| Arriva Herts and Essex | 55 | 55 Stevenage - Letchworth |
| Arriva Herts and Essex | 66 | 66 Waltham Cross - Waltham Abbey - Loughton - Debden (Circular) |
| Arriva Herts and Essex | 824 | 824 J.f. Kennedy School - Adeyfield |
| Arriva Herts and Essex | 5 | 5 Stevenage : Bus Station - Broadwater (Circular) |
| Arriva Herts and Essex | 401 | 401 Welwyn Garden City - Panshanger (Circular) |
| Arriva Herts and Essex | 331 | 331 Hertford - Buntingford |
| Arriva Herts and Essex | 1 | 1 Stevenage : Chells Manor / Poplars - Bus Station |
| Arriva Herts and Essex | 6 | 6 Welwyn Garden City - Shire Park (Circular) |
| Arriva Herts and Essex | 40 | 40 Stevenage : Bus Station - Broadwater (Circular) |
| Arriva Herts and Essex | 320 | 320 Hemel Hempstead, Railway Stn - Rickmansworth, Berry Lane Estate |
| Arriva Herts and Essex | 100|Sapphire | 100|Sapphire Luton - Stevenage |
| Arriva Herts and Essex | 310 | 310 Waltham Cross - Hertford |
| Arriva Herts and Essex | 300 | 300 Hemel Hempstead - Stevenage |
| Arriva Herts and Essex | 7 | 7 Bus Station - Great Ashby (Circular) |
| Arriva Herts and Essex | 2 | 2 Hemel Hempstead : Bennetts End / Railway Stn - Woodhall Farm |
| Arriva Herts and Essex | 2 | 2 Stevenage - Stevenage |
| Arriva Herts and Essex | 50 | 50 Stevenage : Bus Station - Broadwater (Circular) |
| Arriva Herts and Essex | 101 | 101 Hemel Hempstead - Jarman Park (Circular) |
| Arriva Herts and Essex | 98 | 98 Baldock - Hitchin |
| Arriva Herts and Essex | 86 | 86 Harlow - Nazing - Waltham Cross (Circular) |
| Arriva Herts and Essex | 403 | 403 W G City, Great Ganett - Haldens (Circular) |
| Arriva Herts and Essex | 6 | 6 Bus Station - - Shephall (Circular) |
| Arriva Herts and Essex | 4 | 4 Stevenage : Bus Station - Broadwater (Circular) |
| Arriva Herts and Essex | 8 | 8 Stevenage : Bus Station - Symonds Green / Bragbury End (Circular) |
| Arriva Herts and Essex | 301 | 301 Hemel Hempstead - Stevenage |
| Arriva Herts and Essex | 520 | 520 Maple Cross - Hemel Hempstead |
| Arriva Herts and Essex | 395 | 395 Hertford, Sele Farm - Ware, Fanham Common |
| Arriva Herts and Essex | 396 | 396 Hertford, Sele Farm - Town Centre |
| Arriva Herts and Essex | 10 | 10 Church Langley - Central Harlow (Circular) |
| Arriva Herts and Essex | 4 | 4 Grovehill West - Hemel Hempstead Railway Station |
| Arriva Herts and Essex | 3 | 3 Hemel Hempstead : Marlowes - Warners End - Chaulden - Marlowes |
| Arriva Herts and Essex | 308 | 308 Bishop's Park - Bishops Stortford Station - Stansted Airport |
| Arriva Herts and Essex | SFCS | SFCS Stevenage: Football Ground - Bus Station |
| Arriva Herts and Essex | 3 | 3 Stevenage : Bus Station - St Nicholas (Circular) |
| Arriva Herts and Essex | 9 | 9 Stevenage : Bus Station - Symonds Green / Poplars (Circular) |
| Arriva Herts and Essex | 10 | 10 Woodside - Holywell Estate (Circular) |
| Arriva Herts and Essex | 856 | 856 John Henry Newman School - Six Hills Way |
| Arriva London North | 279 | 279 Manor House - Waltham Cross |
| Arriva London North | N279 | N279 London Trafalgar Square - Waltham Cross |
| Arriva London North | 313 | 313 Chingford - Potters Bar |
| Bishops Stortford Community Transport | Stortford Shuttle | Stortford Shuttle Bishops Stortford : H&E Hospital Via Bishop's Stortford (Circular) |
| Bishops Stortford Community Transport | Stortford Saturday Shopper | Stortford Saturday Shopper Herts & Essex Hospital - Town Centre - Thorley - Parsonage Estate |
| C G Myall & Son | 15 | 15 Royston - Haslingfield |
| C G Myall & Son | 27 | 27 Royston - Bishops Stortford |
| C G Myall & Son | 20 | 20 Anstey - Bishops Stortford |
| C G Myall & Son | 24 | 24 Royston Town Service |
| C G Myall & Son | 386 | 386 Bishops Stortford - Braughing |
| C G Myall & Son | 28 | 28 Buntingford - Bishops Stortford |
| Carousel Buses | 103|Chiltern Hundreds | 103|Chiltern Hundreds High Wycombe - Beaconsfield - Amersham - Watford |
| Carousel Buses | 1A | 1A High Wycombe - Amersham - Chesham |
| Carousel Buses | X103 | X103 High Wycombe - Watford |
| Centrebus | 178 | 178 Bus Station - Shephall (Circular) |
| Centrebus | M4 | M4 Hertford - Ware |
| Centrebus | 390 | 390 Stevenage - Hertford - (Ware) |
| Centrebus | M3 | M3 Ware : Railway Station - Wareside (Circular) |
| Centrebus | M1 | M1 Ware : Watton Road - Railway Station |
| Centrebus | 305 | 305 Sandridge - St Albans - Tyttenhanger / Welham Green |
| Centrebus | 380 | 380 Cuffley - Hertford |
| Centrebus | 80 | 80 Hitchin - Stevenage |
| Centrebus | 304 | 304 Hitchin - Sandridge - St Albans - Colney Heath / Welham Green |
| Centrebus | 314 | 314 Hitchin - Welwyn Garden City |
| Centrebus | 315 | 315 Kimpton - Welwyn Garden City |
| Centrebus | M2 | M2 Ware : Railway Station - Fanham Common (Circular) |
| Centrebus | 40 | 40 Dunstable & Kensworth Circular Route |
| Centrebus | 388 | 388 Welwyn Garden City - Hertford |
| Centrebus | 18 | 18 Buntingford - Royston |
| Centrebus | 333 | 333 Hertford - Bengeo (Circular) |
| Centrebus | 96A | 96A Letchworth - Stotfold - Arlesey - Letchworth |
| Centrebus | 10 | 10 Stevenage - Old Town (Circular) |
| Centrebus | 96 | 96 Letchworth - Arlesey - Stotfold - Letchworth |
| Centrebus | 40A | 40A Dunstable & Kensworth Circular Route |
| Centrebus | H4 | H4 Hertford North Station - Horns Mill |
| Centrebus | M5 | M5 Ware : Railway Station - Lower Bourne Gardens (Circular) |
| Centrebus | H3 | H3 Horns Mill - Campfield Road (Circular) |
| Centrebus | 81A | 81A Westmill Estate - Purwell |
| Centrebus | H1 | H1 Hertford - Pinehurst (Circular) |
| Centrebus | 379 | 379 Stevenage - Hertford |
| Centrebus | 308 | 308 Cuffley - Hertford |
| Centrebus | 847 | 847 Roundwood Park School - Flamstead |
| Centrebus | 378 | 378 Stevenage - Hertford |
| Centrebus | 81 | 81 Westmill Estate - Purwell |
| Community Action Dacorum | 207 | 207 Hemel Hempstead - Wigginton / Marsworth |
| Community Action Dacorum | 212 | 212 Woodwells Cemetery - Hemel Hempstead |
| Emsworth & District | 44A | 44A Bosham - Nutbourne - Bourne School |
| Ensign Bus | 88 | 88 (Lakeside) - Stifford Clays - Socketts Heath - Grays |
| Ensign Bus | 73 | 73 Lakeside - Grays - Chadwell St Mary - Tilbury |
| EOS | 13 | 13 Epping - Ivy Chimneys - Waltham Abbey - Waltham Cross |
| EOS | 66A | 66A Waltham Cross - Waltham Abbey - Loughton - Debden (Circular) |
| Epping Forest Community Transport | 347 | 347 Hatfield Broad Oak - Sheering - Sawbridgeworth - Eastwick - Harlow |
| Epping Forest Community Transport | C392 | C392 Tylers Cross - Broadley Common - Nazeing - Broxbourne - Hoddesdon |
| Epping Forest Community Transport | 212 | 212 Waltham Cross - Waltham Abbey (Circular) |
| Epping Forest Community Transport | 211 | 211 Waltham Abbey - Waltham Cross |
| Epping Forest Community Transport | SB01 | SB01 Hoddesdon - Broxbourne - Nazeing - Dobbs Weir |
| Flittabus | FL10 | FL10 Maulden - Clophill - Silsoe - Wardhedges - Flitton - Greenfield - Pulloxhill - Hitchin |
| Green Line (operated by Arriva the Shires) | 759 | 759 Hemel Hempstead - Woodhall Farm |
| Harpenden Connect | HHS | HHS Harpenden : Derwent Road - West Common Way (Circular) |
| Landmark Coaches | 53 | 53 Letchworth - Wilbury Hills (Circular) |
| Little Jim's | 502 | 502 Hemel Hempstead - Northchurch |
| Little Jim's | 532 | 532 Hemel Hempstead - Northchurch |
| London Sovereign | 142 | 142 Brent Cross - Watford |
| London Sovereign | 258 | 258 South Harrow - Watford |
| Marshalls Coaches | 772 | 772 London - Linslade |
| MET Coaches | PB1 | PB1 Hemel Hempstead : Maylands Avenue - Town Centre - Rail Station |
| MET Coaches | PB2 | PB2 Hemel Hempstead : Maylands Avenue - Rail Station - Town Centre - Maylands Avenue (Circular) |
| Metroline Travel | 491 | 491 North Middlesex Hospital - Waltham Cross |
| Metroline Travel | 107 | 107 New Barnet - Edgware |
| Metroline Travel | 242 | 242 Potters Bar - Waltham Cross |
| Metroline Travel | PB1 | PB1 Potters Bar - Rushfield (Circular) |
| Metroline Travel | 317 | 317 Enfield - Waltham Cross |
| Metroline Travel | 331 | 331 Uxbridge - Ruislip |
| Mullany's Buses | 311 | 311 Leavesdon Studios Tour - Watford Junction |
| Mullany's Buses | 318 | 318 Watford - Abbots Langley |
| Newbury & District | 124 | 124 Wash Common - Newbury - Speen |
| Newbury & District | 123 | 123 Newbury - Hambridge Road - Racecourse Estate - Greenham - Tesco, The Triangle |
| Newbury & District | 103X | 103X Newbury : Bus Station - The Oaks |
| Newbury & District | 103 | 103 Newbury - Greenham Business Park |
| Newbury & District | 103B | 103B Newbury - Greenham Business Park |
| Newbury & District | 1B | 1B Newbury - Thatcham |
| Newbury & District | 123C | 123C Newbury - Hambridge Road - Racecourse Estate - Greenham - Tesco, The Triangle |
| Newbury & District | 1D | 1D |
| Reading Buses | F33 | F33 Madejski Stadium - Earley Gate (University) |
| Reading Buses | F23 | F23 Madejski Stadium - Purley - Pangbourne |
| Red Eagle | 30 | 30 Aldbury - Hemel Hempstead |
| Red Eagle | KL80 | KL80 Kings Langley School - Kings Langley |
| Red Eagle | 319 | 319 Chipperfield - North Watford (Circular) |
| Red Eagle | 61A | 61A Aylesbury - Tring - Eaton Bray - Totternhoe - Dunstable |
| Red Eagle | 307 | 307 Harpenden - Hemel Hempstead |
| Red Eagle | W4 | W4 Watford & Meriden Circular |
| Red Eagle | W21 | W21 Westfield Community College - Carpenders Park |
| Red Eagle | 1 | 1 Leverstock Green - Adeyfield (Circular) |
| Red Eagle | H11 | H11 Hemel Hempstead - Boxmoor / Chambersbury Lane (Circular) |
| Red Eagle | 61 | 61 Aylesbury - Tring - Eaton Bray - Totternhoe - Dunstable |
| Red Eagle | W20 | W20 Watford, Brocklesbury Close - Oxhey Hall (Circular) |
| Red Eagle | S1 | S1 St Albans: Cell Barnes - City Rail Station - City Centre |
| Red Eagle | W2 | W2 Watford & Meriden Circular |
| Red Eagle | HA1 | HA1 Harpenden, Church Green - Cross Lane Estate / Batford (Circular) |
| Red Eagle | 361 | 361 Garston / Bricket Wood - St Albans / New Greens Estate |
| Red Eagle | ML1 | ML1 Hemel Hempstead, Railway Stn - Maylands Avenue (Circular) |
| Red Eagle | 194 | 194 Chesham - St Leonards - Wiggington - Tring |
| Red Eagle | W1 | W1 Watford - Kingswood |
| Red Eagle | W3 | W3 Watford & Meriden Circular |
| Red Eagle | 31 | 31 Aldbury - Hemel Hempstead |
| Red Rose Travel | W18 | W18 Watford, Morrisons - North Bushey (Circular) |
| Red Rose Travel | W1 | W1 Garston / Watford - Maple Cross |
| Red Rose Travel | 850 | 850 Hemel Hempstead - Bovingdon |
| Red Rose Travel | 389 | 389 Wigginton / Aldbury - Tring |
| Red Rose Travel | H10 | H10 Hemel Hempstead - Boxmoor / Leverstock Green |
| Red Rose Travel | R8 | R8 North Watford - Abbots Langley / Bedmond |
| Red Rose Travel | 387 | 387 Wigginton / Aldbury - Tring |
| Red Rose Travel | 397 | 397 Wigginton / Aldbury - Tring |
| Red Rose Travel | W19 | W19 Watford - Carpenders Park (Circular) |
| Red Rose Travel | W30 | W30 Watford - Business Park (Circular) |
| Redline | 50 | 50 Aylesbury - Wendover - Tring - Ivinghoe |
| Redline | S4 | S4 St Albans : Railway Station - Cottonmill Estate (Circular) |
| Redline | 164 | 164 Aylesbury - Tring - Cheddington (Circular) |
| Redline | S5 | S5 St Albans : St Peter's Street - Cottonmill Estate (Circular) |
| Richardson Travel | 991 | 991 Petworth - Bohunt School |
| Richardson Travel | 997A | 997A Beacon Hill - Hindhead - Liphook Bohunt School |
| Richardson Travel | 997B | 997B Grayshott - Liphook Bohunt School |
| Richardson Travel | 998 | 998 Midhurst - Trotton - Liss - Liphook Bohunt School |
| Richardson Travel | 996 | 996 Northchapel - Haslemere - Bohunt School |
| Richardson Travel | 990 | 990 Petersfield - Sheet - Hillbrow - Rake - Liphook Bohunt School |
| Richmonds Coaches | 386 | 386 Bishops Stortford - Stevenage |
| Richmonds Coaches | 16 | 16 Royston Burns Road - Town Centre (Circular) |
| Star Travel | 167 | 167 Ivinghoe - Leighton Buzzard |
| Stephensons of Essex | 301 | 301 Saffron Walden - Newport - Mountfitchet - Bishop's Stortford |
| Stephensons of Essex | 444 | 444 Barley - Chrishall - Newport - Saffron Walden |
| Stephensons of Essex | 5 | 5 Stansted Airport - Lt Hallingbury - Bishop's Stortford |
| Stephensons of Essex | 446 | 446 Manuden - Berden - Langley - Newport - Saffron Walden |
| Sullivan Buses | 833 | 833 Garston, St Michael's School - South Oxhey / Carpenders Park |
| Sullivan Buses | 306 | 306 Watford - Borehamwood (Circular) |
| Sullivan Buses | 398 | 398 Potters Bar - Watford |
| Sullivan Buses | 303 | 303 Nicholas Breakspear School - Borehamwood |
| Sullivan Buses | 298 | 298 Arnos Grove - Potters Bar |
| Sullivan Buses | 331 | 331 Nicholas Breakspear School - Welwyn Garden City |
| Sullivan Buses | B3 | B3 Borehamwood Town Service Organ Hall Farm - Well End Circular |
| Sullivan Buses | 327 | 327 Waltham Cross - Elsinge Estate (Circular) |
| Sullivan Buses | 358 | 358 Nicholas Breakspear School - Borehamwood |
| Sullivan Buses | 217 | 217 Turnpike Lane - Waltham Cross |
| Sullivan Buses | 823 | 823 Garston, St Michael's School - Borehamwood |
| TrustyBus | 7 | 7 Stansted Airport - Takeley - Henham - Elsenham - Bishop's Stortford |
| TrustyBus | 306 | 306 Wicken Bonhunt - Clavering - Bentfield Green - Bishop's Stortford |
| TrustyBus | 242 | 242 Welwyn Garden City / Hammond Street - Waltham Cross |
| TrustyBus | 384 | 384 Hertford - Stevenage |
| TrustyBus | 351 | 351 Bishop's Stortford - Hertford |
| TrustyBus | 424 | 424 Hertford - Harlow |
| TrustyBus | 383 | 383 Hertford - Stevenage |
| Uno | 203 | 203 Welwyn Garden City - Watton At Stone |
| Uno | 614 | 614 Queensbury - Hatfield |
| Uno | C11 | C11 Milton Keynes - Cranfield - Marston Moretaine - Kempston - Bedford |
| Uno | 602 | 602 Watford - Shenley - St Albans - Hatfield |
| Uno | C10 | C10 Milton Keynes - Newport Pagnell - North Crawley - Cranfield - Kempston - Bedford |
| Uno | 51 | 51 Chipperfield - Hemel Hempstead |
| Uno | 641 | 641 Hatfield - Hertford - Broxbourne |
| Uno | 644 | 644 Queensbury - Hatfield |
| Uno | 341 | 341 Hatfield - Hertford - Broxbourne |
| Uno | 206 | 206 Welwyn Garden City - Panshanger (Circular) |
| Uno | 601 | 601 Borehamwood - Welwyn Garden City |
| Uno | 201 | 201 Welwyn Garden City - Welham Green |
| Uno | 230 | 230 St Albans - Welwyn Garden City |
| Uno | 215 | 215 Welwyn Garden City - Codicote |
| Uno | 204 | 204 Welwyn North, Tewin & Welwyn Garden City Circular |
| Uno | R16 | R16 South Oxhey - North Watford Superstores |
| Uno | 200 | 200 London Colney - Essendon Mill |
| Uno | Inter-campus Shuttle | Inter-campus Shuttle Hatfield UH Inter-campus Shuttle |
| Uno | 657 | 657 Harpenden - Borehamwood |
| Uno | 635 | 635 Watford - Hatfield |
| Uno | H19 | H19 Hemel Hempstead - Kings Langley |
| Uno | 312 | 312 Hatfield - Bell Bar |
| Uno | 405 | 405 Welwyn Garden City - South Hatfield |
| Uno | 635 | 635 Hatfield - Hitchin |
| Vale Travel | S9 | S9 St Albans, Marshalswick - Verulam Estate (Circular) |
| Vale Travel | 352 | 352 Hemel Hempstaed - Watford |
| Vale Travel | S7 | S7 Marshalswick - Verulam Estate (Circular) |
| Vale Travel | S8 | S8 St Albans, Marshalswick - Verulam Estate (Circular) |
