Hall of
fame

Juan Antonio Ramírez

Coached the U.D. Muñatones under-18s and seniors in the early years. According to the book, he was the first club coach to win an official title.

Miguel Ángel Polo

Came through the school teams and coached the club's first women's senior handball team, in 1977-78.

Fernando Garmendia

With the San Juan Bautista school girls he was under-14 Federation Cup runner-up in 1983-84 and Bizkaia champion in 1984-85, and with the under-16 girls he won the Bizkaia League in 1988-89. He was also club secretary and board member.

Juan Antonio Guerrero

One of the club's first under-18 players. Player, coach of every age group, school coach until 2006, treasurer and board member: according to the book, the person who has helped the club for the most years.

Luis Ángel Muñoz

Came through the school teams and coached the men's seniors for years: under him they were promoted to the First Territorial division in 1989-90 and won their league in 2000-01. As vice-president he helped bring Liga Asobal teams and the Brazil and Argentina national teams to the Town Council Trophy.

In the photo: The men's seniors promoted to the First Territorial division (1989-90).

Joaquín Reinoso

Won the 1977-78 under-18 Cup as a player. He coached the men's seniors from 1991 to 1998 and the under-16 girls who finished league runners-up, two of whom were picked for the Basque Country. With Albino Cieza he took two San Juan Bautista players into the Bizkaia under-14 squad.

Juan Antonio Pérez

Coached the women's seniors in the year Petronor began sponsoring them, the first Petronor Muskiz. He told a board meeting what he had seen in Cantabria and drove Handball Day from 1992 to 1998.

In the photo: The first Petronor C.B. Muskiz women's senior team (1992-93).

Iñaki Cieza

Joined the club in 1987 and is still here, almost forty years later: board member, coach of every age group and Handball Day organiser since 1992. He won several Bizkaia titles with the under-14 girls and has been part of many of the club's promotions. In 2024-25 he took charge of the B senior team just promoted to the First Provincial division, and today he coaches the under-10s.

Albino Cieza

Coach of the men's under-18s in 1988, team manager, board member and, above all, the one who looked after the school teams. A driving force behind Handball Day.

Sergio Arce

Coaching from 1988 at San Juan Bautista school. He was the club's sports coordinator, took the women's seniors up in the Basque league, and in 2003-04 his under-18 boys won their league and were Bizkaia runners-up. Before that he had coached at Trapagaran and Kukullaga in the First National division. He left the club in 2004, came back in 2016 and stayed until 2023.

Igor Merino y Pedro Merino

Head coach and assistant of the men's seniors for the promotion from the Second to the First Provincial division (2013-14) and the first promotion to the Basque League (2015-16).

In the photo: The men's seniors promoted to the First Provincial division (2013-14).

Aitor Inchaurrandieta

Coach of the women's senior team that on 17 May 2015, in Muskiz, won the final phase of the Spanish First Division championship and was promoted to División de Honor Plata, the highest any club team has reached. Today he coaches Sestao's men's senior team.

Aitor Aldudo y Óscar Aldudo

The Aldudo brothers coached several of the club's women's teams and were a big help in the great growth of the women's section. Today they coach at Kukullaga.

Edorta Mansilla Iglesias

Played for the men's seniors in 2001-02. As coach of the men's seniors, in 2017-18 he won the Bizkaia championship and the second promotion to the Basque League, where the team has stayed ever since. He also coached in the youth teams and did a great deal to grow handball at the Muskiz ikastola. He passed away in the 2023 pre-season, as he was returning to the Basque League senior bench as assistant coach alongside his friend Sergio Arce.

Endika Cieza

Has coached club teams for twenty years. Before David Vegas arrived he ran Senior Euskadi: under him came the club's best-ever Basque League finish and its first Bizkaia Cup, in 2024-25. Today he coordinates the school teams and coaches the Senior Women.

David Vegas

Director of sport from under-16 to senior and coach of Senior Euskadi. In his first season, 2025-26, he took the team into the promotion play-off for the First National division for the first time in the club's history (Basque Final 4, Legazpi, May 2026).