Thailand

Top 16 largest Thai Companies in the Engineering & Construction industry by Market Cap

This is the list of the largest public listed companies in the Engineering & Construction industry from Thailand by market capitalization with links to their reference stock.

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Top Engineering & Construction Companies from Thailand as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 CH. Karnchang Public Company Ltd $629.2 M Thailand Thai Industrials Thai Engineering & Construction
2 Sino-Thai Engineering and Construction Public Company Ltd $377.9 M

(July 1, 2024)

 Thailand Thai Industrials Thai Engineering & Construction
3 T Engineering Corp Public Company Ltd $200.6 M

(Nov. 1, 2021)

 Thailand Thai Industrials Thai Engineering & Construction
4 Unique Engineering and Construction Public Company Ltd $92.6 M Thailand Thai Industrials Thai Engineering & Construction
5 Syntec Construction Public Company Ltd $80.6 M

(July 1, 2025)

 Thailand Thai Industrials Thai Engineering & Construction
6 TEAM Consulting Engineering and Management Public Company Ltd $78.4 M Thailand Thai Industrials Thai Engineering & Construction
7 Demco Public Company Ltd $76.3 M Thailand Thai Industrials Thai Engineering & Construction
8 Pylon Public Company Ltd $62.3 M Thailand Thai Industrials Thai Engineering & Construction
9 Seafco Public Company Ltd $49.7 M Thailand Thai Industrials Thai Engineering & Construction
10 Italian-Thai Development Public Company Ltd $45.2 M Thailand Thai Industrials Thai Engineering & Construction
11 J.R.W. Utility Public Company Ltd $40.8 M Thailand Thai Industrials Thai Engineering & Construction
12 Stonehenge Inter Public Company Ltd $36.9 M Thailand Thai Industrials Thai Engineering & Construction
13 Pre-Built Public Company Ltd $35.1 M Thailand Thai Industrials Thai Engineering & Construction
14 BJC Heavy Industries Public Company Ltd $29.7 M Thailand Thai Industrials Thai Engineering & Construction
15 TRC Construction Public Company Ltd $23.1 M Thailand Thai Industrials Thai Engineering & Construction
16 TTCL Public Company Ltd $2.9 M Thailand Thai Industrials Thai Engineering & Construction

Top Engineering & Construction Companies from Thailand as of Jan. 01, 2026

1. CH. Karnchang Public Company Ltd

Company Profile: CH. Karnchang Public Company Ltd
Market Cap (USD): $629.2 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

2. Sino-Thai Engineering and Construction Public Company Ltd

Company Profile: Sino-Thai Engineering and Construction Public Company Ltd
Market Cap (USD): $377.9 M (July 1, 2024)
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

3. T Engineering Corp Public Company Ltd

Company Profile: T Engineering Corp Public Company Ltd
Market Cap (USD): $200.6 M (Nov. 1, 2021)
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

4. Unique Engineering and Construction Public Company Ltd

Company Profile: Unique Engineering and Construction Public Company Ltd
Market Cap (USD): $92.6 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

5. Syntec Construction Public Company Ltd

Company Profile: Syntec Construction Public Company Ltd
Market Cap (USD): $80.6 M (July 1, 2025)
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

6. TEAM Consulting Engineering and Management Public Company Ltd

Company Profile: TEAM Consulting Engineering and Management Public Company Ltd
Market Cap (USD): $78.4 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

7. Demco Public Company Ltd

Company Profile: Demco Public Company Ltd
Market Cap (USD): $76.3 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

8. Pylon Public Company Ltd

Company Profile: Pylon Public Company Ltd
Market Cap (USD): $62.3 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

9. Seafco Public Company Ltd

Company Profile: Seafco Public Company Ltd
Market Cap (USD): $49.7 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

10. Italian-Thai Development Public Company Ltd

Company Profile: Italian-Thai Development Public Company Ltd
Market Cap (USD): $45.2 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

11. J.R.W. Utility Public Company Ltd

Company Profile: J.R.W. Utility Public Company Ltd
Market Cap (USD): $40.8 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

12. Stonehenge Inter Public Company Ltd

Company Profile: Stonehenge Inter Public Company Ltd
Market Cap (USD): $36.9 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

13. Pre-Built Public Company Ltd

Company Profile: Pre-Built Public Company Ltd
Market Cap (USD): $35.1 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

14. BJC Heavy Industries Public Company Ltd

Company Profile: BJC Heavy Industries Public Company Ltd
Market Cap (USD): $29.7 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

15. TRC Construction Public Company Ltd

Company Profile: TRC Construction Public Company Ltd
Market Cap (USD): $23.1 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

16. TTCL Public Company Ltd

Company Profile: TTCL Public Company Ltd
Market Cap (USD): $2.9 M
Country: Thailand
Sector: Thai Industrials
Industry: Thai Engineering & Construction

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