Stories Behind the Wealth

Stories Behind the Wealth


Building Spartan Shield: Lessons in Leadership, GovCon, and Growth with Jack Longanacre (Ep. 3)

October 21, 2025

From late nights fueled by Red Bull to building a 50+ person team, Jack Longanacre’s journey proves that growth is never a straight line.

In this episode, Gaffar Chowdhury, CAP®, sits down with Jack Longanacre, CPA, CGFM, MPA, President and CEO of Spartan Shield Solutions, to explore how a veteran’s discipline, a CPA’s precision, and an entrepreneur’s grit combined to create one of the fastest-growing outsourced CFO firms in the GovCon space.

Gaffar and Jack discuss:

  • Why grassroots companies shouldn’t copy Silicon Valley playbooks too early
  • The challenges of staffing and scaling in a specialized financial services firm
  • How government spending shifts and AI are reshaping GovCon
  • The lessons Jack carried from military service, mentorship, and early career experiences
  • And more!

Connect with Gaffar Chowdhury:

Connect with Jack Longanacre:

About Our Guest: 

Jack Longanacre is the President & CEO of Spartan Shield Solutions, a veteran-owned fractional CFO and outsourced accounting firm headquartered in Arlington, Virginia. With nearly two decades of experience in GovCon and accounting, Jack leads a 50+ person team helping companies nationwide navigate finance, compliance, and growth. A former military servicemember and CPA firm leader, he has guided Spartan Shield to three consecutive appearances on the Inc. 5000 list of fastest-growing companies.

The views and opinions expressed are those of the program participants and are not necessarily those of MML Investors Services LLC. The material is not intended as recommendations appropriate for you. You should strongly consider seeking advice from your own investment specialist.

Gaffar Chowdhury is a registered representative of and offers securities through MML Investors Services, LLC. Member SIPC. OSJ 530 Gaither Road, Suite 350, Rockville, MD 20850 (301) 355-5800.

District Wealth Strategies is not a subsidiary or affiliate of MML Investors Services, LLC.

CRN#: CRN202809-9611024