Investment: Y Combinator → Circle Medical

NoteThe source directly confirms that Y Combinator invested in Circle Medical as part of the Summer 2015 batch. The 'round: YC batch' field is confirmed by the explicit 'Summer 2015' designation on the company page. However, the 'role: lead' field cannot be verified from this source—the page does not specify Y Combinator's role as 'lead' investor in any funding round. The source only confirms YC's participation in the YC batch program itself, not Y Combinator's role in subsequent funding rounds (the text mentions 'our most recent round of funding from WELL Health', indicating other investors exist, but does not clarify Y Combinator's role in that or other rounds). The batch participation is confirmed; the 'lead' role claim is unverifiable from this source.