DOTHAN, ALA. (November 6, 2020) – DSI Security Services, a national leader in the security solutions industry for more than 50 years, is proud to announce that Doug Blake has been promoted to regional sales director. The 30-year veteran of security sales and business development will oversee Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Kansas, Missouri and Iowa.

“Doug has demonstrated an extremely high-caliber level of sales leadership for us,” said Marty Clark, president of DSI Security Services. “His ability to understand and serve the needs of the client while adeptly navigating industry verticals and steering projects throughout the sales cycle quickly put him on the path to promotion. That day, a great one for DSI, has come.” 

Blake had served as business development manager for DSI since February 2019, handling sales across Texas. Prior to that, he held leadership roles, including vice president of national sales, at U.S. Security Associates for 13 years. Blake also held security regional sales director and district manager positions at Day & Zimmermann.

“I’m very happy to have this opportunity and grow along with DSI, an industry leader that does things the right way,” said Blake. “When you combine the company’s focus, fundamentals and resources, DSI’s not only a great place to work, it’s also a special organization that allows its people the best chance to succeed.”

DSI’s dependability and continued coast-to-coast growth, including Blake’s eight-state region, stem from its DWYSYWD motto — Do What You Say You Will Do — reflecting its strong commitment to clients to promise and deliver service superiority. DSI delivers daily on its core belief in relationship building, quality assurance and partnering for success. 

About DSI Security Services

Established in Dothan, AL, in 1969 by Sheriff A.B. Clark, DSI Security provides uniformed and electronic security, as well as consulting services, to a wide range of industries. Led by Alan Clark (A.B.’s son) and wife Marty, the family-owned and operated company delivers comprehensive and award-winning security solutions based on its DWYSYWD motto — Do What You Say You Will Do — reflecting its strong commitment to clients to promise and deliver service superiority. Our security solutions include armed and unarmed officers, mobile patrol, reception services, valet services and console operations. The WBENC-certified (Women’s Business Enterprise National Council) firm enters its sixth decade with more than 4,000 security personnel across the United States. For more information, please visit