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Global SME, Operating in 48 countries

SQS, also known as Sterling Quality Services, are a SME with a global presence, with offices in the UK & Australia.

SQS specialise in providing the following services:


SQS have an extensive global network of qualified and experienced inspectors whose locations provide a responsive cost effective inspection service solution for clients. 

SQS is a global SME, offering expediting services to ensure that every aspect of our clients production is monitored and reviewed to ensure that all elements are examined and considered and that projects are delivered on time and in budget..


SQS can provide quality assurance services in over 48 countries, to all sectors, ensuring that quality standards can be met.

Operating for 30 years

SQS Inspection, Expediting and Quality Assurance Services have a reputation in the industry for meeting and exceeding clients expectations. From day one every member of the team has gone above and beyond for their clients projects. SQS believe a lot of this is down to the ethics and values that they work by. This may be the reason they have customers that have been with them since 1991. The company was created to ensure projects had consistent continual support and this is still true today. They have always taken great pride in providing a quality service but with the personal touch you don't necessarily get from a large corporation.

Operators and EPC’s for Oil & Gas, Power Generation, Nuclear, Renewables, Off Shore Renewables, Mining, Petrochem, Pharmaceutical, Rail and Marine throughout the world choose SQS.


2000 Local Experts over 48 Countries

Over 30 years SQS has grown a global network of trusted local, highly qualified experts. All our services are tailored to project requirements,  which are delivered on time and in full.

Bespoke Management System

Accessibility to information is vital, from project updates to monitoring of budget allocation or immediate information needed for reporting. SQS bespoke management system (Smarter) supplies all this information.

SQS have developed a unique approach and set exceptional standards. Client satisfaction is paramount to SQS and so they believe it is important to assist project teams in every way they can.

Reports & Project Support Line

Reports reviewed and issued within 24 hours of the visit.

Out of hours telephone number for project support 24/7 365 days a year.


The SQS Team
With over 30 years of experience the SQS coordination team work diligently with client project teams and the vendors to ensure successful delivery both with regards quality, budget and delivery.  Providing support from cradle to grave of the project.

Consistency in client contact within the regional office.

SQS  Inspection services, Expediting and Quality Assurance Services team understand fast and thorough communication with the Project is the key to success.

Reducing Carbon Footprint

SQS have taken steps to reduce their carbon footprint as a business. Read more 

Collaboration & Innovation
At SQS they are always interested in how they can add value to clients projects through collaboration and innovation. If you are a micro or SME company that would like to collaborate with SQS please get in contact here

For further information on SQS and also how we can assist your project, please go to our contact page and get in touch with one of our offices.


Local resources on a global scale

ISO 9001:2015 registered for the provision of Quality Assurance, Inspection, and Expediting Services

ISO14001 Certified

FPAL Approved

Member of the Energy Industry Council

Member of Climate Hub 

Sponsor of 'The Road to COP26

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