• In 1993, Haplos was founded as a patient group by 17 hemophilia families and some hematologists.
• In 1994, Haplos was registered with the SEC as a Non-Profit Organization.
• Until 2003, the governance of Haplos had been a joint undertaking of parents and the doctors. Today, the doctors are concentrating on improving hemophilia care and give support to Haplos through the Philippine Hemophilia Foundation.
• By 2004, Haplos governance was done through the Board of Trustees who handles the foundation's programs and activities.
• In 2008, The President of the Philippines issued Presidential Proclamation 1478 declaring April as National Hemophilia Month, and April 17 as Hemophilia Day.
• In 2009, Haplos was the lead convenor in the first Hemophilia Summit with the theme: "Hemophilia Care vis--vis the National Voluntary Blood Program".

Participants of this Summit were the Department of Health, Philippine Red Cross, Philippine Blood Coordinating Council, Philippine Society for Hematology and Blood Transfusion (PSHBT), PHF and HAPLOS. A consensus was arrived at for the advancement of Hemophilia Care through cooperative undertakings by the different stakeholders.