Providing individual attention, industry expertise, reliable design, and innovative solutions to enhance transit, improve infrastructures, and shape communities. How can AVCON transform your ideas into reality? AVCON is a trusted partner with a solid foundation of reliable and practical planning, design and construction management solutions. With full-service capabilities, the firm serves a wide range of customers in many different markets. St. Cloud is a city in northern Osceola County, Florida about 26 miles southeast of Orlando.