IGCSE High Achievers
| Chua Shaun | 9A |
| Aderyn Too Yong Xin | 8A |
| Tye Yu Qing | 8A |
| Ng Jien Fong | 8A |
| Rubennishwaraan a/l Karuppiah | 7A |
| Bong Cason | 6A |
| Wan Muhamad Dany bin Wah Muhamad Radzi | 6A |
| Malaekah Sahak | 6A |
| Justason Low Shu Liin | 5A |
| Yau Pei Hong | 5A |
| Shalini a/p Mathiayalagan | 5A |
| Annette Diane Peterson | 9As |
| Chiw Rui Yeong | 7As |
| Shuatee Veloo | 7As |
| Yuven Veloo | 7As |
| Thiruvarasu Sreetharan | 7As |
| Jessamine Yew Hui Min | 7As |
| Joyce Liu Mei Xi | 7As |
| Chong Yew Fei | 7As |
| Jamie Arielle Ong | 7As |
| Rifa Shameer Karukkalparambil | 7As |
| Shavonne Lam Xiangyue | 7As |
| Tye Yi Feng | 7As |
| Herman Tay | 7As |
| Nicholas Hoo Jun Xuan | 6As |
| C.S. Sharan Prasad | 6As |
| Yau Pei Jing | 6As |
| Taneshen Mahindran | 5As |
| Cheah Jia Xin | 5As |
| Soneeyah Gandi | 5As |
| Wan Muhamad Haiqal Bin Wan Muhamad Radzi | 9As |
| Ashwienaa Parameswaran | 8As |
| Ng Po Yaw | 8As |
| Cheah Lee JiA | 7As |
| Zubaria Khong Jicheng | 7As |
| Toh Xin Rou | 7As |
| Lau Yun Ying Anthea | 7As |
| Shree Ashwin Justin Vishnu Bhavan Nelson | 7As |
| Tee Yi Xin | 6As |
| Adelia Ann Nunis | 6As |
| Aleya Najwa Binti Ruslan Iskandar | 6As |
| Vinesh Logeswaran | 6As |
| Lau Jun Hong | 6As |
| Lim Wen Leon | 5As |
| Divhya Ashley Kesavan Gopinath Leonard | 5As |
| Divyaa Ragunathan | 5As |
| Dylan Eu Jiun Kai | 9As |
| Belle Lee Bei Er | 8As |
| Harry Lim Le Jon | 7As |
| Muhammad Aidil Iqbal Bin Mohd Ridzuan | 6As |
| Nithya Geraldinee Kesavan Gopinath Leonard | 6As |
| Tan Lu-Shern | 6As |
| Ng Po Hua | 6As |
| Tharshearn Gandi | 5As |
| Ho Shin Chyi | 5As |
| Tashvin Ramesh | 5As |
| See Chye Dong | 9As |
| Shrivarshann Srijeyan | 8As |
| Thenishwaran Karuppiah | 7As |
| Lim No Jun | 7As |
| Khoo Wei Quan | 7As |
| Loh Leyi | 6As |
| Chiw Hong Yeong | 5As |
| Chong Yi Pei | 5As |
| Sudheish Parameswaran | 7As |
| Nursarah Binti Mohammad Firdaus Aloysius | 8As |
| Lim Ting Xuan | 7As |
| Hoe Hui Wen | 6As |
| Ho Pei Xuan | 6As |
| Ma Kok Weng | 6As |
| Tharshinny Gandi | 6As |
| Thanessan Suburamaniam | 5As |
| Shriyaa Daniel | 5As |
| Chu Rhung Ern | 8As |
| Balsimran Kaur Manmon Singh | 6As |
| Lau Yun Zhuo | 6As |
| Akshatha Daniel | 8As |
| Pevanjit Kaur Amerjit Singh | 8As |
| Chew Kai Shen | 7As |
| Lim Wen Jen | 7As |
| Ng Li Xin | 7As |
| Khoo Wei Jin | 7As |
| Iman Binti Huszainey | 6As |
| Lim Chi Yin | 7As |
| Mavin Karunanidhy | 7As |
| Lim Chee Xue | 7As |
| Tan Kah Woon | 7As |
| Jeremy Tan Tsin Jet | 6As |
| Ishwaar Karunanidhy | 7As |
| Low Hao Yang | 7As |
| Dhanesh Subramaniam Nair | 6As |
| Dennison Lau Lip Hui | 6As |
IGCSE Overall Achievement
| Nov 2023 | June 2023 | ||
| Year | Percentage | Year | Percentage |
| A*/A | 50% | A*/A | 36% |
| B | 17% | B | 19% |
| C | 5% | C | 20% |
| Passing Rate | 100% | Passing Rate | 94% |
| Nov 2022 | June 2022 | ||
| Year | Percentage | Year | Percentage |
| A*/A | 68% | A*/A | 49% |
| B | 10% | B | 22% |
| C | 3% | C | 12% |
| Passing Rate | 100% | Passing Rate | 100% |
| Nov 2021 | June 2021 | ||
| Year | Percentage | Year | Percentage |
| A*/A | 56% | A*/A | 50% |
| B | 22% | B | 14% |
| C | 0% | C | 14% |
| Passing Rate | 100% | Passing Rate | 100% |
| Nov 2020 | June 2020 | ||
| Year | Percentage | Year | Percentage |
| A*/A | 35% | A*/A | 49% |
| B | 17% | B | 22% |
| C | 14% | C | 15% |
| Passing Rate | 100% | Passing Rate | 100% |
| Nov 2019 | June 2019 | ||
| Year | Percentage | Year | Percentage |
| A*/A | 77% | A*/A | 37% |
| B | 9% | B | 23% |
| C | 14% | C | 17% |
| Passing Rate | 100% | Passing Rate | 100% |
| June 2018 | |
| Year | Percentage |
| A*/A | 35% |
| B | 12% |
| C | 13% |
| Passing Rate | 100% |
| June 2017 | |
| Year | Percentage |
| A*/A | 33% |
| B | 22% |
| C | 19% |
| Passing Rate | 100% |
| June 2016 | |
| Year | Percentage |
| A*/A | 38% |
| B | 13% |
| C | 13% |
| Passing Rate | 100% |
| June 2015 | |
| Year | Percentage |
| A*/A | 44% |
| B | 25% |
| C | 11% |
| Passing Rate | 100% |
| Nov 2014 | |
| Year | Percentage |
| A*/A | 30% |
| B | 18% |
| C | 17% |
| Passing Rate | 100% |
Year 9 Checkpoint High Achievers
- 2019 DAVINA KISHON (Top in Malaysia – Science)
- 2019 AMELIA WONG
- 2019 AMIR HAMZA
- 2019 MATTHEW LEE
- 2019 SULAIMAN KHONG
Year 6 Achievement Test High Achievers
- 2021 SOKKA THEVARPALANISAMY
- 2021 PRAVJIT SINGH
- 2021 LOKKHESH WIGNESWARAN
- 2020 MUHAMAD AARYAN AL AMEEN
- 2020 DANETTA DIVYA JAMES
- 2019 PURANI SELVAGANABATHY
- 2019 PIERRE DOMINIC LOH DIMATULAC
- 2018 RIQKESH RAZ SINGH
- 2018 DYLAN EU JIUN KAI
- 2017 SHUATTEE A/P VELOO
- 2016 ZUBARIA KHONG JICHENG
- 2016 YEOH EEVIIAN
- 2015 BALSIMRAN KAUR A/P MANMON SINGH
- 2014 PEVANJIT KAUR A/P AMERJIT SINGH
Achievements by Zenith International School Alumni
- Dennison Lau Lip Hui 4A* Top Achievers Cambridge A Level 2016 @Inti College Nilai
- Mavin Karunanidhy 1A*2A Cambridge GCE A Level High Achiever @Sunway College
- Akshatha Daniel 1A*3A Cambridge GCS A Level High Achiever @Sunway College
- Balsimran Kaur Manmon Singh 85.00 Distinction Score MUFY High Distinction Achiever @Monash University
- Shirvarshann Srijeyan 4A* A-level High Achievers June 2021 @ INTI College Nilai