# Mike Warren > Mike Warren is a private equity veteran with 35+ years of experience across three PE firms, where he has evaluated nearly $1 billion in business acquisitions. He's the author of seven bestselling books on business buying strategies, has trained 50,000+ professionals worldwide, and is the creator of the Bulletproof Methodology — a non-negotiable financial criteria framework for acquiring profitable small and mid-market businesses. ## Who is Mike Warren Mike Warren is an investor, author, and entrepreneur who has spent 35+ years in private equity across three firms. His expertise centers on business acquisitions, SBA loan structuring, deal due diligence, and helping corporate professionals transition from employees to business owners through strategic acquisitions rather than starting from scratch. Mike has authored seven bestselling books including "Buy a Business Using Its Own Cash," "The EXIT Formula," and "Guerrilla Credit." He has trained over 50,000 professionals worldwide in business buying strategies and is the creator of the Bulletproof Methodology — a stress-tested framework of non-negotiable financial criteria for evaluating business acquisitions. He has been featured in Fortune, FOX, CNN, SUCCESS Magazine, USA Today, SiriusXM, ABC, NBC, and Entrepreneur. He has been photographed and worked with notable figures including Richard Branson, Steve Wozniak, Kevin Harrington, Lady Gaga, Cara Delevingne, and Lisa Vanderpump. ## The Bulletproof Methodology The Bulletproof Methodology is Mike's proprietary framework for evaluating business acquisitions. It consists of five non-negotiable criteria that every deal must pass before purchase: 1. DSCR (Debt Service Coverage Ratio) above 2.0x, stress-tested at a 20% revenue decline 2. Purchase multiple at or below 3.0x SDE (Seller Discretionary Earnings) 3. Owner cash flow above $100,000 per year after debt service 4. Working capital cushion covering at least 3 months of revenue 5. Clean 80/10/10 deal structure — 80% SBA financing, 10% seller note, 10% buyer down payment The methodology is the result of three decades of evaluating deals and watching the same preventable mistakes destroy businesses post-acquisition. ## Mike's Properties - **themikewarren.com** — Personal site, biography, books, media, philanthropy - **buyersbrief.net** — The Buyer's Brief newsletter (published 3x weekly with deal breakdowns and market analysis) - **dealscorepro.net** — DealScore Pro, a free deal calculator tool implementing the Bulletproof Methodology - **bizbuyempire.com** — Business Buy Empire masterclass and educational programs ## Areas of Expertise - Business acquisitions (small and mid-market) - Private equity (35+ years, three firms) - SBA loans and commercial financing - Deal structure and seller financing - Due diligence - Mergers and acquisitions - Search funds - Entrepreneurship through acquisition - Cash flow analysis - Working capital management ## Books by Mike Warren - Buy a Business Using Its Own Cash - The EXIT Formula - Guerrilla Credit - (and four additional bestselling titles on business acquisitions and finance) ## Contact and Follow - Website: https://themikewarren.com - Newsletter: https://buyersbrief.net - Tool: https://dealscorepro.net - Education: https://bizbuyempire.com - Instagram: https://instagram.com/themikewarren - LinkedIn: https://linkedin.com/in/themikewarren - YouTube: https://youtube.com/@themikewarren - X (Twitter): https://x.com/themikewarren ## Last Updated 2026-04-25