We took the data of over 5 million companies and wanted to figure out the most common email patterns used by companies by their headcount. Here’s what we found out.

As we predicted, smaller companies tend to use just {first} only. What’s interesting is that mid-size companies like using {f}{last} and changes to {first}.{last} when you get to the larger companies.

1
{first} 61.09%
{f}{last} 14.55%
{first}.{last} 13.45%
{first}{last} 4%
{last} 3.64%

1-10
{first} 71.48%
{f}{last} 12.57%
{first}.{last} 9.82%
{last} 1.98%
{first}{last} 1.43%

2-10
{first} 64.91%
{first}.{last} 14.71%
{f}{last} 14.08%
{last} 2.02%
{first}{last} 1.34%

11-50
{first} 41.91%
{f}{last} 26.63%
{first}.{last} 22.66%
{first}{l} 2.67%
{last} 2.07%

51-200
{f}{last} 41.76%
{first}.{last} 30.45%
{first} 16.99%
{first}{l} 3.56%
{first}{last} 1.83%

201-500
{f}{last} 44.75%
{first}.{last} 35.16%
{first} 7.43%
{first}{l} 3.44%
{first}{last} 2.34%

501-1000
{f}{last} 41.8%
{first}.{last} 40.85%
{first} 5%
{first}{last} 2.86%
{first}{l} 2.34%

1001-5000
{first}.{last} 48.1%
{f}{last} 34.74%
{first} 3.63%
{first}{last} 2.45%
{f}.{last} 2.27%

5001-10000
{first}.{last} 55.23%
{f}{last} 26.17%
{first} 3.43%
{first}{last} 3%
{last}{f} 2.85%

10001+
{first}.{last} 56.31%
{f}{last} 21.75%
{first} 6.57%
{first}_{last} 3.55%
{first}{last} 3.4%