| Carousel Buses | 103|Chiltern Hundreds | 103|Chiltern Hundreds High Wycombe - Beaconsfield - Amersham - Watford |
| Carousel Buses | 1A | 1A High Wycombe - Hazlemere - Amersham - Chesham |
| Carousel Buses | 1 | 1 High Wycombe - Hazlemere - Amersham - Chesham (- Hemel Hempstead) |
| Red Eagle | 194 | 194 Chesham - St Leonards - Wiggington - Tring |
| Red Eagle | 62 | 62 Aylesbury - Cheddington - Aylesbury |
| Redline | 50 | 50 Aylesbury - Wendover - Tring - Ivinghoe |
| Arriva (in Herts and Essex) | 251 | 251 Waltham Abbey - Waltham Cross - Cheshunt - Hammond Street |
| Arriva (in Herts and Essex) | 308 | 308 Bishop's Park - Bishops Stortford Station - Stansted Airport |
| Arriva (in Herts and Essex) | 309 | 309 Bishop's Stortford - Stansted Airport |
| Arriva (in Herts and Essex) | 508 | 508 Stansted Airport - Bishop's Stortford - Sawbridgeworth - Harlow |
| Arriva (in Herts and Essex) | 509 | 509 Stansted Airport - Bishop's Stortford - Sawbridgeworth - Harlow |
| Arriva (in Herts and Essex) | 510 | 510 Stansted Airport - Bishop's Stortford - Sawbridgeworth - Harlow |
| Arriva (in Herts and Essex) | 66 | 66 Waltham Cross - Waltham Abbey - Loughton - Debden (Circular) |
| Arriva (in Herts and Essex) | 86 | 86 Harlow - Nazing - Waltham Abbey - Waltham Cross |
| Epping Forest Community Transport | 211 | 211 Waltham Abbey - Waltham Cross |
| Epping Forest Community Transport | 212 | 212 Waltham Cross - Waltham Abbey (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 |
| Stephensons of Essex | 444 | 444 Barley - Chrishall - Newport - Saffron Walden |
| Stephensons of Essex | 446 | 446 Manuden - Berden - Langley - Newport - Saffron Walden |
| Central Connect | 301 | 301 Bishop's Stortford - Stansted Mountfitchet - Saffron Walden |
| Central Connect | 305 | 305 Stansted Airport - Takeley - Hatfield Heath - Bishop's Stortford |
| Central Connect | 306 | 306 Wicken Bonhunt - Clavering - Bentfield Green - Bishop's Stortford |
| Central Connect | 322 | 322 Lindsell - Gt Dunmow - Takeley - Parsonage Est - Bishop's Stortford |
| Central Connect | 323 | 323 Gt Dunmow - Takeley - Parsonage Est - Bishop's Stortford |
| Central Connect | 324 | 324 Stebbing - Gt Dunmow - Takeley - Parsonage Est - Bishop's Stortford |
| Central Connect | 325 | 325 Bishop's Stortford - Great Hallingbury (Circular) |
| Central Connect | 66A | 66A Waltham Cross - Waltham Abbey - Debden - Loughton |
| Central Connect | 7A | 7A Stansted Airport - Takeley - Henham - Elsenham - Bishop's Stortford |
| Central Connect | 7 | 7 Stansted Airport - Takeley - Henham - Elsenham - Bishop's Stortford |
| Vectare | 13A | 13A St Margaret - S Hosp - Epping Station - Waltham Abbey - Waltham Cross |
| Vectare | 13C | 13C North Weald - Epping - Waltham Cross |
| Vectare | 13 | 13 St Margaret - S Hosp - Epping - Waltham Abbey - Waltham Cross |
| Vectare | 14 | 14 Waltham Cross Bus Stn - Waltham Abbey |
| Vectare | 22A | 22A Highbridge Roundabout - Waltham Cross |
| Vectare | 22 | 22 Shernbroke Road - Waltham Abbey - Waltham Cross |
| Arriva (in Herts and Essex) | 100|Sapphire | 100|Sapphire Luton - Stevenage |
| Arriva (in Herts and Essex) | 101|Sapphire | 101|Sapphire Luton - Stevenage |
| Arriva (in Herts and Essex) | 10 | 10 Holywell Estate - Abbots Langley |
| Arriva (in Herts and Essex) | 20 | 20 Holywell Estate - Hemel Hempstead |
| Arriva (in Herts and Essex) | 2 | 2 Hemel Hempstead : Bennetts End / Railway Stn - Woodhall Farm |
| Arriva (in Herts and Essex) | 301 | 301 St Albans - Stevenage |
| Arriva (in Herts and Essex) | 302 | 302 Hemel Hempstead - Welwyn Garden City |
| Arriva (in Herts and Essex) | 304 | 304 Wheathampstead - St Albans |
| Arriva (in Herts and Essex) | 308 | 308 Cuffley - Hertford |
| Arriva (in Herts and Essex) | 310 | 310 Waltham Cross - Hertford |
| Arriva (in Herts and Essex) | 311 | 311 Bishops Stortford Interchange - Stortford Fields |
| Arriva (in Herts and Essex) | 324 | 324 Ware - Welwyn Garden City |
| Arriva (in Herts and Essex) | 331 | 331 Hertford - Buntingford |
| Arriva (in Herts and Essex) | 335 | 335 Amersham - Watford |
| Arriva (in Herts and Essex) | 336 | 336 Amersham - Watford |
| Arriva (in Herts and Essex) | 357 | 357 Harpenden - Borehamwood |
| Arriva (in Herts and Essex) | 378 | 378 Stevenage - Hertford |
| Arriva (in Herts and Essex) | 379 | 379 Stevenage - Hertford |
| Arriva (in Herts and Essex) | 380 | 380 Cuffley Rail Sation - Hertford Bus Station |
| Arriva (in Herts and Essex) | 390 | 390 Stevenage - Ware / Hertford |
| Arriva (in Herts and Essex) | 395 | 395 Hertford, Sele Farm - Ware, Fanham Common |
| Arriva (in Herts and Essex) | 3 | 3 Hemel Hempstead - Grovehill (Circular) |
| Arriva (in Herts and Essex) | 401 | 401 Welwyn Garden City - Panshanger (Circular) |
| Arriva (in Herts and Essex) | 403 | 403 W G City, Great Ganett - Haldens (Circular) |
| Arriva (in Herts and Essex) | 4 | 4 Grovehill - Warners End (Circular) |
| Arriva (in Herts and Essex) | 500 | 500 Watford - Aylesbury |
| Arriva (in Herts and Essex) | 500 | 500 Watford - Aylesbury |
| Arriva (in Herts and Essex) | 55 | 55 Stevenage - Letchworth |
| Arriva (in Herts and Essex) | 6 | 6 Welwyn Garden City - Shire Park (Circular) |
| Arriva (in Herts and Essex) | 821 | 821 Maple Cross - Watford |
| Arriva (in Herts and Essex) | 824 | 824 J.f. Kennedy School - Adeyfield |
| Arriva (in Herts and Essex) | 856 | 856 John Henry Newman School - Six Hills Way |
| Arriva (in Herts and Essex) | 8 | 8 Mount Vernon Hospital - Watford |
| Arriva (in Herts and Essex) | 98 | 98 Baldock - Hitchin |
| Arriva (in Herts and Essex) | 9 | 9 Leavesden Park - Watford Town Centre |
| Arriva (in Herts and Essex) | C1 | C1 Cuffley Rail Station - Rosedale Estate |
| Arriva (in Herts and Essex) | M2 | M2 Ware: Railway Station - Kingsway / Watton Rd |
| Arriva (in Herts and Essex) | M3 | M3 Ware: Railway Station - Wareside (Circular) / Hertford |
| Arriva (in Herts and Essex) | M4 | M4 Ware: Railway Station - Presdales - Wareside |
| Arriva (in Herts and Essex) | M5 | M5 Ware: Railway Station - Lower Bourne Gardens (Circular) |
| Arriva (in Herts and Essex) | SB10 | SB10 Stevenage - Old Town (Circular) |
| Arriva (in Herts and Essex) | SB11 | SB11 Stevenage Inner Circle - Old Town (Circular) |
| Arriva (in Herts and Essex) | SB1 | SB1 Stevenage: Chells Manor / Poplars - Bus Station |
| Arriva (in Herts and Essex) | SB2 | SB2 Stevenage: Bus Station - St Nicholas (Circular) |
| Arriva (in Herts and Essex) | SB3 | SB3 Stevenage: Bus Station - St Nicholas (Circular) |
| Arriva (in Herts and Essex) | SB40 | SB40 Stevenage: Bus Station - Broadwater - Gunnels Wood (Circular) |
| Arriva (in Herts and Essex) | SB4 | SB4 Stevenage; Bus Station - Broadwater (Circular) |
| Arriva (in Herts and Essex) | SB50 | SB50 Stevenage: Bus Station - Broadwater (Circular) |
| Arriva (in Herts and Essex) | SB5 | SB5 Stevenage: Bus Station - Broadwater (Circular) |
| Arriva (in Herts and Essex) | SB6 | SB6 Stevenage: Bus Station - Shephall (Circular) |
| Arriva (in Herts and Essex) | SB7 | SB7 Stevenage: Bus Station - Great Ashby (Circular) |
| Arriva (in Herts and Essex) | SB8 | SB8 Stevenage: Bus Station - Symonds Green / Bragbury End (Circular) |
| Arriva (in Herts and Essex) | SB9 | SB9 Stevenage: Bus Station - Symonds Green / Poplars (Circular) |
| Bishop's Stortford Community Transport CIO | Stortford Shuttle | Stortford Shuttle Bishops Stortford : H&E Hospital Via Bishop's Stortford (Circular) |
| Bishop's Stortford Community Transport CIO | Stortford Saturday Shopper | Stortford Saturday Shopper Herts & Essex Hospital - Town Centre - Thorley - Parsonage Estate |
| Centrebus South | 304 | 304 Hitchin - St Albans |
| Centrebus South | 80 | 80 Hitchin - Stevenage |
| Centrebus South | 81A | 81A Westmill Estate - Purwell |
| Centrebus South | 81 | 81 Westmill Estate - Purwell |
| Centrebus South | SB10 | SB10 Stevenage - Old Town (Circular) |
| Chiltern Automotive | 200 | 200 London Colney - Essendon Mill |
| Chiltern Automotive | 201 | 201 Welwyn Garden City - Welham Green |
| Chiltern Automotive | 203 | 203 Welwyn Garden City - Watton At Stone |
| Chiltern Automotive | 204 | 204 Welwyn North, Tewin & Welwyn Garden City Circular |
| Chiltern Automotive | 206 | 206 Welwyn Garden City - Panshanger (Circular) |
| Chiltern Automotive | 215 | 215 Welwyn Garden City - Codicote |
| Chiltern Automotive | 216 | 216 Welwyn Garden City - Welwyn |
| Chiltern Automotive | 230 | 230 St Albans - Welwyn Garden City |
| Chiltern Automotive | 312 | 312 Hatfield - Bell Bar |
| Community Action Dacorum | 207 | 207 Hemel Hempstead - Wigginton / Long Marston |
| Community Action Dacorum | 212 | 212 Woodwells Cemetery - Hemel Hempstead |
| Green Line (operated by Arriva) | 724 | 724 Harlow - Heathrow Airport |
| Harlequin Travel | 318 | 318 Watford - Abbots Langley |
| Harpenden Connect | HH1 | HH1 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 |
| Lucketts of Watford | 338 | 338 Radlett Rail Station - Colney Fields Retail Park |
| metcoaches | PB1 | PB1 Hemel Hempstead : Maylands Avenue - Town Centre - Rail Station |
| metcoaches | PB2 | PB2 Hemel Hempstead : Maylands Avenue - Rail Station - Town Centre - Maylands Avenue (Circular) |
| Metroline Travel | 242 | 242 Potters Bar - Waltham Cross |
| Metroline Travel | 305 | 305 Sandridge - Potters Bar |
| Metroline Travel | PB1 | PB1 Potters Bar - Rushfield (Circular) |
| Richmonds Coaches | 16 | 16 Royston Burns Road - Town Centre (Circular) |
| Richmonds Coaches | 18 | 18 Buntingford - Royston |
| Richmonds Coaches | 20 | 20 The Hormeads - Bishops Stortford |
| Richmonds Coaches | 24 | 24 Royston Town Service |
| Richmonds Coaches | 27 | 27 Royston - Bishops Stortford |
| Richmonds Coaches | 386 | 386 Bishops Stortford - Braughing |
| Richmonds Coaches | 90 | 90 Royston - Letchworth |
| Richmonds Coaches | 91 | 91 Royston - Letchworth |
| Red Eagle | 1 | 1 Leverstock Green - Adeyfield (Circular) |
| Red Eagle | 307 | 307 Harpenden - Redbourn |
| Red Eagle | 30 | 30 Berkhamsted - Hemel Hempstead |
| Red Eagle | 319 | 319 North Watford & Cassiobury Estate Circular |
| Red Eagle | 31 | 31 Berkhamsted - Hemel Hempstead |
| Red Eagle | 354 | 354 Chesham - Berhamsted / Northchurch |
| Red Eagle | 361 | 361 Garston / Bricket Wood - St Albans / New Greens Estate |
| Red Eagle | 62A | 62A Cheddington - Tring |
| Red Eagle | H11 | H11 Hemel Hempstead - Boxmoor / Chambersbury Lane (Circular) |
| Red Eagle | HA1 | HA1 Long Bufters - Harpenden, Church Green |
| Red Eagle | ML1 | ML1 Hemel Hempstead - Chaulden / Maylands Avenue (Circular) |
| Red Eagle | R1 | R1 Mount Vernon Hospital - Maple Cross |
| Red Eagle | R2 | R2 Watford / Mount Vernon Hospital - Chorleywood |
| Red Eagle | S1 | S1 St Albans: Cell Barnes - City Rail Station - City Centre |
| Red Eagle | S6 | S6 St Albans Circular |
| Red Eagle | S7 | S7 Marshalswick - Marshalswick (Circ) |
| Red Eagle | S8 | S8 Marshalswick - St Albans (Circular) |
| Red Eagle | S9 | S9 Marshalswick - St Albans (Circular) |
| Red Eagle | W1 | W1 Watford - Kingswood |
| Red Eagle | W20 | W20 North Bushey - Oxhey Hall (Circular) |
| Red Eagle | W21 | W21 Westfield Community College - Carpenders Park |
| Red Eagle | W22 | W22 The Bushey Academy - South Oxhey |
| Red Eagle | W2 | W2 Watford & Meriden Circular |
| Red Eagle | W3 | W3 Watford & Meriden Circular |
| Red Eagle | W4 | W4 Watford & Meriden Circular |
| Redline | S4 | S4 St Albans : Railway Station - Cottonmill Estate (Circular) |
| Redline | S5 | S5 St Albans, St Peter's Street - Cottonmill Estate (Circular) |
| Red Rose Travel | 387 | 387 Aldbury - Tring |
| Red Rose Travel | 389 | 389 Aldbury - Tring |
| Red Rose Travel | 397 | 397 Wigginton / Aldbury - Tring |
| Red Rose Travel | 501 | 501 Watford - Aylesbury |
| Red Rose Travel | H10 | H10 Hemel Hempstead - Boxmoor / Leverstock Green |
| Red Rose Travel | W18 | W18 Watford, Morrisons - North Bushey (Circular) |
| Red Rose Travel | W19 | W19 Watford - Carpenders Park (Circular) |
| Red Rose Travel | W1 | W1 Maple Cross - Watford / Garston |
| Red Rose Travel | W30 | W30 Watford - Croxley Business Park (Circular) |
| Sullivan Buses | 303 | 303 Nicholas Breakspear School - Hatfield |
| Sullivan Buses | 306A | 306A Garston, St Michaels School - Borehamwood |
| Sullivan Buses | 306 | 306 Watford - Borehamwood (Circular) |
| Sullivan Buses | 330 | 330 Nicholas Breakspear School - Hatfield Station |
| Sullivan Buses | 331 | 331 Nicholas Breakspear School - Welwyn Garden City |
| Sullivan Buses | 355 | 355 Nicholas Breakspear School - Carterhatch Lane |
| Sullivan Buses | 356 | 356 Nicholas Breakspear School - Potters Bar |
| Sullivan Buses | 358 | 358 Nicholas Breakspear School - Borehamwood |
| Sullivan Buses | 398 | 398 Potters Bar - Watford |
| Sullivan Buses | 832 | 832 St Michaels School - South Oxhey |
| Sullivan Buses | 833 | 833 Garston, St Michael's School - South Oxhey |
| Sullivan Buses | 84 | 84 St Albans - New Barnet |
| Sullivan Buses | B3 | B3 Borehamwood Town Service Organ Hall Farm - Well End Circular |
| Central Connect | 315 | 315 . |
| Central Connect | 333 | 333 Hertford - Bengeo (Circular) |
| Central Connect | 351 | 351 Bishop's Stortford - Hertford |
| Central Connect | 383 | 383 Hertford - Stevenage |
| Central Connect | 384 | 384 Hertford - Stevenage |
| Central Connect | 386 | 386 Bishops Stortford - Stevenage |
| Central Connect | 410 | 410 Cheshunt, Brookfield Centre - Harlow |
| Central Connect | H1 | H1 Hertford - Pinehurst (Circular) |
| Central Connect | H2 | H2 Hertford: Bus Station - Campfield Road (Circular) |
| Central Connect | H3 | H3 Hertford: Bus Station - Horns Mill (Circular) |
| Central Connect | H4 | H4 Hertford North Station - Horns Mill |
| Central Connect | H4 | H4 Hertford Bus Station - Horns Mill |
| Uno | 242 | 242 Welwyn Garden City - Waltham Cross |
| Uno | 341 | 341 Hatfield - Ware / Broxbourne |
| Uno | 404 | 404 South Hatfield - Welwyn Garden City |
| Uno | 405 | 405 South Hatfield - Welwyn Garden City |
| Uno | 51 | 51 Chipperfield - Hemel Hempstead |
| Uno | 601|The Alban Way | 601|The Alban Way Borehamwood - Welwyn Garden City |
| Uno | 602 | 602 Watford - Hatfield |
| Uno | 610|Dragonfly | 610|Dragonfly Enfield - Luton |
| Uno | 612 | 612 Hatfield - Luton |
| Uno | 614|The Comet | 614|The Comet Queensbury Station - Hatfield |
| Uno | 635 | 635 Hatfield - Hitchin |
| Uno | 635 | 635 Watford - Hatfield |
| Uno | 641 | 641 Hatfield, Business Park - Broxbourne |
| Uno | 644 | 644 Queensbury - Hatfield |
| Uno | 653|Tigermoth | 653|Tigermoth Welwyn Garden City - St Albans (New Greens Estate) |
| Uno | H19 | H19 Hemel Hempstead - Kings Langley |
| Uno | R16 | R16 South Oxhey - North Watford Superstores |
| Uno | R17 | R17 Hatch End - Carpenders Park |
| Uno | R9 | R9 North Watford - Chipperfield |
| Uno | SHTL | SHTL Hatfield: University of Hatfield Inter-Campus Shuttle |
| Vale Travel | 352 | 352 Hemel Hempstead - Watford |
| First Essex Buses Ltd | 42A | 42A STANSTED AIRPORT - GALLEYWOOD |
