Thompson-Liston Associates, Inc.

With over thirty years of corporate experience, Crossman Engineerings team of professional engineers, land surveyors and landscape architects has developed a successful record of planning, design, project management and innovation. Our entire staff is committed to performance, value and client satisfaction, and strives to provide personal and professional attention to each detail.

Established in 1979, Alpha Associates, Ltd., is a land surveying firm providing a range of services throughout Rhode Island. We are professional, deadline oriented, and knowledgeable in all areas of surveying. Alpha Associates, Ltd., is a full-servic