Discover the top-performing cold email agencies ranked by verified metrics. All data is pulled directly from Instantly.ai API connections - no self-reported numbers.
Our rankings are based on verified performance data from Instantly.ai. We don't rely on self-reported metrics - every number comes directly from agency API connections.
Primary ranking factor combining reply rates and email volume to reflect overall performance.
Secondary ranking factor showing the percentage of emails that received replies.
All metrics are verified through read-only Instantly.ai API connections, updated hourly.
Ranked by engagement value and reply rate
Computer Software
Reply Rate
3.1%
Leads Contacted
25,383
Cold Email Agency
Reply Rate
14.9%
Leads Contacted
1,056
Cold Email Agency
Reply Rate
6.4%
Leads Contacted
1,832
Cold Email Agency
Reply Rate
10.2%
Leads Contacted
719
Cold Email Agency
Reply Rate
10.9%
Leads Contacted
192
Cold Email Agency
Reply Rate
7.5%
Leads Contacted
214
Cold Email Agency
Reply Rate
13.9%
Leads Contacted
79
Selecting the right cold email agency is crucial for your outreach success. Here's what to look for:
Look for agencies with verified performance data, not self-reported numbers. All agencies on TrustOutreach are verified through Instantly.ai.
A good reply rate is typically 10-20%. Top performers achieve 20-30%+. Compare agencies by their verified reply rates.
Consider agencies with experience in your industry. Check their category and case studies to find the best fit.
Consider the scale you need. Some agencies specialize in high-volume campaigns, while others focus on quality over quantity.
Review their verified metrics, case studies, and client testimonials. Look for consistent performance over time.
Choose agencies that are transparent about their methods and results. Verified metrics provide the transparency you need.
The best cold email agencies combine high reply rates, consistent performance, and verified metrics. We rank agencies by engagement value (combining reply rates and volume) and reply rate to identify top performers.
All rankings are based on verified data from Instantly.ai API connections. Agencies connect their accounts with read-only API keys, ensuring all metrics are authentic and updated hourly.
Industry benchmarks vary, but generally: 10-20% is considered good, 20-30% is excellent, and 30%+ is exceptional. The average across all verified agencies on TrustOutreach is 9.5%.
Rankings are updated hourly as new data is synced from Instantly.ai. This ensures you're always seeing the most current performance metrics.
Browse our complete directory of verified cold email agencies, compare metrics, and find the perfect partner for your outreach needs.
