About us

We guarantee that Sigma are your best choice for your next piling purchase.

A reputation that stands the test of time With over 45 years’ experience specialising in the piling industry and a primary focus on relationships, we know what our customers are looking for and where to find it.


Countries shipped to


Impressive machines


Trusted brands sold


Year in business

Why choose Sigma? We’re industry leaders for a reason

We are experts in the piling industry with over 45 years’ experience. Our team are experts in the field and we know what our customers are looking for and where to find it.

We are specialists in building long term relationships with our clients with some of the most fruitful starting more than two decades ago, and still going strong to this day.

We understand deadlines which is why every machine we sell will be ready to go straight from delivery to the job site with no down time or repairs needed.

We make sure our exclusively sourced machinery comes from suppliers we can trust and who won’t let us down. We only sell the finest quality machinery and parts.

A promise to our customers 

Our personal guarantee and binding promise to you is that we guarantee you can take any machinery you buy from us straight from delivery to the job site with no downtime. That’s been our promise to our customers for over 45 years and we stick by it every single time.

Have confidence in our service. If the machine is not to your satisfaction or does not perform the way it should all you need to do is let us know and we will put it right. Guaranteed.

Wherever you are, we’ll get your machine to you We deliver all around the world

We believe that your acquisition should be a simple and straightforward experience, our highly skilled and dedicated team accustomed to working with global clients are always on hand around the clock to guide you through for an easy transition of ownership.

Get to know who you’re buying from The Sigma team

Profile image of Adrian James

Adrian James


Profile image of Kurt James

Kurt James


Profile image of James Harvey

James Harvey

Head of Major Clients & Strategy

Profile image of Sarah Sweeney

Sarah Sweeney

Head of Business Development

Profile image of Helen Gawthorpe

Helen Gawthorpe

Head of UK Operations

Profile image of Barry Saltmarsh

Barry Saltmarsh

Head of Customer Service & Aftersales

Profile image of Julie Goble

Julie Goble

Head of Accounts

Profile image of Jonathan Horsley

Jonathan Horsley

Business Development Manager

Profile image of Paul Ralph

Paul Ralph

Global Sourcing Manager

Profile image of Corrie Saltmarsh

Corrie Saltmarsh

Administration Executive

From 1975 to today 45 years going strong

Founded by Adrian James, Sigma started as James and Sons, a Bristol-based supplier of used machinery. As the James family grew, the business moved to the industrial heartlands of Middlesbrough where we became Sigma where we are now the specialists in piling, drilling and foundation machinery, renowned for our expertise, service and long-lasting relationships.

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