Muhammad Z.

🏆 Top Rated on Upwork | 4.9/5 ⭐ (180+ Reviews) 💼 277 Successful Upwork Projects | 9,700+ Hours 📈 Executive Assistant & Operations Support for Founders 🚀 500K+ Verified B2B Contacts Delivered 🤖 AI-Fluent: Claude & ChatGPT in My Daily Workflow ✅ 100% Email Verification Before Delivery Does your sales team hate dirty data? They should. Every bounced email is a wasted opportunity and a hit to your sender reputation. You do not need just a list builder, you need a data partner who understands that accuracy equals revenue. Hi, I am Muhammad Zain. I specialize in high-precision B2B list building and deep prospect research. While most freelancers rely on automated scrapers that deliver 40% bad data, I hand-curate every list using a Human + Tech verification method, so your outreach hits the inbox, not the spam folder. What I deliver: 1. Verified decision-maker lists: CEOs, VPs, Founders and niche roles, filtered by revenue, headcount, tech stack and industry. Recent work includes C-suite and IRO contact sourcing for a New York capital markets advisory firm and ICP qualification for German outbound campaigns. 2. Verified emails, honestly labeled: every email runs through MillionVerifier and NeverBounce plus manual checks before delivery. Risky emails are flagged separately in your sheet, so you always know exactly what you are sending to. 3. CRM cleanup and enrichment: invalid email removal, data enrichment and record merging for HubSpot, Salesforce and Zoho. One client had me review, verify and merge 2,000+ company records to close out a key quarterly objective. 4. Executive assistant and administrative support: recurring reports, trackers, follow-ups and research briefs for busy founders. A US marketing agency owner hired me for one monthly report; today I build the monthly and quarterly reports for her 20+ clients and handle her vendor and client follow-ups. 5. Ongoing research and reporting support: several clients keep me on long-term for monthly list refreshes, prospect research and client reporting operations. My tech stack: Apollo, LinkedIn Sales Navigator, ZoomInfo, Crunchbase, Clay, MillionVerifier, NeverBounce, HubSpot, ClickUp, Google Workspace. Let's prove the quality before you commit. Invite me to your job with your exact criteria and I will build a free sample of 5 to 10 leads. Need ongoing admin or reporting support instead? Send me one real task and I will deliver it within one business day. If you like the results, we start. If not, no hard feelings. Muhammad Zain