| Awaiting | Field House Care Home | Hospitals/Childcare/Caring Premises | St Albans City | AL5 4BQ |
| 5 | Fingertips Preschool and Forest School | Hospitals/Childcare/Caring Premises | St Albans City | AL5 4UU |
| 5 | Fitt41 | Restaurant/Cafe/Canteen | St Albans City | AL5 2JQ |
| 5 | FizzBug BASC trading @ Crabtree Junior School | Hospitals/Childcare/Caring Premises | St Albans City | AL5 5PU |
| 5 | Fusion Childcare Services | Hospitals/Childcare/Caring Premises | St Albans City | AL5 1QD |
| 5 | Fusion Pre-School Southdown | Hospitals/Childcare/Caring Premises | St Albans City | AL5 1QD |
| 5 | Gail's Bakery (Harpenden) | Restaurant/Cafe/Canteen | St Albans City | AL5 2RU |
| 5 | Gibraltar Castle | Pub/bar/nightclub | St Albans City | AL5 5AH |
| 5 | Giggling Squid | Restaurant/Cafe/Canteen | St Albans City | AL5 2BS |
| 4 | Godfrey's | Restaurant/Cafe/Canteen | St Albans City | AL5 2SD |
| 5 | Graffiti Restaurant | Restaurant/Cafe/Canteen | St Albans City | AL5 4SE |
| Awaiting | Grand Trunk Road | Restaurant/Cafe/Canteen | St Albans City | AL5 2SP |
| Exempt | Grounded Rituals | Other catering premises | St Albans City | AL5 |
| 5 | Gusto Catering Limited catering @ Eric Morecambe | Restaurant/Cafe/Canteen | St Albans City | AL5 2FR |
| 5 | Gym & Juice @ WeTRAIN Gym | Restaurant/Cafe/Canteen | St Albans City | AL5 1DZ |
| 5 | HCL Catering @ High Beeches Primary School | School/college/university | St Albans City | AL5 5DS |
| 5 | HCL Catering @ Katherine Warington School | School/college/university | St Albans City | AL5 5FH |
| 5 | HCL Catering @ Manland Primary School | School/college/university | St Albans City | AL5 4QW |
| 5 | HCL Catering @ Sauncey Wood Primary School | School/college/university | St Albans City | AL5 5HL |
| 5 | HCL Catering @ St Nicholas C of E V A Primary | School/college/university | St Albans City | AL5 2TP |
| 5 | HCL Catering @ The Grove Infant School | School/college/university | St Albans City | AL5 1QD |
| 5 | HCL Catering @ The Grove Junior School | School/college/university | St Albans City | AL5 1QB |
| 5 | HCL Catering @ The Lea Primary School | School/college/university | St Albans City | AL5 4LE |
| 3 | Harp's Coffee | Restaurant/Cafe/Canteen | St Albans City | AL5 4SP |
| 5 | Harpenden Bethesda Home | Hospitals/Childcare/Caring Premises | St Albans City | AL5 3DD |
| 5 | Harpenden Biltong | Other catering premises | St Albans City | AL5 |
| 5 | Harpenden Bowling Club | Pub/bar/nightclub | St Albans City | AL5 5NN |
| 5 | Harpenden Cricket Club | Pub/bar/nightclub | St Albans City | AL5 1DT |
| 5 | Harpenden Day Nursery and Preschool | Hospitals/Childcare/Caring Premises | St Albans City | AL5 4HA |
| 4 | Harpenden Food and Wine | Retailers - other | St Albans City | AL5 1LG |
| 5 | Harpenden Golf Club | Pub/bar/nightclub | St Albans City | AL5 2AX |
| 5 | Harpenden Lawn Tennis Club | Pub/bar/nightclub | St Albans City | AL5 2EF |
| Awaiting | Harpenden Rovers Youth FC | Other catering premises | St Albans City | AL5 1BJ |
| 5 | Harpenden Rugby Club | Pub/bar/nightclub | St Albans City | AL5 2BA |
| 5 | Harpenden Springs Care Home | Hospitals/Childcare/Caring Premises | St Albans City | AL5 1PX |
| 5 | Harpenden Town Football Club | Restaurant/Cafe/Canteen | St Albans City | AL5 2EF |
| 5 | Harpendenbury Farm Honey | Retailers - other | St Albans City | AL5 |
| 1 | Harris Hoole | Restaurant/Cafe/Canteen | St Albans City | AL5 2TA |
| Exempt | Healthy & Wise | Retailers - other | St Albans City | AL5 2SP |
| 5 | Hertfordshire Catering Limited | Restaurant/Cafe/Canteen | St Albans City | AL5 3AD |
| 5 | House of Hue | Retailers - other | St Albans City | AL5 |
| 3 | ICA Express | Retailers - other | St Albans City | AL5 3NF |
| Awaiting | Impact Food Group @ Harpenden Academy | School/college/university | St Albans City | AL5 4EL |
| 5 | Impact Food Group @ Sir John Lawes | School/college/university | St Albans City | AL5 4QP |
| 5 | Inn On The Green | Pub/bar/nightclub | St Albans City | AL5 2HU |
| Awaiting | Inspirado @ Bennet's Club | Restaurant/Cafe/Canteen | St Albans City | AL5 2HU |
| 5 | J&J Food and Events Ltd t/a Emilio's Lebanese Food | Mobile caterer | St Albans City | AL5 |
| 4 | JaneParkerCooking | Other catering premises | St Albans City | AL5 |
| 4 | Jas News | Retailers - other | St Albans City | AL5 1LG |
| 4 | Jelleys Meats | Retailers - other | St Albans City | AL5 1PX |