| E-TEC Power Management UK | Automation company | Unit 4, Godbolts Business Park | Mon–Fri 09:00–17:00 |
| EAP Property Services Group | Structural engineer | 79 Gosbecks Rd | Mon 09:00–17:00 |
| Earls Colne Recreation Club | Sports complex | GREEN Farm Meadow, Halstead Rd | Mon–Fri 09:00–22:00 |
| East of England | Petrol station | Samson's Rd | Mon–Sat 06:30–21:00 |
| Eateasy Ltd | E-commerce service | 69 Godmans Ln | Daily Open 24 hours |
| Ecolnes Refillery | Shop | 75 High St | Tue–Fri 08:30–16:30 |
| Edgardo's Elite | Boxing gym | 20 Telford Way | Mon–Thu 12:00–21:00 |
| EEABS - Elmstead Energy Assessments & Building Services | Environmental consultant | Suite 3 Aster House, Lanswoodpark | Mon–Fri 08:00–16:30 |
| Electrogear Ltd | Electrical products wholesaler | 14 Davey Cl | Mon–Thu 08:00–12:30, 13:00–17:00 |
| Emperor Oven, Carpet & Exterior Cleaning Services Limited | Carpet cleaning service | 15 Lexden Pl, Halstead Rd | Mon–Fri 09:00–18:00 |
| Enhance Me Training Academy - Skin & Aesthetics Courses | Cosmetics industry | Suite 14, Blackwell House, Coggeshall Rd | Wed 09:00–17:00 |
| Envirosigns Ltd | Sign shop | Unit B1, The Seedbed Centre, Severalls Industrial Park, Wyncolls Rd | Fri 08:30–17:30 |
| Ernest Doe | Farm equipment supplier | 6 Haven Rd | Mon–Fri 08:00–17:30 |
| Escape Colchester | Escape room centre | 26 Long Wyre St | Mon–Sat 10:00–22:00 |
| Esign Media | Graphic designer | 19 Morses Ln | Mon 09:00–17:00 |
| Essex & Suffolk Limousine Hire | Limousine service | The Old Bt Repeater Station, Park Ln | Daily 09:00–17:00 |
| Essex and Suffolk Boat Repairs | Boat maintenance | C/o Brightlingsea boat park and ride Unit 4 Shipyard industrial estate | Mon–Fri 08:00–17:00 |
| Essex Chambers of Commerce | Chamber of commerce | Suite F1, The Innovation Centre, Knowledge Gateway, Boundary Rd | Mon–Fri 09:00–17:00 |
| Essex Cosmedics | Make-up artist | 20 Priors Way | Mon–Fri 08:30–17:00 |
| Essex county Angling | Hunting and fishing shop | 73a London Rd | Mon–Sat 08:00–18:00 |
| Essex GRP | Fibreglass supplier | Colne Rd | Mon–Fri 08:00–16:30 |
| Essex Marine Training | Training centre | Essex Marine Training, Shipyard Est | Daily 09:00–17:00 |
| Essex Wildlife Trust Abberton Reservoir Nature Discovery Park | Visitor centre | Rows Farm, Church Rd | Daily 10:00–16:00 |
| Essex Wildlife Trust Fingringhoe Wick Nature Discovery Park | Nature reserve | South Green Road, Fingringhoe | Daily 10:00–16:00 |
| Evergreen Counselling Service | Marriage counsellor | 90-90 Butt Rd | Mon–Fri 09:30–20:00 |
| Everlast Gyms | Gym | Clarendon Way | Mon–Thu 06:00–22:00 |
| Ex Why Zed | Book publisher | 37 Queen St | Mon–Fri 09:00–17:00 |
| Exeter Drive - Anchor | Housing association | Exeter Dr | Daily Open 24 hours |
| Express Appliances | Appliance rental service | Martells Barn, Slough Ln | Mon–Fri 09:00–16:00 |
| F V Conservatories & Windows | Double glazing installer | Colchester Rd | Mon–Tue 09:00–17:00 |