The Assisted Reproduction and Gynaecology Centre

Specialism: created Britain's only "saviour sibling" twins. Profile of patients is mid-thirties to early forties.

The expert: Mohamed Taranissi has the second highest success rate in the country.

Success rate: above national average for women under 40.

Under-35: 52.1% 35-37: 44%, 38-39: 33.3% 40-42: 21.8%

Cost: £2,500 including procedures such as ultrasound.

Contact: 13 Upper Wimpole Street, W1 (020 7486 1230, www.argc.co.uk).

The Lister Fertility Clinic

Specialism: successful egg donation programme. Reputation for treating older couples in their forties.

The expert: Sam Abdulla, who helped model Normandie Keith get pregnant.

Success rate: above/consistent with national average for women under 40.

Under-35: 44.5% 35-37: 35.2% 38-39: 25.8% 40-42: 18.8%

Cost: £3,210.

Contact: Chelsea Bridge Road, SW1 (020 7881 4087, www.ivf.org.uk).

London Women's Clinic

Specialism: trialling new embryo screening technique which could treble chance of pregnancy. The clinic is popular with same-sex couples.

The expert: Kamal Ahuja, who pioneered egg sharing in the early 1990s.

Success rate: consistent with national average for women under 40.

Under-35: 40.8% 35-37: 30.9% 38-39- 24.1% 40-42: 11.4%

Cost: £2,950.

Contact: 113-115 Harley Street, W1 (020 7487 5050, www.lwclinic.co.uk).

The Bridge Centre

Specialism: embryo screening. Offers a test that can screen for any one of 15,000 genetic conditions.

The expert: scientific director Alan Thornhill is one of the UK's leading specialists in preimplantation genetics and clinical embryology.

Success rate: consistent with national average for women under 40.

Under-35: 34.6% 35-37: 31.6% 38-39: 22.3% 40-42: 12.8%

Cost: £3,150.

Contact: 1 St Thomas Street, SE1 (020 7403 3363, www.thebridgecentre.co.uk).

Centre for Reproductive and Genetic Health at UCH

Specialism: screening for breast, ovarian and prostate cancer.

The expert: Paul Serhal helped create the world's first "cancer-free" baby.

Success rate: above average/consistent with national average for women under 40.

Under 35: 56.8% 35-37: 48.1% 38-39: 23.1% 40-42: 24%

Cost: £3,000.

Contact: 256 Grays Inn Road, WC1 (020 7837 2905, www.crgh.co.uk).

London Fertility Centre

Specialism: first clinic in Britain to produce IVF twins. Has helped women over 50 get pregnant.

The expert: Magdy Assad offers vitrification, a new method of freezing eggs.

Success rate: consistent with national average for women under 40.

Under-35: 30.5% 35-37: 27.1% 38-39: 16.4%, 40-42: 10.5%

Cost: £2,950.

Contact: 53 Portland Place, W1 (020 7224 0707, www.lfc.org.uk).

Assisted Conception Unit at Guy's and St Thomas' NHS

Specialism: runs the largest screening programme in the UK for couples with inherited conditions.

The expert: Yacoub Khalaf treats women suffering recurrent miscarriage as well as male infertility.

Success rates: consistent with national average for women under 40.

Under-35: 29.9% 35-37: 23.5% 38-39: 13.5% 40-42: 14%

Costs: £2,600.

Contact: 4th Floor, Southwark Wing, Guy's Hospital, SE1 (020 7188 2300, www.guysandstthomas.nhs.uk).

Chelsea & Westminster Hospital assisted
conception unit

Specialism: treatments include ICSI where sperm is injected directly into the egg.

The expert: Julian Norman-Taylor, who worked with fertility pioneer Professor Robert Winston.

Success rate: consistent with national average for women under 40.

Under-35: 24.2% 35-37: 12.2% 38-39: 9.3% 40-42: 4.2%

Cost: £2,950.

Contact: 369 Fulham Road, SW10 (020 8746 8585, www.chelwest.nhs.uk).

Bourn Hall Clinic

Specialism: Its founders Patrick Steptoe and Robert Edwards created the first IVF baby, Louise Brown.

The expert: Peter Brinsden, an inspector for watchdog the Human Fertilisation and Embryology Authority.

Success rate: consistent with national average for women under 40.

Under-35: 32.9% 35-37: 30.6% 38-39: 17% 40-42: 9.4%

Cost: £2,950.

Contact: Bourn, Cambridge (01954 719111, www.bourn-hall-clinic.co.uk).

Barts and the London Centre for Reproductive Medicine

Specialism: runs donor sperm bank for single women.

The expert: Dr Amanda Tozer, who backs the extension of free IVF to women aged over 39.

Success rate: consistent with national average. Under-35: 28% 35-37: 26.9% 38-39: 14.4% 40-42: 9.5%

Cost: £2,900.

Contact: 2nd Floor, Kenton and Lucas Wing, Little Britain, EC1 (020 7601 7176, www.bartsandthelondon.nhs.uk).

Assisted Conception Unit at King's College

Specialism: sperm washing for HIV-positive men.

The expert: John Parsons, whose interests include premature menopause and polycystic ovary syndrome.

Success rate: consistent/below average for women under 40.

Under-35: 25.2% 35-37: 15.7% 38-39: 14.6% 40-42: 8%

Cost: on application.

Contact: 1st Floor, Mapother House, King's College Hospital, SE5 (020 3299 5390, www.kch.nhs.uk/fertility).

CRM London

Specialism: shortest waiting list in the UK for egg donation.

The expert: Robert Forman has 25 years experience in IVF.

Success rate: above/consistent with national average.

Under-35: 43% 35-37: 47.7% 38-39: 28.3% 40-42: 15%

Cost: £2,750.

Contact: 111 Park Road NW8 (020 7616 6767, www.ivfcliniclondon.com).

IVF Hammersmith

Specialism: free fertility counselling.

The expert: Geoffrey Trew helped Jools Oliver conceive.

Success rate: consistent with national average for women under 40.

Under-35: 31.4%, 35-37: 23.7% 38-39: 15.3% 40-42: 9.3%

Cost: £2,950.

Contact: Hammersmith Hospital, Du Cane Road, W12 (020 3313 4411, www.ivfhammersmith.com).

Oxford Fertility Unit

Specialism: IVF using donor sperm and eggs

The expert: Dagan Wells, who is trialling a new method of embryo screening that could treble the chance of pregnancy.

Success rate: above/consistent with national average for women under 40

Under-35: 42.4% 35-37: 31.6%, 38-39: 20%, 40-42: 16.6%

Cost: £2,800.

Contact: Institute of Reproductive Sciences, Oxford Business Park North, OX4 2HW (01865 782800, www.oxfordfertilityunit.com).

Source: HFEA