The Clinical Advisory Group on Sex and Gender (CAN-SG) are UK and Ireland based clinicians calling for greater understanding of the effects of sex and gender in healthcare.

CfW campaign within the public sphere, and in the heart of Westminster, to raise awareness of issues which threaten the safety and dignity of women.

End Violence Against Women Coalition are a group of activists, survivors, researchers, frontline support services and NGOs working to end violence against women and girls in all its forms.

FiLiA is a women-led volunteer organisation and part of the Women’s Liberation Movement. FiLiA runs the largest annual grassroots feminist conference in Europe.

For Women Scotland (FWS) are a group of women from all over Scotland working to protect and strengthen women and children’s rights.

Gay Men's Network are a grassroots organisation which focuses on upholding the rights and freedoms of gay men and fighting homophobia.

Genspect is an international, non-partisan, interdisciplinary organisation committed to promoting a healthy, evidence-based approach to sex and gender.

A campaigning and advocacy group formed by Green Party members defending women's sex-based rights.

Legal Feminist are a collective of lawyers – solicitors and barristers – who are interested in feminist analysis of law, and legal analysis of feminism.

Lesbian Greens are committed to supporting all women who fall under the lesbian umbrella – that is all women who are same-sex attracted.  

LGB Alliance provide information, community and support to LGB people. They campaign on issues that affect same-sex attracted people and highlight and tackle discrimination.

Protecting and advancing the rights of women and girls from within the Liberal Democrats.

A grassroots group of ordinary women from across Wales who are working to protect and strengthen the sex-based rights of women and girls.

MoMa is a mother-led breastfeeding support organisation. They support mothers in the normal course of breastfeeding, from pregnancy to weaning.

Established in 2018, MBM is an independent policy analysis collective, made up of Dr Kath Murray, Dr Lucy Hunter Blackburn and Lisa Mackenzie.

My Body is Me Publishing is a small independent publisher, that creates and recommends books and resources for children and teens that celebrate body positivity and challenge sex stereotypes.

Nia is run for women and children by women, providing services developed in consultation with women who have experienced men’s violence, and from a proudly feminist perspective.

Safe Schools Alliance UK is a grassroots organisation which campaigns to uphold child safeguarding in schools.

SEEN is a staff network within the Civil Service committed to promoting and supporting sex equality and equity in the workplace. It is part of a growing number of SEEN Networks across both public and private sectors.

Sex Matters promote clarity about sex in law, policy and language in order to protect everybody’s rights.

Society for Evidence Based Medicine (SEGM) promote safe, compassionate, ethical and evidence-informed healthcare for children, adolescents, and young adults with gender dysphoria.

Southhall Black Sisters highlight and challenge all forms of violence against women and girls, empowering them to gain control over their lives and assert their human rights to justice, equality and freedom.

Stats for Gender provide reliable and accessible information on gender and transition, supported by Genspect.

Teachers for Evidence-Based Education produce guidance and resources for teaching professionals including “A Teacher’s Guide to Sex and Gender.

The J.K. Rowling fund offers legal funding support to individuals and organisations fighting to retain women’s sex-based rights in the workplace, in public life and in protected female spaces.

Thoughtful Therapists are counsellors, psychotherapists and psychologists fighting to preserve ethical therapy in the face of political imposition of queer theory and gender identity ideology.

Transgender Trend advocate for an evidenced-based social and clinical approach towards children who self-identify as transgender, and science-based teaching in schools.

With Woman are birth workers and activists, focused on pregnancy, birth and breastfeeding concerns of women. Sex-based language is important due to sex-based oppression.

WPUK are a group of women from a range of backgrounds united in the belief that women’s hard-won rights must be defended. (Archived group).

WRN are a network of women from England, Wales, Scotland and Northern Ireland with one main aim: to defend women’s sex-based rights of women.