21 Engineering And Service

Why Choose
21ES?

Tired of training that's all theory but can't be applied on the job? We're different — every instructor is a real practitioner from industry.

30+ Years Experience
100% On-site
500+ Clients
Hands-on Workshop

Why Choose Us

5 Reasons Clients Choose 21ES

01
🚀
Teaching from Real Experience, Not Just Textbooks
Our instructors are real experts with over 30 years of direct experience in industrial manufacturing. We understand your on-site problems better than anyone.
05
👥
Small Class Sizes — Quality Over Quantity
Transform "one-way lecture listening" into "discussion, debate, and problem-solving." Every participant leaves with solid, actionable knowledge.
02
⚙️
Expertise in World-Class Tools
TPM, Lean, TQM, Six Sigma — direct experience in cost reduction and productivity improvement with proven tools.
03
🎯
Real Fieldwork, Tailor-Made Solutions
We focus on the "Real Worksite" (Genba) to analyze and solve problems specifically for each organization.
04
💎
Concrete Results & Strong Teamwork
We're not just trainers who come and go — we're partners ready to provide intensive practical guidance until we achieve outstanding results.
Mr. Narongsak Nanthagasigorn
30+ Years Expert
Instructor Profile
Mr. Narongsak Nanthagasigorn
Industrial Engineer · Senior Consultant
A highly qualified industrial and manufacturing engineer with over 30 years of experience at Seagate Technology, Microchip Technology, and Lear Corporation. Expert in Lean Manufacturing, Six Sigma, and Design of Experiment.
Lean Manufacturing Six Sigma Design of Experiment TPM Plant Layout AI Kaizen

Ready to Upgrade?

Don't let workplace problems hold back your business growth

Let 21ES unlock your team's potential on-site.

Phone
02-988-0211
Website
www.21es.co.th
Email
info@21es.co.th
Address
9/1 Chueamsampan Rd, Nongchok, Bangkok 10530