|1971||Encounters her first esthetic shock : a present bag from a former pilot of airmail flight company who made it with leather bindings as their mementos.|
Graduates from Studio Berçot alongside Isabel Marant, Véronique Leroy and Antoine Platteau.
|1987||Helene and her partner found the brand “31 Février” which quickly stands out by reintroducing the concept of sac-objet within the very traditional leather goods industry. Every collection tells a story. The brand enjoys a broad international distribution. Some of the models are part of the collection of the Museum des Arts Décoratifs in Paris.|
|1988||First of several collaborations with Karl Lagerfeld, designing bags for his Spring-Summer pret a porter fashion show.|
|1989||Starts designing bags for Thierry Mugler on his Africa themed pret a porter fashion show at the Museum des Arts Africains et Oceaniens in Paris.|
|1990||Recipient of the ANDAM Fashion Award in Paris, 31 Février is the first accessories brand to receive the prize.|
Collaboration with Paco Rabanne for his accessories.
New collaboration with Karl Lagerfeld for Chloé.
|1993||Opening of a 31 Février store in Paris.|
|1994||Licensing contract signed for the distribution in Japan of a unisex leather goods line named Moitié-Moitié(e)|
Launch of a shoe line in collaboration with Charles Jourdan. Double page spread in the American Vogue.
|1999||In charge of leather goods design with Michael Kors at Céline.|
|2004||Starts her namesake brand Hélène Nepomiatzi whose first models are presented at the Maria Luisa store, rue Cambon, then at Le Bon Marché Department store.|
|2008||Ron Arad « No Discipline »: collaboration to design the bags shown at the exhibition devoted to Ron Arad at the Centre Pompidou (2008) and at MoMA (2009).|
|2009||Creates a trolley line for the brand Caddie in co-branding.|
|2012||Creates a Silver Book for the opening event of the Christofle flagship store in New-York.|
|2013||Lecturer at the Institut Francais de la Mode in the Department Création Majeure Accessoires.|
Creates a line of objects for Hermès « petit h »
|2016||Presentation of the first object « le bureau mural » in the Hermès store, rue de Sèvres in Paris.|
|2017||Installation of « L’épouvantail de salon » in the Hermès store, rue du Faubourg Saint Honoré, Paris.|