Welcome to the Sterling side of things!
Simplify Your Finance, Operations and Customer Experience
Invisible heroes — visible results
We are the Missing Piece businesses lean on for stability and operational efficiency. By combining our constantly enhanced expertise with seamless integration into your work style and systems, we deliver reliable, high-quality services that remain invisible to your clients and partners—ensuring their safety and a positive experience.
While you focus on your core activities and growth, we provide the support you need, bringing sterling quality to everything we undertake.
Let’s spark up your business!

Credit Management
Build stronger client relationships while improving your cash flow.

Customer Experience
Deliver exceptional multilingual customer service across cultures and languages.

Debt Recovery
Professional solutions for complex cases, handled with care.

Finance & Accounting
Reliable financial expertise tailored to your business needs.

HireChecker
Efficiently uncover hidden hires and protect your revenue.

Discover More
Explore how we deliver solutions that drive growth.
Our mission is to accompany our clients in growing their businesses, allowing them to focus on their core activities with ease through seamlessly integrated solutions, efficiently selected systems, and constantly enhanced expertise.
Discover our values!
SPARK embodies the values that drive us—Synergy, Persistence, Adaptability, Responsibility, and Knowledge. These principles guide how we work, connect, and create impact.
Rooted in collaboration, our values reflect what matters most to us, our partners, and clients. Discover how these values fuel our progress.
What is Sterling’s mission?
Sterling’s mission is to deliver scalable outsourcing and debt recovery solutions that reduce operational burden, strengthen financial control, and support long-term business performance.
Where is Sterling located?
Sterling has offices across Europe and Asia, allowing us to deliver multilingual, cross-border BPO services with both regional understanding and global scale.
What is Sterling’s key area of expertise?
Our core specialisms include credit management, debt recovery, finance & accounting, and multilingual customer experience outsourcing – all focused on improving business cash flow and operational efficiency.
How long has Sterling been in the outsourcing market?
Sterling has been supporting clients with professional outsourcing services for almost 20 years, partnering with organisations across the UK, EU, US, and Australia.
How does Sterling ensure quality and accuracy of service?
Sterling works with a range of industries including recruitment, finance, healthcare, insurance, energy, and professional services, adapting our BPO solutions to the requirements of each sector.
Which sectors do Sterling focus on?
We combine skilled talent with structured processes, performance monitoring, and regular reporting. Every service is overseen by experienced managers and guided by KPIs tailored to our clients’ needs.