Swami Nathan



"As CEO/Managing Director and Lead Auditor at Sustainable Certification, I make it my business to ensure other businesses are provided with high-impact, industry-leading quality assurance services. I’m 100% committed to ensuring our multi-talented team of auditors deliver personalised, intelligent and helpful ISO certification expertise

Our second and third party auditing services are fully adapted to each customer’s unique timeframes, goals and objectives. Consistently tapping into my own in-depth IT experience to design and implement innovative business models and management systems, Sustainable Certification consists of a multidisciplinary team of auditing specialists. Our auditors stem from a range of technical disciplines, guaranteeing the delivery of high-quality, industry-specialised second and third party auditing services. We’ll elevate your business to higher-level system/process maturity.

Amelia Critch



I’m an ISO Certification / Second and Third Party Auditing all-rounder that’s heavily involved in driving forward personal, intelligent and helpful ISO certification services at Sustainable Certification. Combining my quality assured customer service background with my significant focus on management system improvements, I’m continually

evolving in my role alongside Sustainable Certification. Constantly adding ISO certifications to my skills toolkit, such qualifications both enable me to provide additional second and third party auditing services to customers, as well as more in-depth, in-tune assistance to Sustainable Certification’s team of auditors. I’m responsible for ensuring our internal management systems continue to meet the JAS-ANZ quality assurance criteria, underpinned by my long-term appreciation of the importance of complying with industry standards and regulations.

Tushar Nathan



A lead auditor at Sustainable Certification, I live by our company motto of delivering personalised, intelligent and helpful ISO certification. A thorough and collaborative third party auditor, my aim is to consistently deliver impactful, company-customised management systems focused on elevating each business to higher-level

system/process maturity. With a background in commerce and fast-paced customer service, in addition to the monitoring and promoting of ISO certification tools and processes, I bring to the auditing table an all-encompassing perspective of business operations that address multiple stakeholder needs. Certified in ISO 9001 QMS, ISO 14001 EMS and ASNZ 4801 OH&S, I’m constantly building on my auditing skillset to the benefit of Sustainable Certification and its customers.