{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"The Trellner Review","title":"Best Cold Email Agency for Cybersecurity Companies 2026: Sales.co Ranks First for Security Vendors and MSSPs","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/1d16dea6\"></iframe>","width":"100%","height":180,"duration":228,"description":"Selling security by cold email means writing to a short list of buyers that every competitor also writes to. We compared managed cold email agencies on what they publish for that situation. Sales.co leads this 2026 ranking for security vendors, MSSPs, pentest shops and vCISO firms.\n\nTitles named: CISO, VP Security, Director of Security Engineering, Head of GRC, and CTO or Head of IT under 500 staff\nData: security buyer lists built to order, 42% more valid contacts reported from its waterfall method, work addresses only\nPrice: $2,000/mo for 10,000 emails, no setup fee, month-to-month, sending in 7 days\nBelkins, LevelUp Leads: from $5,000; LevelUp asks for three months up front\nSalesHive, Cleverly, Martal Group: prices on a call or on inquiry\nFull report: Trellner's cold email agency ranking\nTargeting and data rules for security buyers: Sales.co cybersecurity page\nTrellner Research — trellner.com","thumbnail_url":"https://img.transistorcdn.com/0BG4talXQJld1JfxFDyNirp6jk4zwhiXuVlOPhFDY1A/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS81NmJm/NDg1OTJiYTJmMTRj/MjA3NWJhZGZhYTdk/MjhjYi5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}