- Aanda Travel Services
- 01707 333333 - Unit 4, Tewin Road Business Centre, Garden Court, Welwyn Garden City, Hertfordshire, AL7 1BH
- A1 Taxis
- 01923 461000 - 815 St. Albans Road, Watford, Hertfordshire, WD25 0LE
- Abbey Astar Cars
- 01727 855555 - Capstan House, 182 Hatfield Road, St. Albans, Hertfordshire, AL1 4JG
- Abbey Astar Cars
- 01727 846111 - Capstan House, 182 Hatfield Road, St. Albans, Hertfordshire, AL1 4JG
- Abbey Astar Cars
- 01727 833822 - Capstan House, 182 Hatfield Road, St. Albans, Hertfordshire, AL1 4JG
- Abbots Cars
- 0845 3477669 - Unit 2 Katherine Place College Road, Abbots Langley, WD5 0BT
- Acre Cars
- 01992 450688 - 23 Gosse Close, Hoddesdon, Hertfordshire, EN11 9FG
- Airport Specialist
- 01727 844447 - 360 Hatfield Road, St. Albans, Hertfordshire, AL4 0DU
- Airport Taxis of St. Albans
- 30 Taylor Close, St. Albans, Hertfordshire, AL4 9YB
- Airport Taxis Welling
- 01707 373666 - Fretherne Chmbs Fretherne Rd, Welwyn Garden City, Hertfordshire, AL8 6NY
- Alban Cab Company
- 01727 837777 - 64 Riverside Road, St. Albans, Hertfordshire, AL1 1SD
- Allied Taxis
- 01923 212121 - 68a Cassiobury Park Avenue, Watford, Hertfordshire, WD18 7LE
- Allied Taxis
- 01923 250502 - 68a Cassiobury Park Avenue, Watford, Hertfordshire, WD18 7LE
- Area Cars
- 01923 711588 - 307 Uxbridge Road, Mill End, Rickmansworth, Hertfordshire, WD3 8DS
- Arena Taxis
- 01727 831122 - Canberra Ho London Rd, St Albans, AL1 1LF
- Black Taxis
- 01992 444444 - 39-41 High Road, Wormley, Broxbourne, Hertfordshire, EN10 6HT
- Broxbourne Station Cars
- 01992 464007 - Broxbourne & Hoddesdon B R S Station Rd, Broxbourne, Hertfordshire, EN10 7AW
- Cab Cars
- 01923 260700 - 36 The Garth, Abbots Langley, Hertfordshire, WD5 0JJ
- Carpenders Park Taxis Rank
- 020 84283700 - Station App Prestwick Rd, Watford, Hertfordshire, WD19 7DT
- City Cars
- 01707 321123 - 21a Broadwater Road, Welwyn Garden City, Hertfordshire, AL7 3BQ
- Colney Taxi Service
- 01727 823365 - 271 High Street, London Colney, St. Albans, Hertfordshire, AL2 1HA
- Goldline Taxis Ltd
- 01727 833333 - 83b Hatfield Road, St. Albans, Hertfordshire, AL1 4JL
- Hilltop Taxis
- 01707 271266 - 30 High View, Hatfield, Hertfordshire, AL10 8HZ
- John Webb Private Hire
- 01727 761676 - 16 Spencer Gate, St. Albans, Hertfordshire, AL1 4AD
- Kimberley Cars
- 01727 861693 - 25 Gresford Close, St. Albans, Hertfordshire, AL4 0UB
- Lucketts Taxi & Hire Cars
- 01923 228328 - 15 King Street, Watford, Hertfordshire, WD18 0BW
- Park Street Radio Cars
- 01727 768558 - Park Street, St. Albans, Hertfordshire, AL2 2BG
- Reachers
- 020 83864454 - Hartsbourne Ho Delta Gain, Watford, Hertfordshire, WD19 5EF
- RSM Cars
- 01992 461092 - 39-41 High Road, Wormley, Broxbourne, Hertfordshire, EN10 6HT
- Swallow Car Taxi Service
- 01992 442844 - 26 Pindar Road, Hoddesdon, Hertfordshire, EN11 0DE
- Tower Taxis
- 01992 448877 - Cavendish Ho Plumpton Rd, Hertford, EN11 0ES
- Tower Taxi's
- 01992 448877 - Cavendish Ho Plumpton Rd, Hoddesdon, Hertfordshire, EN11 0EP
- Tudor Cars
- 01923 285452 - 6 Station App, Mill End, Rickmansworth, Hertfordshire, WD3 8HY
- Zam Cars
- 01727 866099 - 57 Catherine Street, St Albans, AL3 5BN
- I Vellani
- 01992 468399 - 1 St. Augustines Close, Broxbourne, Hertfordshire, EN10 7NB
- Village Cars
- 020 89509595 - High Street, Bushey, Hertfordshire, WD23 1TT
- White Lion Taxis
- White Lion House, Town Centre, Hatfield, Hertfordshire, AL10 0JL
- A C C Eastcote Car Service
- 020 88688666 - Eastcote Stn Field End Rd, Pinner, Middlesex, HA5 1QZ
- Ace Cars
- 01923 829111 - Station Approach, Northwood, Middlesex, HA6 2XN
- Alliance Cars
- 020 84211777 - Pickwalk Wlk Uxbridge Rd, Pinner, Middlesex, HA5 4HS
- Alltime Radio Cars
- 01895 270002 - 46 Windsor Rd, Uxbridge, WD1 1BB
- Churchmede
- 01923 823233 - 18 High Street, Northwood, Middlesex, HA6 1BN
- A1 Co-operative Taxis
- 01992 505252 - Combar Ho Mead La, Hertford, SG13 7AS
- B A Taxis
- 01992 303222 - 8 Cranborne Close, Hertford, Hertfordshire, SG13 8HU
- Brians Taxi's
- 01992 559000 - 188 Newland Gardens, Hertford, Hertfordshire, SG13 7WZ
- Chauffeur Line
- 0808 00505252 - 14 Beane Road Watton At Stone, Hertfordshire, SG14 3RG
- County Cars
- 01992 552455 - 17 Ware Road, Hertford, Hertfordshire, SG13 7DZ
- Deejay Taxis
- 01992 302030 - 2, 31 Maidenhead Street, Hertford, Hertfordshire, SG14 1DW
- First Choice Limousines
- 01992 303060 - 5 Chiltern Close, Ware, Hertfordshire, SG12 0RN
- Hills Taxi
- 01920 467713 - Northfield Cambridge Rd, Thundridge, Ware, Hertfordshire, SG12 0SU
- J.M Transport Services
- 01920 830705 - 87 High Street, Watton At Stone, Hertford, Hertfordshire, SG14 3SZ
- Kestral Cabs
- 01920 871877 - Station Road, Stanstead Abbotts, Ware, Hertfordshire, SG12 8DS
- Lovesgroves Cabs
- 01992 500100 - Hertford North Stn North Rd, Hertford, Hertfordshire, SG14 1NB
- Steve Taxis
- 01992 554299 - 238 Ware Road, Hertford, Hertfordshire, SG13 7HB
- Town & Country Car Service
- 01920 823305 - Green Ley Cotts Hadham Rd, Standon, Hertfordshire, SG11 1LH
- Ware Station Taxis
- 01920 486262 - Ware Stn Station Rd, Ware, Hertfordshire, SG12 9UT
- Rlm Travel Services
- 01920 455025 - Reeves Green, Wareside, Ware, Hertfordshire, SG12 7QR
- Windsor Taxis
- 01992 553222 - 53 Windsor Drive, Hertford, Hertfordshire, SG14 2HX
- A Class Taxis
- 01462 422228 - 33 Highover Wy, Hitchin, Hertfordshire, SG4 0RG
- A1 Taxis
- 01442 246000 - Flat, 4 Maylands Avenue, Hemel Hempstead Industrial Estate, Hemel Hempstead, Hertfordshire, HP2 4SE
- A1 Tony's Taxis
- 01462 686810 - 42 Radburn Wy, Letchworth Garden City, Hertfordshire, SG6 2JW
- A2b Taxis
- 01442 211101 - 35 Epping Gn, Hemel Hempstead, Hertfordshire, HP2 7JP
- AA Airport Cabs & Taxis
- 01442 234567 - 30 Knightsbridge Wy, Hemel Hempstead, Hertfordshire, HP2 5ES
- AAA Airport Cabs & Taxis
- 01442 240311 - 30 Knightsbridge Wy, Hemel Hempstead, Hertfordshire, HP2 5ES
- ASAP Taxis
- 01438 816789 - 11d Station Road, Knebworth, Hertfordshire, SG3 6AP
- Berkhamsted Cab Services
- 01442 877899 - 6 Curlew Close, Berkhamsted, Hertfordshire, HP4 2HZ
- Castle Taxis
- 01462 432666 - Unit 6, Theobold Bsns Cntr, Knowl Piece, Wilbury Way, Hitchin, Hertfordshire, SG4 0TY
- Concorde Cars
- 01442 264525 - 6 Alison Court, Wood End Close, Hemel Hempstead, Hertfordshire, HP2 4QA
- G & M Cars
- 01462 486715 - 5 Woodhurst, Letchworth Garden City, Hertfordshire, SG6 4LY
- Garys Taxis
- 01462 484888 - Pixmore Cntr Pixmore Av, Letchworth Garden City, Hertfordshire, SG6 1JG
- Geoffs Taxi
- 01462 683313 - Grange Est, Stevenage, SG16 4RP
- J & B Taxis & Private Hire
- 01442 264499 - 47 Paston Road, Hemel Hempstead, Hertfordshire, HP2 5AZ
- Jaspal's Taxis
- 01462 480194 - 14 Unwin Close, Letchworth Garden City, Hertfordshire, SG6 3RS
- K.P Hire Taxis
- 01582 769694 - 37 Hyde View Road, Harpenden, Hertfordshire, AL5 4PA
- K & P Taxis
- 01462 482166 - Pixmore Cntr Pixmore Av, Letchworth Garden City, Hertfordshire, SG6 1JG
- Lannis Taxi's
- 01462 894088 - Unit 15a Pixmore Ctr, Baldock, Hertfordshire, SG7 6PB
- Martini's Taxis
- 01462 486666 - Pixmore Centre, Pixmore Avenue, Letchworth Garden City, Hertfordshire, SG6 1JG
- Maurices Private Hire
- 01767 316438 - Unit A, 147 London Road, Biggleswade, Bedfordshire, SG18 8EJ
- Mbcars Licsd Taxi's
- 01442 404111 - 94 Hobbs Hl Rd, Hemel Hempstead, Hertfordshire, HP3 9QG
- J Philbin
- 01442 389090 - 18 Upper Barn, Hemel Hempstead, Hertfordshire, HP3 9QQ
- SSR Taxis
- 01582 794999 - Redbourn Road, St Albans, Hertfordshire, AL3 6RP
- Stevenage Taxi's
- 01438 850004 - 1 Caxton Wy, Stevenage, Hertfordshire, SG1 2DF
- Stotfold Cars
- 07071 202968 - 44 Regent Street, Stotfold, Hitchin, Hertfordshire, SG5 4EA
- Sunrise Taxi's
- 01442 245151 - 6 Grange Close, Hemel Hempstead, Hertfordshire, HP2 4JG
- Taxi Rank
- 01442 255000 - Marlowes, Hemel Hempstead, Hertfordshire, HP1 1BB
- Taylors Taxis
- 01462 679101 - 48 Yardley, Letchworth Garden City, Hertfordshire, SG6 2ST
- Tinys Taxis Ltd Hitchin
- 01462 888888 - Desmond Court. Kings Road, Hitchin, Hertfordshire, SG5 1RD