Appropriateness of flags to represent languages and the history of the HE Translations logo
In the past, a flag-based logo was used on the HE Translations website and on HE Translations business cards. For old times’ sake, here is an image of the original business card:

HE Translations, original business card
An illuminating blog post by James Offer under the heading “Why flags do not represent languages” prompted the abandonment of the flags. In essence, the blog states:
Flags are unique to a country or nation: but languages are often spoken across national borders. By using a flag for a language, you may confuse or even offend users.