William Kendrick - PromoSource.com is the oldest promotional products company in the Washington Metro DC area and one of the oldest nationwide. We are always willing to go the extra mile to make sure your experience with us exceeds your expectations.The William Kendrick Company has one of the most diverse selections of custom corporate gifts around, from traditional personalized pens to custom overseas products to eco-friendly items featuring your logo. And if you don't see what you're looking for on our website or in our catalog, just call or send an email. No matter what business you're in, we can help you find the perfect promotional items.