According to WS-I, a profile is
A set of named web services specifications at specific revision levels, together with a set of implementation and interoperability guidelines recommending how the specifications may be used to develop interoperable web services.
The WS-I is not a certifying authority; thus, every vendor can claim to be compliant to a profile. However the use of the test tool is required before a company can claim a product to be compliant. See WS-I Trademarks and Compliance claims requirements Archived 2013-06-08 at the Wayback Machine
"Activities and announcements | OASIS WS-I". www.oasis-ws-i.org. Retrieved 2020-07-19. http://www.oasis-ws-i.org/ ↩
"OASIS Announces Successful Completion of Web Services Interoperability (WS-I) Member Section". www.oasis-open.org. 21 December 2017. Retrieved 2020-07-19. https://www.oasis-open.org/news/pr/oasis-announces-successful-completion-of-web-services-interoperability-ws-i-member-section?platform=hootsuite ↩