Support the Capital Campaign Today

With $9M already raised toward our goal of $10M, the finish line is in sight. Be a part of Kellenberg history by helping us successfully close out our first-ever capital campaign!

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It is because we believe we can continue to transform the world through our unique approach to an education of hearts and minds. We do this by providing a world-class education combined with strong moral values grounded in the Marianist philosophy.


For more than 30 years, the priests and brothers of the Society of Mary, along with the lay faculty and administration, have dedicated themselves to implementing a comprehensive liberal arts curriculum at Kellenberg Memorial which is balanced by strict attention to civility, order, and respect. Graduates of Kellenberg Memorial are able to think critically, communicate clearly, and act with integrity. The core Catholic values instilled in our students stay with them as they go on to top tier colleges and universities and become leaders in their chosen professional paths.

Kellenberg Memorial has been evolving since our doors opened in fall of 1987. Some of the more significant changes over the past three decades have included:

  • The addition of bucolic courtyards and beautiful woodwork to transform brick and mortar into an atmosphere that educates
  • Launching the Brother Joseph C. Fox Latin School for sixth, seventh, and eighth graders,
  • The introduction of 1:1 technology where all students and teachers utilize iPads
  • The development of a technology-enabled curriculum
  • The expansion of STEM-related electives and co-curricular activities.

We are committed to constantly evolving to ensure we continue to provide a high-quality, affordable education to prepare the youth of Long Island for successful, happy, faith-filled lives.

Over the past 30+ years, Kellenberg Memorial has sent forth nearly 13,000 Firebirds, transforming the world through hearts and minds nurtured through their Kellenberg experience. Our graduates go on to transform the world by becoming global leaders in finance, law, medicine, technology, education, civil service, and engineering. Many Firebird alumni choose lives of service to others by entering into religious life or becoming members of the armed forces, police departments, and fire departments.

Saint Pope John Paul II once wisely stated, “The future starts today, not tomorrow.”  In order to ensure that countless generations of Firebirds receive an equally innovative Catholic, liberal arts education rooted in the Marianist tradition in the future, the administration of Kellenberg Memorial is taking bold steps today.  A dedicated, dynamic Advisory Board has been established in order to guide and assist the administration as it strategically plans the steps to be taken to shape the vision for the future of the school.

See Before & After of our recent projects.

Tour of Our Jim and Diane Rowen STEM Center

Greater Things are Yet to Come.

Curriculum Enhancements

  • The school’s six existing science labs will be renovated in order to create dedicated, state-of-the-art spaces for students to learn by doing scientific research in a hands-on, collaborative, and integrated environment rooted in inquiry and discovery.
  • Six additional classrooms will be constructed, enabling the renovated science labs to be utilized solely for their designated purpose of scientific instruction.
  • The liberal arts curriculum will expand to include newly added courses in math, science, and engineering, as well as provide additional opportunities for students to earn college credit with local colleges and universities.
  • Investment in faculty will include dedicated lab faculty, enhanced professional development, and additional resources in college placement.

Student Activities

  • A newly constructed, multi-purpose building will be added to the west side of the school building. It will extend onto a currently under-utilized practice area on Saint John Field.
  • The building will house two basketball courts, practice spaces for the Dance Team, Cheerleading, and Blue and Gold, as well as a weight-training area, small bowling alley, two-story rock-climbing wall, and golf simulator.
  • A music center will be constructed on the lower level, giving the band and orchestra rehearsal space with proper soundproofing and acoustic treatment.
  • A new art studio facility will be created above the newly renovated girls’ locker room.
  • The new multi-purpose building will ease the overburdened main school building and provide appropriate homes for many student activities, including homeroom competition days and various apostolic events.

Athletic Facilities

  • The track is resurfaced using a new rubberized, polyurethane material, providing an enhanced experience for athletes, physical education classes, youth sports participants, and community events.
  • The boys’ and girls’ locker rooms are completely renovated.
  • New bleachers are being built overlooking Saint Matthew Field providing increased seating and accessibility in conformity with the Americans with Disability Act.
  • Saint Charles Field will be renovated to include two regulation-sized fields for soccer, football, as well as six tennis courts.
  • New electronic signage will be added on the property alongside Hempstead Turnpike to publicize upcoming events and raise the public profile of the school.

Campus Enhancements

  • New stone entryway will grace the main entrance to campus along Glenn Curtiss Boulevard.
  • Saint Mark Field will be converted to a new parking area, making access to campus safer and more convenient.
  • Additional outdoor lighting and security cameras will be installed throughout campus, ensuring the highest degree of safety for students, parents, and visitors.

Apostolic Facilities

  • Recently acquired retreat house, Stella Maris, in Islip, New York.
  • Once renovated (including converting an existing stable into a new chapel), Stella Maris will provide additional space for all of our retreat programs and give students additional opportunities to focus on faith and discernment.
  • The property provides direct access to Champlin Creek on the Great South Bay.
  • Following the renovation of the existing boat slip and T-dock, the newly established Firebird Crew Club will use Stella Maris for practices.