SFI (Strong Future International) is an online based multi-level marketing opportunity. It is a part of Carson Services, Inc a 20 year old Nebraska, United States company that is a member of the Better Business Bureau serving southern Nebraska.
SFI was launched in 1998. Today, with tens of thousands of affiliates in over 200 countries, it is believed to be the largest affiliate network in the world.

SFI's unprecedented success has been largely attributed to the unique makeup of its affiliate program—a hybrid combination of the best parts of traditional direct sales and network marketing, combined with the technological advantages of the Internet. Highly automated, SFI's expansive core computer system processes thousands of requests a day, around the clock, from around the world.

SFI is revolutionizing the way companies market their products and services, including Veriuni and the International Association of Home-Business Entrepreneurs (IAHBE). With its enormous base of independent affiliates, SFI has the power to reach tens of millions of consumers and businesses worldwide. SFI affiliates can also aggressively target niche markets with high market penetration.