When you need metrology solutions, think CoMech. We’ve been around since 1985 and we just keep growing! Some of the biggest names in the UK transport industry trust CoMech for their solutions, and not to show off, but we provide accredited calibrations to many other national brands.

We’re well known in the rail sector and it’s where our roots began, but we have expertise and proficiency in the automotive and aerospace sectors too.

CoMech works in the centre of the UK’s rail industry in Derby in the East Midlands where we took over the ex-British rail calibration labs from Serco Rail which as we’re sure you know, became the UK rail industry’s only technical support provider for measurement.

When we expanded in 2016 we made the decision to move our support teams including our HR, compliance, admin, sales, marketing, logistics and finance teams over to the Rail Technology Centre. We did this so we could begin growing into other sectors, it was a poignant moment for us to return to the rail technology site where we began in 1985.

One thing about CoMech, is we’re hungry for growth and we’ve gone from strength to strength over the years, not just growing our team but keeping up and innovating on new technology compliance and regulations within the industry.

We’ve never quite lost the “small business” care though, our team work together to give our customers the best experience, as we like to say, at CoMech, we’re big enough to deliver but small enough to really care.


With some of the largest stocks of heritage rail gauges in the UK, our knowledge in the rail sector comes from years of working with some of the world’s leading brands in rail. This is coupled with our team’s combined experience within the sector.

We are constantly utilising new technologies to be applied within our UKAS-accredited laboratories. As we have kept up with an increase in demand and changing technologies, it has led to CoMech Metrology becoming one of the country’s most trusted specialists within the rail sector.

At CoMech, we are incredibly lucky to have such a dedicated and talented team to hand, which have been partly sourced over the years by Derby College apprentices and Derby University graduates. We take care to nurture new talent, who work alongside seasoned experts within the industry.

We are pleased to support our wide array of customers and suppliers with weekly deliveries throughout the UK. Our logistical support provides that much-needed link within their supply chain.

Specialists in calibration

We provide verification, calibration and precision measurement services within our custom-built ISO/IEC 17025 accredited laboratories


Our Accreditations

If you’ve heard of CoMech it’s probably because our reputation for quality and trust has led us to supplying some of the nation’s biggest brands.


Quality & Trust

Specialists In Calibration

Our on-site accredited research and development laboratories at CoMech Metrology provide a range of services to various customers and suppliers.



Our Sectors

Our work spans various industries and businesses, from SME’s to multi national companies, discover some of our industries.



We’re the leading independent calibration laboratory in the UK, see how our solutions and services can help you.

Contact our expert team