Lack of time is one of the typical issues founders face. Contacting investors takes time and is undoubtedly crucial. Since time is ultimately the most valuable resource, I am happy to see a tool that can help entrepreneurs save a significant amount of time.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Investor List - A searchable, crowdsourced list of over 1k investors
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
Investor Hunt - Investor Hunt is the internet’s largest investor database with 40k+ angels and VCs from all over the world.
clearout.io - Clearout Email Finder & Email Verification Service - Drive sustainable business growth by expanding your reach, lowering hard bounces, and improving deliverability rates.
OpenVC - 2200+ VC firms by thesis to find 'best fit' for your startup