



Engineering process plants from concept to commissioning.
Engineering legacy since
Core capabilities
Industries served
Certified company
Engineer
Design & Engineering
Process design, detailed engineering and project management from concept to commissioning.
Build
Fabrication & Erection
Equipment, piping and structural steelwork fabricated at the workshop and erected at site.
Sustain
Retrofit & Maintain
Retrofitting, modification, shutdown works and mechanical maintenance for operating plants.
The Company
Your engineering partner for complex process plants
At DEC Engineering we combine design, fabrication and construction excellence to deliver complete industrial facilities — for the chemical, hydrocarbon, power, pharmaceutical, food and allied industries, across India and abroad.
Who we are
A trusted engineering partner, carrying a legacy since 1979
DEC Engineering Pvt. Ltd. was formed in 2007, carrying forward the legacy and intellectual properties of Project Technologists Pvt. Ltd. (PTPL) — a leading EPC contractor in India and abroad since 1979.
From design & engineering and procurement to project management, construction and plant retrofitting, we bring innovation, precision and excellence to every project we undertake.
DEC formed
Certified company
Support culture
Leadership
Steered by directors with decades of combined experience executing projects and operating companies in India and abroad.
- 01
Jitendrasinh Parmar
Director · Mechanical Engineer, 30+ years
- 02
Srinivasan Krishnan
Director · Mechanical Engineer, 29+ years
- 03
Shivaji Karande
Director · Commercial & Legal, 40+ years
Trusted by industry leaders









Engineering Capabilities
End-to-end capabilities, one accountable partner
Every stage of a plant's life — engineered, fabricated, erected, tested and maintained — under a single point of responsibility.




01 — Engineer
Design & Engineering
Process design, detailed engineering and project management — from concept to commissioning.

02 — Build
Fabrication & Construction
Equipment, mounded bullets, piping and structural steelwork — fabricated at the workshop, erected at site.

03 — Sustain
Commissioning & Lifecycle
Testing and commissioning, retrofitting, shutdown works and mechanical maintenance for operating plants.
- Equipment Erection
- Mounded Bullets Fabrication & Installation
- Piping & Structural Fabrication
- Testing & Commissioning
- Retrofitting, Modification & Shutdown
- Mechanical Maintenance
From First Concept to Full-Scale Operation.
- 01
Engineering & Design
- 02
Procurement & Sourcing
- 03
Fabrication & Construction
- 04
Testing & Commissioning
- 05
Operations & Maintenance
Industries We Serve
Wherever process industry builds
Planning a new project, upgrading existing systems or optimising plant operations — our team supports you at every step.

What we do
Design. Procure. Construct. Commission. Maintain.
Comprehensive solutions for design & engineering, procurement, project management, construction and plant retrofitting — one accountable EPC partner from first drawing to full operation.
A Division of DEC
DEC Envirosystems — cleaner plants, lower emissions
Our dedicated division provides turn-key solutions and technology for NOx reduction for cement and power plants — environmental engineering backed by strategic technology collaborations.
NOx Reduction Technology
Turn-key systems that cut nitrogen-oxide emissions at cement and power plants.
Environmental Engineering
Engineering solutions that keep plants compliant and operating cleaner.
Technology Collaborations
Strategic partnerships with associates holding proven, successful track records.
Built for the industries that power India
DEC Engineering at a glance
Engineering legacy since
Core capabilities
Industries served
Support culture
Why DEC
From concept to commissioning.
A legacy since 1979
Carrying forward the legacy and intellectual properties of Project Technologists Pvt. Ltd. (PTPL).
One accountable partner
From concept to commissioning — design, fabrication, construction and maintenance under a single point of responsibility.
ISO 9001 certified
A certified company delivering complete industrial facilities.
Across India and abroad
For the chemical, hydrocarbon, power, pharmaceutical, food and allied industries.
Request a Proposal
Tell us about your plant.
Share your project requirements and our engineering team will get back to you with a tailored proposal.
- +91 98794 99705
- mail@decengineering.com
- E-30, Aditya Park Society, Behind Hotel Sai Sita Ram, Makarpura, Vadodara 390014, Gujarat, India


