Lean Six Sigma · Industry 4.0

We make factories run better.

Opex Consulting Group helps industrial teams close the gaps in people, process, and technology. We start from Lean Six Sigma and finish with Industry 4.0 that actually gets used on your shop floor.

15+ years
Working with SEA industry
4-phase
Adoption framework
3 offices
SG · ID · MY
Trusted by manufacturers, F&B, chemicals, mining and energy firms
What we do

Consulting, training, and software, all under one roof.

We cover the whole journey from assessment to implementation, so you work with one accountable partner instead of five. No finger pointing, no gaps between phases.

Operational Consulting

Lean Six Sigma diagnostics, value-stream mapping, and kaizen facilitation that surface real cash leaks.

  • Loss and waste analysis
  • Process redesign
  • Performance management systems

Training and Certification

Lean Six Sigma Yellow, Green, and Black Belt, plus Industry 4.0 upskilling for the shop floor and leadership.

  • Public and in-house classes
  • Capstone projects on your lines
  • Certified master trainers

Lean SIRI Assessment

Smart Industry Readiness Index assessment by certified assessors. You get an objective baseline and a prioritised roadmap.

  • Official SIRI scoring
  • Maturity gap analysis
  • 12 to 24 month roadmap

OpexDX Digital Platform

Our own digital-transformation platform: MES, dashboards, and IoT, deployed where off-the-shelf tools fall short.

  • Real-time OEE and KPIs
  • Edge IoT ingestion
  • Modular, buy what you need

Industry 4.0 Implementation

From sensors to cloud, we design, integrate, and deploy the technology stack that fits your reality.

  • Sensor and gateway selection
  • Systems integration
  • Data and analytics pipelines

Change Management

The reason 70% of transformations fail is people, not tech. We make adoption the outcome, not a hope.

  • Stakeholder alignment
  • Shop-floor adoption plays
  • Sustainment and governance

Not sure where to start?

A Lean SIRI assessment gives you an objective starting point in 2 weeks.

Talk to our team
How we work

A 4-phase path that actually sticks.

A disciplined, repeatable way to get from where you are today to a measurable, sustained uplift in performance. Not a slide deck and a goodbye.

01

Assessment

We run a Lean SIRI assessment and map your value streams to find out where you stand and where the biggest leaks are.

02

Improvement

Lean Six Sigma kaizens and quick wins that pay for the programme while building real capability inside your team.

03

Solutioning

We design your Industry 4.0 roadmap with the right technologies, sequenced against your reality rather than a vendor wishlist.

04

Implementation

We deploy, integrate, train, and hand over a working system your people actually use day to day.

Why it matters

Waiting costs you every quarter.

Operations teams that put off digital transformation pay for it in downtime, waste, and talent. These are industry benchmarks, not guesses.

$260k
Cost of unplanned downtime per hour
70%
Of digital transformations fall short
547%
Average 3-year ROI from a successful programme
18 to 25%
Maintenance cost reduction at maturity
Our platforms

Software built by people who have run plants.

When off-the-shelf tools fall short, we deploy our own industrial platforms. They are built on the same Lean foundation as our consulting work.

OpexMX

CMMS for maintenance teams. The system your technicians actually want to use.

See the platforms

OpexMES

Manufacturing execution: production orders, quality, and live OEE.

See the platforms

Command Center

Executive KPI dashboards across every plant and every line.

See the platforms

OpexFlow

Edge IoT ingestion for Modbus, OPC-UA, and MQTT. Your machines, talking.

See the platforms

OpexNow

InvoiceNow and Peppol e-invoicing for Singapore businesses. Send and receive compliant e-invoices, system to system.

See the platforms
Where we are

Three offices, one region.

Singapore

Headquarters
Opex Consulting Group, Singapore
+65 6640 3178

Jakarta

Indonesia
Opex Consulting Group, Jakarta
+62 21 3042 0660

Penang

Malaysia
Opex Consulting Group, Penang
+60 4 202 0971
Questions

Things people ask us

Still deciding whether OpexCG is the right partner? These come up most often.

No. A lot of our work is pure consulting and training: Lean Six Sigma certifications, kaizen facilitation, and Lean SIRI assessments. We only recommend software when it pays for itself.

SIRI (Smart Industry Readiness Index) is an internationally recognised framework for measuring how digitally mature an industrial operation is. Our certified assessors benchmark your plants and turn that into a prioritised roadmap.

Most clients see real quick wins inside the first 90 days during the Improvement phase. The full Industry 4.0 roadmap typically rolls out over 6 to 18 months.

Yes, and we treat that as core to every engagement. We run Lean Six Sigma (Green and Black Belt), change management, and shop-floor upskilling so the transformation outlives us.

Manufacturing, food and beverage, chemicals, mining and energy, and automotive. Our consultants and platforms are tuned for asset-heavy, regulated operations.

Singapore (HQ), Jakarta, and Penang. We cover Southeast Asia with on-the-ground teams who actually understand the region.

Get started

Let us find your biggest operational leak.

Book a free 30-minute consultation. We will map one concrete quick win you can act on this quarter. No obligation, no hard sell.