
Yolo Akili, also known as Yolo Akili Robinson, is an activist, writer, poet, counselor, and community organizer who advocates for addressing mental and emotional health needs in the Black community. He is the author of Dear Universe: Letters of Affirmation and Empowerment, and the founder and executive director of BEAM.

Buck Angel is an American pornographic film actor and producer, sex educator, and a motivational speaker.

Bettina Mary Arndt is an Australian writer and commentator who specialises in sex and gender issues. Starting as a sex therapist and feminist, she came to public prominence in the 1970s, establishing a career in publishing and broadcasting as well as writing several books. In the last two decades she has abandoned feminism and attracted controversy with her social commentary and her views on sexual abuse, domestic violence and men's rights advocacy.

Elizabeth Blackwell was a British physician, notable as the first woman to receive a medical degree in the United States, and the first woman on the Medical Register of the General Medical Council. Blackwell played an important role in both the United States and the United Kingdom as a social awareness and moral reformer, and pioneered in promoting education for women in medicine. Her contributions remain celebrated with the Elizabeth Blackwell Medal, awarded annually to a woman who has made significant contribution to the promotion of women in medicine.

Lucinda "Cindy" Lee Gallop is an English advertising consultant, founder and former chair of the US branch of advertising firm Bartle Bogle Hegarty, and founder of the IfWeRanTheWorld and MakeLoveNotPorn companies. According to the TED blog, Gallop's TEDTalk "Make Love Not Porn" was one of the "most talked about presentations" at the 2009 TED conference. She lives in New York City.

Karl Giese was a German archivist, museum curator, and the life partner of Magnus Hirschfeld.

Wendy Elsa Greengross was a British general practitioner and broadcaster. The Independent called her "a pioneering counsellor and one of the leading figures in fighting for equal rights for the disabled and the elderly".

Twanna Angela Hines is an American writer, internet personality, and sex educator who also discusses human sexuality and relationships on her website Funky Brown Chick. She appears on television, film, and radio programs including Spark, Maximum Radio, and NPR. She was a sex columnist for Nerve, and is currently a syndicated sex columnist for Metro International.

Magnus Hirschfeld was a German physician and sexologist educated primarily in Germany; he based his practice in Berlin-Charlottenburg during the Weimar period. An outspoken advocate for sexual minorities, Hirschfeld founded the Scientific-Humanitarian Committee. Historian Dustin Goltz characterized this group as having carried out "the first advocacy for homosexual and transgender rights". "Hirschfeld's radical ideas changed the way Germans thought about sexuality." Hirschfeld was targeted by Nazis for being Jewish and gay, he was beaten up by völkisch activists in 1920, and in 1933 his Institut für Sexualwissenschaft was sacked and had its books burned by Nazis, forcing him into exile.

Josephine Chuen-juei Ho, is the chair of the English department of National Central University, Taiwan, and coordinator of its Center For the Study of Sexualities.
Max Julius Carl Alexander Hodann was a German physician, eugenicist, sex educator and socialist, "the best-known and most controversial medical sex educationalist in the Weimar Republic". He wrote for a working-class readership and for children. After 1933, as a refugee from Nazi Germany, he lived predominantly in Norway and Sweden.

Alfred Charles Kinsey was an American biologist, professor of entomology and zoology, and sexologist who, in 1947, founded the Institute for Sex Research at Indiana University, previously known as the Kinsey Institute for Research in Sex, Gender, and Reproduction. He is best known for writing Sexual Behavior in the Human Male (1948) and Sexual Behavior in the Human Female (1953), also known as the Kinsey Reports, as well as the Kinsey scale. Kinsey's research on human sexuality, foundational to the field of sexology, provoked controversy in the 1940s and 1950s. His work has influenced social and cultural values in the United States as well as internationally.

Douglas Bernard Kirby, Ph.D. was senior research scientist for ETR Associates in Scotts Valley, California, and one of the world’s leading experts on the effectiveness of school and community programs in the reduction of adolescent sexual risk-taking behaviors. In recent years he had also undertaken research and analysis on the impact of HIV/AIDS prevention programs in Uganda under the auspices of the World Health Organization, USAID, and other organizations.

Cyril George Carstensen Lutterodt, popularly known as Counselor Lutterodt, is a controversial Ghanaian marriage counselor who has spoken about various issues in the country and has received backlash for some of his comments.

Fania Esiah Mindell was an American feminist, activist, and theater artist.

Stephanie Mitelman Bercovitch is a sex education and family life education professor, public speaker, entrepreneur, sex educator, and author specializing in special education, particularly for youth with autism spectrum disorders. She is the owner and creator of Senseez Pillows, a company making vibrating pillows for people with sensory needs, and Sex Ed Mart, a sex education publishing and distribution company specializing in sex education for youth with special needs. Bercovitch also runs a private sex education practice for youth on the autism spectrum, their parents, and couples who are neurologically diverse.

Katti Anker Møller was a Norwegian feminist, children's rights advocate, and a pioneer of reproductive rights.

Emily Hope Morse is an American sex therapist, author, and media personality. She is the host of the long-running podcast, Sex with Emily and is also known for her 2012 recurring reality television appearance in Bravo's series Miss Advised (2012).

Muzi Mei is a journalist and blogger from Guangzhou, China, who became an Internet celebrity in late 2003. Her blog contained frank descriptions of her sexual encounters with various men, which is believed to be a first for China.

Humphrey Nabimanya is a television presenter, founder and team leader at Reach A Hand, Uganda.

Elise Ottesen-Jensen, also known as Ottar, was a Norwegian-Swedish sex educator, journalist and anarchist agitator, whose main mission was to fight for women's rights to understand and control their own body and sexuality. She was a member of the Swedish anarcho-syndicalist union Central Organisation of the Workers of Sweden. Her followers consider her a pioneer in the field of women's rights and feminism.

Ovidie is a French former porn actress, director, actress, producer, journalist and writer. First known as a porn actress from 1999 to 2003, she has since directed pornographic films as well as documentaries and has written several books.

Rosalind Mary Owens, known as Tuppy Owens, is an English sex therapist, consultant, campaigner, writer and former adult model.

Damon Pierce, creator and owner of slavetobondage.com, is a world renowned bondage rigger, BDSM educator, professional piercer, adult entertainment producer and director from Los Angeles, California. He is known for his skill with well known companies such as Penthouse, Hustler, INSEX/Intersec, KINK, Hustler's Taboo, Andrew Blake, PlayboyTV, Adam and Eve, Bonview, and Bizarre Video. Damon Pierce has worked with well known photographers like Ed Fox, Steve Diet Goedde, Eric Minh Swenson, Dave Naz and Ken Marcus.
Wilhelm Reich was an Austrian doctor of medicine and psychoanalyst, a member of the second generation of analysts after Sigmund Freud. The author of several influential books, most notably Character Analysis (1933), The Mass Psychology of Fascism (1933), and The Sexual Revolution (1936), Reich became known as one of the most radical figures in the history of psychiatry.

Hildegart Rodríguez Carballeira was an activist for socialism and sexual revolution, born and raised by her mother as a model for the woman of the future. She spoke 6 languages when eight years old, finished law school as a teenager, and was a leader of the Spanish Socialist Workers' Party which she abandoned in favour of extreme republicanism. By the time she was 17 years old and had become internationally known, her mother shot her to death.

Ettie Annie Rout was a Tasmanian-born New Zealander whose work among servicemen in Paris and the Somme during World War I made her a war hero among the French, yet through the same events she became persona non grata in New Zealand. She married Frederick Hornibrook on 3 May 1920, after which she was Ettie Hornibrook. They had no children and later separated. She died in 1936, and was buried in the Cook Islands.

Margaret Higgins Sanger was an American birth control activist, sex educator, writer, and nurse. Sanger popularized the term "birth control", opened the first birth control clinic in the United States, and established organizations that evolved into the Planned Parenthood Federation of America.

Cory Silverberg is a Canadian sex educator, author, public speaker, blogger and founding member of Come As You Are.

Louise Southgate was one of the first women physicians in Northern Kentucky where she advocated for girls in the juvenile court system and was an early proponent of birth control. Besides her medical practice and outreach, she led many efforts for the American women's suffrage movement through her local clubs and the Kentucky Equal Rights Association.

Annie M. Sprinkle is an American certified sexologist, sex educator, former sex worker, feminist stripper, pornographic actress, cable television host, porn magazine editor, writer, sex film producer, and sex-positive feminist. She received a BFA in photography from the School of Visual Arts in 1986 and, in 1992, she earned a doctorate (Ph.D.) in Human Sexuality from the Institute for Advanced Study of Human Sexuality in San Francisco. Currently, Sprinkle works as a performance artist, visual artist, filmmaker, author, and sex educator. Sprinkle, who describes herself as ecosexual married her long-time partner, Beth Stephens, in Canada on January 14, 2007.

Sylvanus Stall was a United States Lutheran pastor, most famous for his 1897 sex education and anti-masturbation book What A Young Boy Ought To Know and its many sequels.

William J. Taverner, MA, commonly known as Bill Taverner, is the editor of the American Journal of Sexuality Education and the executive director of the Center for Sex Education (CSE). He has co-authored numerous sexuality education manuals, including All Together Now: Teaching about Contraception and Safer Sex, Making Sense of Abstinence: Lessons for Comprehensive Sex Education, Positive Images: Teaching Abstinence, Contraception, and Sexual Health, Streetwise to Sex-Wise: Sexuality Education for High-Risk Youth, and Older, Wiser, Sexually Smarter.

Beate Uhse-Rotermund was a German pilot, entrepreneur and sex pioneer. She was one of the very few female stunt pilots in Germany in the 1930s, during World War II she ferried planes for the German Luftwaffe and after World War II she started the first sex shop in the world. The company she started, Beate Uhse AG, is listed on the Frankfurt Stock Exchange.

Mabel Simis Ulrich was an American medical doctor and health educator, lecturing nationally on sex and hygiene for the YWCA. She also wrote, owned several bookstores, and ran the Minnesota Writers' Project during the 1930s.

Mabel Antoinette Sine Wadsworth was an American birth control activist and women's health educator. Influenced by the work of Margaret Sanger, she organized door to door campaigns in rural Maine in the 1950s and 1960s to teach women about birth control. In the 1960s she established and directed the state's first family planning program which provided contraceptive services, and helped found the Maine Family Planning Association in 1971, serving as its first president. In 1984 she supported the establishment and naming of the Mabel Wadsworth Women's Health Center in Bangor, Maine, a private, non-profit, feminist health center. Wadsworth was in the first class of inductees to the Maine Women's Hall of Fame in March 1990.

Mollena Williams-Haas, formerly Mollena Williams, is an American writer, BDSM educator, actor, and former International Ms. Leather (2010). She is married to the composer Georg Friedrich Haas, who is the dominant partner in a BDSM relationship with her.

Jay Joseph Wiseman is an American BDSM author, educator, and expert legal witness. His most famous work is the book SM 101: A Realistic Introduction, which has somewhere in the area of 100,000 copies in print. It is also one of the Society of Janus' "Suggested Readings" regarding BDSM.

Hannah Lisa Witton is an English YouTuber, broadcaster, and author. Witton creates video blogs and informational content which is mostly based around relationships, sex and sexual health; liberation and welfare issues; literature; and travel.

Mary Augusta Wood-Allen was an American doctor, social reformer, lecturer, and writer of books on health and self-improvement for women and children. Through her lectures and writings she was a voice for the social purity movement.

Victoria Nika Zdrok is a Ukrainian-American pornographic actress, author, and model. She is Playboy's Playmate for October 1994. In June 2002 she became Penthouse magazine's Pet of the Month, later being chosen as their 2004 Penthouse Pet of the Year. Zdrok is also a non-practicing attorney, a clinical psychologist and sex therapist.