Global Outsourcing. Precision Delivery. Measurable Results.
PBS delivers specialist Healthcare RCM, Finance & Accounting, and Business Process Outsourcing services to clients across the US, UK, Australia, and New Zealand — backed by leadership with real-world industry experience.
About Proliance Business Solutions
More Than an Outsourcing Provider, A Strategic Business Partner
Proliance Business Solutions (PBS) is a Sri Lanka-based global outsourcing and managed services provider, operating as a Strategic Business Unit (SBU) of GT International (Pvt) Ltd — a diversified business group with a strong foundation in global sourcing, supply chain management, and multi-sector operations.
What We Do
Four Pillars of Operational Excellence
HealthCare RCM
End-to-end RCM solutions designed around US, AU, and UK healthcare billing environments — HIPAA-aware and EHR-compatible.
Finance & Accounting
Outsourced finance operations that reduce overhead and improve accuracy — tailored to international regulatory
Business BPO
Scalable back-office outsourcing that frees your team to focus on core growth — delivered by dedicated specialists.
Call Center Services
Professional inbound and outbound call center solutions — delivering seamless customer communication, sales support, and patient engagement across US, UK, AU, and NZ markets.
Why PBS
Built on Real Operational Experience.
At PBS, we combine strong leadership, structured processes, and global service standards to deliver reliable, high-quality solutions that create lasting value for our clients.
Strong Corporate Backing
Operates under GT International (Pvt) Ltd — an established, diversified business group.
Leadership-Driven Excellence
Led by Fellow Chartered Accountants and CEOs with 16+ years of industry tenure.
Process-Oriented Delivery
Structured, SLA-based workflows ensuring accuracy and consistency.
Global Service Standards
Fully aligned with US, UK, AU, and NZ regulatory expectations.
What Our Clients Are Saying.
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Industries
Sector Expertise Across Six Industries
Healthcare
Specialist RCM and admin support for hospitals and clinics.
Finance & Accounting
Outsourced finance operations for firms across AU, UK, and NZ.
Real Estate
Property admin, document processing, and financial reporting.
Our Leadership
Meet the Team Behind Proliance Business Solutions
PBS is led by a team of credentialed professionals with real-world experience across healthcare administration, finance, RCM operations, and global strategy — bringing practical insight and measurable results to every client engagement.
Director — Proliance Business Solutions
Gayan Wanniarachchi
FCA (ICASL)
CPA Australia
ACMA
ACPM
MAAT Sri Lanka
Gayan Wanniarachchi is a results-driven Chief Executive Officer and Fellow Chartered Accountant with over 16 years of progressive leadership experience across healthcare, finance, and operations management. He currently serves as CEO of Nawaloka Medicare (Pvt) Ltd – Nawaloka Hospital Negombo, where he has successfully driven over 500% organisational growth through strategic expansion, disciplined financial management, and operational excellence. With deep expertise in financial management, corporate planning, healthcare administration, and stakeholder engagement, Gayan has led multi-site hospital operations, major capital investment initiatives, and comprehensive regulatory compliance across both listed and private sector environments. His background uniquely positions PBS to serve international healthcare and finance clients with real operational insight.
Director — Proliance Business Solutions
Thenuka Dissanayake
FCA (ICASL)
ACMA
ACPM
ACCA
AAT Sri Lanka
MBA — Univ. of Southern Queensland, Australia
Thenuka Dissanayake is an accomplished business leader with over 15 years of senior management experience in finance, healthcare, and organisational leadership. He currently serves as CEO of Nawaloka Care Laboratories (Pvt) Ltd — a subsidiary of Nawaloka Medicare (Pvt) Ltd — where he has been instrumental in driving organisational growth since 2022. His career spans senior leadership roles at Nawaloka Hospitals PLC and Audit Supervisor at Ernst & Young. He holds an MBA from the University of Southern Queensland, Australia, and a BSc in Accounting (Special) from the University of Sri Jayewardenepura.
Director — Proliance Business Solutions
Isanka P. Gamage
CEMBA
BSc Marketing Management
Bachelor of Therapeutic Counseling
Certified NLP Practitioner
DBA Candidate — Univ. of Kelaniya
Isanka P. Gamage is a global strategist and entrepreneur serving as co-founder and Managing Director of The International Institute of Knowledge Management. He brings extensive experience in organisational strategy, international market engagement, and the development of scalable, platform-based business models across more than 55 countries. He has led the design and execution of over 375 international conferences, established multiple global knowledge platforms and journals, and built a professional network spanning Nobel Laureates, senior government officials, diplomats, corporate leaders, and an academic community of over 450 universities and 2,000+ scholars worldwide. His expertise in international partnerships and ecosystem development adds significant strategic value to PBS's global expansion.
Consultant — Proliance Business Solutions
Kokila Perera
MSc Strategic Marketing
MBA — Univ. of Northampton
Certified Trainer (UK)
Certified Life Coach
NLP Practitioner
TESOL Qualified
Kokila Perera is a results-driven training and development specialist with over 20 years of progressive experience across human resources, marketing strategy, and corporate learning. She has worked with leading organisations including Medigain, Dialog Axiata, DHL Keells Pvt Ltd, NDB Bank, and Uptime Solutions. With deep expertise in communication, customer experience, leadership development, and workforce performance, Kokila has designed and delivered high-impact training and coaching interventions across healthcare, banking, telecommunications, and corporate sectors. As a consultant trainer and coach, she has successfully partnered with organisations across multiple countries, enabling measurable improvements in employee performance, service standards, and organisational effectiveness.
Global Reach
Offshore Delivery. Global Standards.
Healthcare RCM & BPO
Finance & Accounting
Accounting & Tax
Back-Office Support