| H Secure Tech | Security system installation service | 226 Dogsthorpe Rd | Mon Open 24 hours |
| HAITO Karate | Karate club | UNIT 3, Wharf Road Industrial Estate, Wharf Rd | Mon 17:30–21:00 |
| Hampton Medical Centre | Medical centre | Serpentine Green Shopping Centre, 6B The Serpentine | Mon–Fri 08:00–18:30 |
| Hampton Tax Accountants | Bookkeeping service | 26 Harn Rd | Mon–Fri 09:00–17:00 |
| Hard To Insure | Home insurance agency | Vinpenta House, 4 High Causeway | Mon–Fri 09:00–17:00 |
| Harvest Barn | Farm shop | Harvest Barn Farmshop, Whitehall Farm | Mon–Sat 09:00–16:00 |
| Hayley Perkins Psychotherapy & Clinical Hypnotherapy Services | Psychotherapist | 28A High St | Mon–Thu 10:00–18:00 |
| HD Teamwear | Clothing supplier | 4a, Treelyn Park, Welbeck Way | Mon–Fri 09:00–17:00 |
| Heritage Cleaning | Cleaning service | 64 Park Farm Wy., Portchester Cl | Mon–Fri 08:00–20:00 |
| HITECH Rooflights | Skylight contractor | 3 Tresham Rd | Mon 09:00–17:00 |
| HOBART UK Equipment | Machine maintenance service | Southgate Way | Daily 08:00–19:30 |
| Holiday Money Exchange - Westgate Arcade Peterborough | Currency exchange service | Queensgate Shopping Centre, Holiday money Exchange 12 The Arcade, Westgate | Mon–Sat 09:00–18:00 |
| Homestead | Property management company | 22 Gracious St | Mon–Thu 09:00–14:30 |
| House Of Blooms | Florist | 105 Driffield Way | Mon–Fri 09:00–17:00 |
| Httpid | Web hosting company | FA3 Limited, Northminster House, Northminster | Mon–Fri 09:00–17:00 |
| Hydrotherapy Peterborough | Aquatic centre | Lime Academy Orton Clayton Campu | Mon–Fri Open 24 hours |
| I Want Windows and Doors | Double glazing installer | 20 Alfric Square | Mon–Fri 09:00–17:00 |
| Iconic Fckin Hair | Hair replacement service | Unit 22, Orton Gate Shopping Centre, 2 Misterton | Tue 09:30–20:30 |
| Inflatables World | Children's amusement centre | One, PE1) Retail Park, Eye Rd | Mon 11:00–19:00 |
| Inspire Aerial and Gymnastics Studio | Aerial sports center | Unit 80 Culley Ct | Sat 09:30–13:00 |
| INSPIRE-IGNITE Coaching & Training | Training provider | Office 190 (via reception, Lynch Wood | Fri 09:00–17:00 |
| Inspired Gaming Lounge | Game shop | 4 Phorpres Cl | Daily 13:00–22:00 |
| Inspired Martial Arts Hampton | Martial arts school | Cygnet Park, 4 Phorpres Cl | Mon–Fri 09:00–21:00 |
| IP&G | Building equipment hire service | Commerce Rd | Mon–Fri 08:00–17:00 |
| iStitch | Dressmaker | 10 Felix Cl | Mon–Fri 09:00–18:00 |
| Italian Pizza & Kebab | Kebab shop | 6-A Hill Cl | Daily 11:00–22:00 |
| Ivory & Lace Brides | Bridal shop | Queensgate Shopping Centre, 22 Westgate | Tue–Sat 09:00–17:00 |
| Ivory Rose Lingerie | Fuller Bust Lingerie | Lingerie shop | 46 Culley Ct | Mon–Fri 09:00–15:00 |
| J&S Interiors | Curtain maker and retailer | 30 Phorpres Cl | Thu–Fri 10:00–16:00 |
| James Window Cleaning & Gutter Vacuum LTD | Window cleaning service | 98 Fulbridge Rd | Daily Open 24 hours |