Claudia de Breij joined NPO Radio 1 in 2020, where she continues to host a variety of programs. Her work on NPO Radio 1 has been characterized by insightful interviews and a deep commitment to covering important social issues, cementing her status as a respected journalist.

In 2019, Claudia de Breij published 'Amalia', a book about the Dutch crown princess. The book offers a unique insight into the life of the young royal and was well-received for its respectful and engaging portrayal, further showcasing de Breij's versatility as an author.

Claudia de Breij became the first woman to perform the prestigious Oudejaarsconference in 2016. This New Year's Eve cabaret show is a significant cultural event in the Netherlands, and her performance was praised for its humor and sharp social commentary.

In 2015, Claudia de Breij joined NPO Radio 2, where she hosted a popular radio show. Her engaging style and ability to tackle diverse topics made her a favorite among listeners, further solidifying her reputation as a leading voice in Dutch radio broadcasting.

Claudia de Breij was awarded the Annie M.G. Schmidt Prize in 2012 for her song 'Mag Ik Dan Bij Jou'. This prestigious award is given annually to the best theater song in the Netherlands, highlighting her talent not only as a journalist and presenter but also as a songwriter.

In 2010, Claudia de Breij published her first book 'Krijg nou tieten', which became a bestseller in the Netherlands. The book, a humorous and candid exploration of womanhood and personal growth, showcased her ability to connect with a wide audience through her writing.

Claudia de Breij began her career in television by joining VARA, where she hosted her own show 'Claudia d'r op'. The program was well-received for its blend of humor and insightful commentary, establishing her as a versatile media personality in the Dutch entertainment landscape.