Services for H
- The Haemophilia Society
- Hamilton School (out of borough school)
- Harlington School (out of borough school)
- Harrow College (out of borough)
- Haybrook College & PRU
- Hayes Park School (out of borough school)
- Hayley Kennedy - Childminder
- Health at Home - Slough Public Health
- Health Visitor Baby Clinic - Chalvey Grove Children's Centre
- Health Visitor Baby Clinic - Elliman Avenue Children's Centre
- Health Visitor Baby Clinic - Penn Road Children's Centre
- Health Visitor Baby Clinic - Romsey Close Children's Centre
- Health Visitor Baby Clinic - St. Andrew's Way Children's Centre
- Health Visitor Baby Clinic - Vicarage Way Children's Centre
- Health Visitor Baby Clinic - Yew Tree Road Children’s Centre
- Health Visitor Baby Clinics - Frimley Healthcare
- Health Visitor Baby Clinics - Venues in Slough
- Healthwatch Slough
- Healthy Start Vitamins - Slough Children's Centres
- Hearing and Balance
- Heathermount School (out of borough school)
- Helping Hands Home Care Windsor & Maidenhead
- Helping you to reduce your energy costs - Community Council for Berkshire
- Helpline for carers
- Henley College
- Henley Nannies
- Heritage Healthcare
- Heritage House School (out of borough school)
- Herschel Grammar School
- Herschel Park Walks and Events
- Hestia - Freedom Programme
- Hestia - IDVA Support
- Hestia - support for victims of modern slavery
- The Hideout
- High Close School (out of borough school)
- Highworth Combined School (out of borough school)
- Hillingdon Autistic Care & Support (HACS)
- Hillingdon Manor School (out of borough school)
- HITZ
- Hodan Egeh- Childminder
- Holding Hands - SEBDOS
- Holidays - Dreamflight
- Holidays - Make-a-Wish Foundation UK
- Holmer Green Senior School (out of borough school)
- Holtspur School & Pre-School (out of borough school)
- Holy Family Catholic Primary School
- Home education - Slough Borough Council
- Home Education Advisory Service (HEAS)
- Home from Home - Short Break Scheme
- Home Library Service with Slough Libraries
- Home Safety Check - Slough Children's Centres
- Home to school transport
- Home-Start Family Support Service
- hometouch
- Horticultural Therapy
- Hospital Discharge Home Care
- Hourglass
- House The Homeless - Homeless Shelter & Charity in West Norwood, London
- Hypnotherapy Directory