rise | Mon–Fri 08:00–16:00 |
| Global Sports Collectibles | Tienda de artículos deportivos coleccionables | Open Market, Unit 5 Marshalls Row | Thu 10:00–17:00 |
| GO Telecom Ltd | Telephone company | Vantage Point, New England Rd | Mon–Fri 10:00–16:00 |
| Graduate Mentor | Career guidance service | Clifton Mews, Graduate Mentor, 4, 14 Clifton Hill | Mon–Thu 09:00–19:00 |
| Green Valleys | Honey farm | Unit 31, Marshalls Row | Sat 09:30–17:30 |
| Group 1 Brighton BMW Motorrad | BMW motorcycle dealer | Victoria Rd | Mon–Fri 08:30–18:00 |
| Guru World Foods and Spices | Food processing company | Unit 35 The, Unit 42 Marshalls Row | Thu 10:00–17:00 |
| Halisco | Mexican restaurant | 64 Preston St | Mon–Thu 12:00–21:00 |
| Hamiltone Ltd. | Computer shop | 38A Station Rd | Thu–Fri 09:00–17:30 |
| Handywoman services Brighton | Handyman/Handywoman/Handyperson | Madehurst Cl | Thu 09:00–18:00 |
| Happy Hull | Boat accessories supplier | Unit 3, 25 Ditchling Rise | Mon–Thu 09:00–17:00 |
| Happy Nest Nanny and Maternity Agency Brighton | Childcare agency | 69 Queens Rd | Mon 10:00–18:00 |
| Harpers Healthcare Warehouse & Distribution Centre | Warehouse | 2 Hollingdean St | Tue 09:00–17:45 |
| Haxon | Insurance broker | 3, Clifton Mews, 14 Clifton Hill | Thu 09:00–17:00 |
| Healthy Hot Tubs Ltd | Hot tub repair service | 125 Preston Rd | Mon–Sat 09:30–17:00 |
| Heatleaders | Gas engineer | Viaduct Rd | Mon 08:00–18:00 |
| Hello Baby Brighton - Hypnobirthing and Doula Services | Pregnancy care centre | Loder Rd | Daily Open 24 hours |
| Hollywood Secret Service | Media consultant | 15-17 Middle St | Mon–Fri 09:00–19:00 |
| House Clearance Centre | House clearance service | 50 Church Rd | Mon 09:00–16:00 |
| Hove Gelato | Dessert shop | 2 Boundary Rd | Mon–Thu 11:00–23:00 |
| HypnoSpace - Hypnotherapy | Hypnotherapy service | Dyke Rd | Mon–Fri 12:00–19:00 |
| Hyve Managed Hosting | Web hosting company | The Office, 1 Market Sq, Circus St | Daily Open 24 hours |
| Independent Plumbing & Heating Supplies | Plumbers' merchant | 148 Carden Hill | Mon 07:30–17:00 |
| Inshur | Insurance company | 1 Jubilee St | Thu 08:30–18:00 |