The Thailand data center market is poised for rapid expansion, with a projected market value rising from USD 1.45 billion in 2025 to USD 6.29 billion by 2031, reflecting a compound annual growth rate (CAGR) of 27.71%. This surge is driven by increasing investments from global hyperscalers, growing demand for cloud and AI infrastructure, and strategic government support. Thailand is expected to surpass Indonesia in planned data center capacity between 2026 and 2031, with a projected power capacity exceeding that of its regional neighbor. As of September 2025, the country’s pipeline of data center projects—encompassing those under construction, announced, and planned—reaches over 2.87 GW, nearly 3.7 times higher than Indonesia’s total. Bangkok remains the dominant hub, hosting 31 existing and 8 upcoming data centers, making it the focal point for advanced facilities, hyperscale developments, and dedicated cloud regions. Construction costs in Thailand currently range from $7 million to $8 million per megawatt (MW), offering a cost advantage over more mature markets like Singapore, Malaysia, and Indonesia. However, rising inflation, supply chain constraints, and increasing interest rates are expected to push these costs upward in the coming years. In November 2025, the Board of Investment (BOI) approved four major data center projects with a combined IT power capacity of approximately 376 MW. These include Telehouse (12 MW), Vistas Technology (80 MW), DAMAC Digital (84 MW), and Zenith Data Center and Cloud Services (200 MW), signaling strong investor confidence. The market landscape features a mix of established colocation providers and emerging players. Key existing operators include ST Telemedia Global Data Centres, AIS Business (CSL), OneAsia Network, True IDC, Internet Thailand, Telehouse, and SUPERNAP Thailand. New entrants such as DayOne, DAMAC Digital, Equinix, Empyrion Digital, Digital Edge DC, Epoch Digital (Actis), Galaxy Data Centers, Haoyang Data, NEXTDC, SC Zeus Data Centers, Nxera, CloudHQ, CtrlS Datacenters, Evolution Data Centres, Vistas Technologies, ZDATA Technologies, and others are expanding their footprint. Notable investments highlight Thailand’s growing importance in Southeast Asia’s digital infrastructure. ST Telemedia began construction on STT Bangkok 2 in March 2025 with a $200 million investment, expected to launch by the end of 2026. Hyperscalers are also making major commitments: Google has pledged $1 billion in regional investments, AWS plans $15 billion over five years, and Microsoft has selected Thailand for its lead regional data center. ByteDance (TikTok) announced a nearly $4 billion investment across three provinces, while SIAM AI Cloud committed 3.3 billion baht ($101 million) to expand AI-ready infrastructure, aiming to position Thailand as a regional AI hub. The report offers comprehensive insights into the market, including segmentation by IT, electrical, mechanical, cooling, and construction infrastructure; analysis of Tier standards; and detailed forecasts by city and power capacity. It also provides a vendor landscape with profiles of key IT infrastructure providers, construction contractors, support service firms, and investors. This research is valuable for stakeholders seeking to understand market dynamics, identify growth opportunities, assess investment risks, and navigate the evolving data center ecosystem in Thailand. With strong government backing, strategic location, and competitive build costs, Thailand is emerging as a critical node in Southeast Asia’s digital infrastructure network.