Ruamrudee International School

Amnesty International

Butterfly Effect

Eco-Merits

Habitat for Humanity

History Bee & Bowl

Leo Club

Model United Nations (MUN)

Muse Art and Music Club

National Honor Society (NHS)

Operation Smile

Red Cross

Student Council

Soi Dog

Tech Club

Cooking Committee (Dissolved)

RIS features two main libraries, Elizabeth and Griffith. The two libraries contain more than 100,000 print, electronic, and audiovisual materials. Each library is supported by a knowledgeable, certified librarian and staff along with quiet study locations for students.

The Elizabeth library caters to PreK–grade 5 students with books and resources on topics ranging from general interest to contemporary popular fiction. ES students are encouraged to search for engaging books at just the right reading level to support their literacy development. The library provides many kid-friendly genres and titles crucial to their development. Middle school and high school students, however, prefer to use the Griffith library as it provides greater space for working and a greater variety of books.

The Griffith Library serves grade 6–12 students, with well over 50,000 books, 70 periodicals, and multiple online resources that span an enormous range of fiction, nonfiction, and reference materials.

Currently, the Griffith library is undergoing renovation with an expected completion date of January 2020. A temporary location for the library has been established in an existing 'book room' near the tennis court. The library features two floors with the second also being used for the class, Academic Research, instructed by librarian, Mr. Garrett Drake. The library also provides the students with board games.

RIS offers free gym access to students and faculties. The gym is equipped with multiple cardio machines including treadmills, cycling machine, step machine, etc. Furthermore, multiple sets of weights and weight machines for upper body and lower body exercise are available. Students who seek to use the gym must be dresses in gym-appropriate clothing. A water dispenser is available within the gym, however, the gym does not provide cups. Students and faculties are expected to provide themselves with water containers. Although water fountains are located throughout the campus. The closest one is located outside the building itself.

The 300-seat, tiered Performing Arts Center (PAC) is where students present their band, choir, drama, and musical productions. The PAC is an space for showcasing student and faculty talent shows, the annual Easter and Christmas performances, and the TEDxYouth talks. The theater features a proscenium stage with mirrored practice rooms and two dressing rooms. The PAC has been used for the school's adaptation of musicals such as Bye Bye Birdie, Legally Blonde, and Once on This Island. Seasonal choirs showings are hosted throughout the year. Band performances are hosted throughout the year to present the progression band classes in school.

The Nest, previously known as the CPD room, is a conference room located above the high school portion of the canteen. Access to the room are located at the stair located in the canteen or through the second floor bridge on the second floor of the high school building. The octagonal room features rhombus-shaped tables that can be combined to create a hexagonal table. The Nest is often used for conferences and retreats for events such as Student Council or National Honors Society.

The middle school workshop or the maker space is a place for students to explore themselves with new technology and workshop equipment. Students who seek to explore the field of STEM can take advantage of equipments such as 3d printers and wide screen TVs. Those who seek to engage in hands-on activities may enjoy exploring the workshop portion of the space. Equipments such as saws, hammer, nails, wooden planks, and other.

Prior to the school year of 2017 - 2018, the maker space did not contain equipments of the same sort. Previously, the maker space provided students with games and gadgets such as connect four, jenga, knex, and perler beads. Although a 3d printer was available for use in the beginning, the machine had restricted usage.

RIS boasts two pools: Phoenix pool measures 25m x 50m—officially Olympic size and concurrent with FINA standards; Godbout pool, a 25m pool, has an automatic salt-chlorination filter system. The Phoenix pool went through upgrades such as PVC lining, starter blocks for both short- and long-course events, a synthetic rubber pool deck, a scoreboard, a timing system with highly sensitive touchpads, and sails extending across the entire pool.

The Mini-Theater, located on the 6th floor of Redeemer building, is a small movie theater used for showing of movies or videos. The theater capacity of 20 people limits it for in-class use rather than school-wide use.