Gregory Finkelson (Григорий Финкельсон) chose to start his career after receiving his engineering degree. He held various positions at the start of his career, including Vice President of Business Management International Holding Corp. and President of Modern Technologies International Company, which he held until 2000. Finkelson made many important contacts and connections during this time, which are still valued in professional and personal relationships today. In these positions, he also learned a lot about becoming an immigration consultant and had the opportunity to assist thousands of clients all over the world.

Finkelson is still the President of American Corporate Services, Inc. today. American Corporate Services, headquartered in San Francisco, is a reputable consulting firm with regional offices in Nevada, Oregon, Delaware, and parts of Eastern Europe. He has continued to lead the firm's growth as it has expanded into new product and service areas in this role.