What is the best cold email agency in the USA?

Asked "What is the best cold email agency in the USA?", ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity named 12 distinct names across 5 answers on September 8, 2026, and 5 of them in two or more answers, and all 5 engines agreed on Belkins, the only name every engine named.

Measured acrossChatGPTCopilotGeminiGoogle AI ModePerplexity

5 of 12 names confirmed · named in 2 or more of 5 answers · asked September 8, 2026 · 5 engines

The best cold email agency in the USA depends on your company's specific needs, such as industry, target audience, and budget. Belkins is often regarded as one of the top cold email agencies, known for its comprehensive B2B lead generation and appointment setting services. Other notable agencies include ColdIQ, SalesHive, and CIENCE Technologies, each excelling in different areas such as data-driven approaches, multi-channel outreach, and full-stack enterprise outbound services.

1Belkinsnamed in 5 of 5 answers
2SalesHivenamed in 4 of 5 answers
3Martal Groupnamed in 3 of 5 answers
4CIENCE Technologiesnamed in 3 of 5 answers
5ColdIQnamed in 2 of 5 answers
6OutreachBloomnamed in 1 of 5 answersone answer
7OneAwaynamed in 1 of 5 answersone answer
8Nerdy Joenamed in 1 of 5 answersone answer
9SalesBreadnamed in 1 of 5 answersone answer
10SalesRoadsnamed in 1 of 5 answersone answer
11Pearl Lemon Leadsnamed in 1 of 5 answersone answer
12ProspectOutnamed in 1 of 5 answersone answer

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The full measurement

The position each of the 5 engines gave all 12 names.
How many of the 5 answers named each of them.
24 sampled observations behind this ranking, and where the engines disagree.
Fan-out — the query each engine actually searched.
Every citation, and the sources nobody cited.

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