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Sigma Prep

Sigma Prep

5.0(19 reviews)
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Coworking & Offices · Phra Khanong & On Nut

Located on Sukhumvit Rd in Thonglor, Sigma Prep operates coworking office space with a perfect 5-star rating, backed solidly by 19 individual customer reviews on record.

#3 of 14 coworking & offices in Phra Khanong & On Nut+0.5 vs the Phra Khanong & On Nut average of 4.5

What reviewers say

Kru Numfon and her colleagues are credited by students with significant test score improvements, particularly in SAT mathematics and IELTS composition. The center maintains strong professional teaching standards, clean facilities, well-structured curricula, and consistent communication with parents throughout students' enrollment periods.

  • patient instructors
  • proven test score gains
  • clean facility
  • structured curriculum

Editorial summary by Best of Thailand, based on 5 Google Maps reviews as of August 2026.

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