Siblingship, Grandparentage & Avuncular Testing
Answers You Deserve. Accuracy You Can Trust.
Relationship DNA Testing
SuretyDNA provides world-renowned DNA testing services that go beyond paternity. Whether you're clarifying family connections, resolving legal matters, or seeking peace of mind, our Relationship DNA Tests deliver precise, reliable, and court-admissible results.
Services Offered
Siblingship Test
Determine whether two individuals share one or both biological parents.
Grandparentage Test
Verify a biological connection between a child and one or both grandparents.
Avuncular Test
Confirm whether an individual is biologically related as an aunt or uncle to a child.
Features
Results in 3–5 business days
Legal and non-legal testing options
AABB-accredited laboratories
Chain-of-custody protocols for court-admissible tests
99.9%+ accuracy in most conclusive cases
