| Abbey Estates – St Albans | 36 London Road St. Albans AL1 1NG |
| Acorn – Hitchin | 12 Sun Street Hitchin SG5 1AE |
| Acorn – Stevenage | 74 High Street Stevenage SG1 3EA |
| Aitchisons – Berkhamsted | 154 High Street Berkhamsted HP4 3AT |
| Aitchisons – Hemel Hempstead | 63 Marlowes Hemel Hempstead HP1 1LE |
| Aitchisons – Radlett | 299 Watling Street Radlett WD7 7LA |
| Aitchisons – St Albans | 2 Holywell Hill St Albans AL1 1BZ |
| Aitchisons – Watford | 54 Clarendon Road Watford WD17 1DU |
| Allsopp Estate Agents – Harpenden | 73 High Street Harpenden, Hertfordshire AL5 2SL |
| Ashtons – Harpenden | 10 High Street Harpenden AL5 2TB |
| Ashtons – St Albans | 10 London Road St Albans AL1 1NG |
| Ashtons – Village and Country | 48 High Street Redbourn AL3 7LN |
| Ashtons – Welwyn Garden City | 29 Wigmores North Welwyn Garden City AL8 6PG |
| Best Residential – Hitchin | 4 Pirton Grange, Pirton Road Hitchin, Hertfordshire SG5 3XE |
| Bidwells – St. Albans | 2nd Floor 45 Grosvenor Road St. Albans AL1 3AW |
| Binks – Chorleywood | Wyatts House, Rickmansworth Road Chorleywood, Hertfordshire WD3 5SE |
| Briggs & Mortimer – Royston | 20 Market Hill Royston, Hertfordshire SG8 9JG |
| Castles Estate Agents – Berkhamsted | 148 High Street Berkhamsted, Hertfordshire HP4 3AT |
| Castles Estate Agents – Boxmoor | 230 St. Johns Road Hemel Hempstead, Hertfordshire HP1 1QQ |
| Churchills – Hertford | 9 Parliament Square Hertford SG14 1EX |
| Collinson Hall – Chiswell Green | 200 Watford Road St Albans AL2 3EB |
| Collinson Hall – St Albans | 9-11 Victoria Street St Albans AL1 3JJ |
| Country Properties – Baldock | 39 High Street Baldock SG7 6BG |
| Country Properties – Buntingford | 34 High Street Buntingford SG9 9AQ |
| Country Properties – Hatfield | 7 The Broadway Old Hatfield AL9 5BG |
| Country Properties – Hitchin | 6 Brand Street Hitchin SG5 1HX |
| Country Properties – Knebworth | 117 London Road Knebworth SG3 6ET |
| Country Properties – Royston | 45 High Street Royston SG8 9AW |
| Country Properties – Stevenage | 53 High Street Stevenage SG1 3AQ |
| Country Properties – Welwyn | 10 High Street Welwyn AL6 9EQ |
| Country Properties – Welwyn Garden City | 3 Bridge Road Welwyn Garden City AL8 6NH |
| Daniels Estate Agents – St Albans | 32 London Road St. Albans AL1 1NG |
| David Doyle Estate Agents – Hemel Hempstead | 45 St Johns Road Hemel Hempstead HP1 1QQ |
| Druce & Partners – St Albans | 12 London Road St. Albans AL1 1NG |
| Elliott Residential – Watford | 133 The Parade Watford WD17 1NA |
| Ensum Brown | 110 High Street Ware SG12 9AP |
| Fairfield Estate Agents – North Watford | 190 Bushey Mill Lane Watford WD24 7PE |
| Fairfield Estate Agents – Oxhey | 33 The Parade, Prestwick Road Watford WD19 7EE |
| Fine & Country – Redbourn | 69 High Street , Redbourn Hertfordshire AL3 7LW |
| Fine & Country – Ware | 110 High Street, Ware Hertfordshire SG12 9AP |
| Friends | 99 Villiers Road Watford WD19 4AL |
| haart Estate Agents – Abbots Langley | 30 High Street Abbots Langley WD5 0AR |
| haart Estate Agents – Borehamwood | Shenley Road Borehamwood WD6 1DX |
| haart Estate Agents – Stevenage | 6 Market Place Stevenage SG1 1DB |
| haart Estate Agents – Welwyn Garden City | 23 Stonehills Welwyn Garden City AL8 6NA |
| Hamiltons Estate Agents – Berkhamsted | 233 High Street Berkhamsted, Hertfordshire HP4 1AD |
| Haydens Town and Country – Goffs Oak | 686 Goffs Lane Goffs Oak, Hertfordshire EN7 5ET |
| Home County Rentals – Harpenden | 21 The Foresters, High Street Harpenden Al5 2FB |
| Homes & Mortgages – Stevenage | 86 High Street Old Town, Stevenage SG1 3DW |
| Imagine – Bushey | 66-70 High St Bushey WD23 3HE |
| Imagine – St. Albans | Censeo House, 6 St Peters Street St. Albans AL1 3LF |
| Imagine – Watford | Block B, 26 Wilmington Close Watford WD18 0FQ |
| Imagine – WD25 | 712 St. Albans Road Watford WD25 9NQ |
| James Estate Agents – Croxley Green | 141 New Road Croxley Green, Rickmansworth WD3 3EN |
| John Curtis – Harpenden | 36 High Street Harpenden AL5 2SX |
| John Curtis Ltd – Wheathampstead | 35 High Street Wheathampstead AL4 8BB |
| Keith Ian – Buntingford | 42 High Street Buntingford SG9 9AH |
| Keith Ian – Cheshunt | 84-86 Turners Hill Cheshunt EN8 8LQ |
| Keith Ian – Ware | Old Town Hall, 70 High Street Ware SG12 9AT |
| Kings – Hatfield | 64 Town Centre Hatfield AL10 0JJ |
| Knight Frank – Berkhamsted | 136 High Street Berkhamsted HP4 3AT |
| Lane & Bennetts – Letchworth Garden City | 31 Station Road Letchworth Garden City SG6 3BB |
| Let Me Properties – St Albans | 1 Hatfield Road, St Albans City Centre, Hertfordshire AL1 3RR |
| Marshall Vizard – Watford | 26 Station Road Watford WD17 1JU |
| Marshalls – Royston | Estates House, 4 Fish Hill Royston SG8 9LD |
| Martin & Co – St Albans | 92 London Road St Albans, Hertfordshire AL1 1NX |
| Mather Marshall – Hatfield | 27 Market Place Hatfield AL10 0LJ |
| Mather Marshall – Hitchin | 41 Hermitage Road Hitchin SG5 1BY |
| Mather Marshall – Knebworth | 132 London Road Knebworth SG3 6EY |
| Mather Marshall – Stevenage | 129 High Street Stevenage SG1 3HS |
| Mullucks Wells – Bishops Stortford | The Guild House Water Lane CM23 2JZ |
| Nash Partnership – Berkhamsted | 125 High Street Berkhamsted HP4 2DJ |
| Nash Partnership – Tring | 23 High Street Tring HP23 5AH |
| Norgans – Hitchin Sales | 8 Brand Street Hitchin SG5 1HX |
| Oakleys – Berkhamsted | 151 High Street Berkhamsted HP4 3HH |
| Oliver Minton – Puckeridge | 28 High Street Puckeridge SG11 1RN |
| Oliver Minton – Stanstead Abbotts | 14 High Street Stanstead Abbotts SG12 8AB |
| Paul Wallace Estate Agents | Brookfield Centre Waltham Cross EN8 0NN |
| Pendley Estates – Bovingdon | 10 High Street Bovingdon HP3 0HG |
| Pendley Estates – Kings Langley | 1 High Street Kings Langley WD4 8AB |
| Pikes Estate Agents | 7 The Arcade Hatfield AL10 0JY |
| Premier Move – Harpenden | 22 Station Road Harpenden AL5 4SE |
| Property File – Stanstead Abbotts | 54 High Street Stanstead Abbotts SG12 8AG |
| Putterills – Harpenden | 42 High Street Harpenden AL5 2SX |
| Putterills – Hitchin | 60 Hermitage Road Hitchin SG5 1DB |
| Putterills – Knebworth | 123 London Road Knebworth SG3 6EX |
| Putterills – Marshalswick | 5 The Quadrant Marshalswick AL4 9RA |
| Putterills – St Albans | 37 Chequer Street St Albans AL1 3YJ |
| Putterills – Stevenage | 61-63 High Street, Old Town Stevenage SG1 3AQ |
| Putterills – Welwyn Garden City | 34 Wigmores North Welwyn Garden City AL8 6PH |
| Putterills – Welwyn Village – Welwyn | 9 High Street Welwyn AL6 9EE |
| Raine and Co – Codicote | 81a High Street Codicote, Hertfordshire SG4 8XE |
| Raine and Co – Hatfield | 11 Market Place Hatfield AL10 0LJ |
| Raine and Co – Stevenage | 33 Market Place Stevenage, Herts SG1 1DH |
| Rennie & Co – Watford | 17 Clarendon Road Watford WD17 1JR |
| Rumball Sedgwick – St Albans | 58 St Peters Street St Albans AL1 3HG |
| Russell Property Partnership – Bishops Stortford | 11 North Street Bishops Stortford CM23 2LD |
| Satchells – Baldock | 8 High Street Baldock SG7 6AR |
| Satchells – Hitchin | 7 Brand Street Hitchin SG5 1HX |
| Satchells – Letchworth | Station Place Letchworth SG6 3AQ |
| Savills – Barnet | 143 High Street Barnet EN5 5UZ |
| Savills – Bishop’s Stortford, Residential Development Sales | Chequers 19 North Street Bishops Stortford CM23 2LD |
| Savills – Bishop’s Stortford | Chequers, 19 North Street Bishop’s Stortford CM23 2LD |
| Savills – Harpenden | 2 Station Road Harpenden AL5 4SD |
| Savills – Northwood | 1 Rowland Place, Green Lane Northwood HA6 1AA |
| Savills – Northwood, Residential Development Sales | 1 Rowland Place, Green Lane Northwood HA6 1AA |
| Savills – Rickmansworth | 11 Church Street Rickmansworth WD3 1BX |
| Sean Heaney | 234 High Street Hadley Green, Barnet EN5 5TD |
| Shepherds – Hertford | Riverside House, 6 Mill Bridge Hertford SG14 1PY |
| Signature Homes | Old Town Hall, High Street, Ware SG12 9AT |
| Slades Estate Agency – Carpenders Park | 9 The Parade Carpenders Park WD19 5BL |
| Steven Oates – Hertford | 70 Fore Street Hertford SG14 1BY |
| Steven Oates – Ware | 21 High Street Ware SG12 9BN |
| Strutt & Parker – Harpenden | 49 High Street Harpenden AL5 2SJ |
| Strutt & Parker – St Albans | 34 St Peters Street St Albans AL1 3NA |
| Thomas Childs & Co – Hertford | Providence Place, Railway Street Hertford SG14 1EH |
| Town & Country – Markyate | 40a High Street Markyate AL3 8PA |
| Town & Country – Redbourn | 69 High Street Redbourn AL3 7LW |
| Warren Anthony – Watford | 12 Market Street Watford WD18 0PD |
| Winkworth – St Albans | 10 High Street St Albans AL3 4EL |
