Global Solar Installers Lead Sourcing

I need a proactive lead-manager who can research and compile a vetted list of solar panel installation companies worldwide. The goal is to identify firms that handle both residential and commercial projects and stand out for their experience, reputation, and broad service offering.

Here’s what I expect:
• A spreadsheet of qualified installers in key markets around the globe, each entry including company name, website, primary contact (with email and phone where publicly available), headquarters location, and regions served.
• A short note for every company summarising proven experience, notable projects or certifications, and the full range of services they provide (design, installation, maintenance, financing, etc.).
• Clear sourcing links so I can verify the information quickly.

Focus on accuracy and relevance—no generic directory scraping. If data is limited, indicate that transparently rather than guessing. A concise executive summary highlighting the top five stand-out companies would be a plus.

Please outline your approach, any research tools or databases you plan to use, and the timeframe you need to deliver the first draft and the final document.