How a 60-year-old Ohio rubber shop walked away from its biggest customer — and landed a $2.1M aerospace contract

When Marcus took over the family rubber gasket and sealing shop from his father in early 2024, the business had been losing ground for three straight years. Revenue had dropped from $8.4M to $6.2M. Gross margin had compressed from 18% to 9%. Two tier-2 automotive suppliers made up 58% of the book, and both had started rebidding their contracts against Chinese manufacturers quoting 22–28% below Ohio's landed cost.

Marcus's father wanted to sell. Most of the 45 employees had been there over a decade. The shop had no website worth mentioning, no marketing function, and no one under 35 except the two newest hires. Marcus spent his first six months patching leaks — paying overtime to hit deliveries, chasing receivables, deferring a crumbling $400K in capex. He knew the business needed a different answer, but every conversation with his father ended the same way: "We make rubber parts. That's what we do." He ran a SWOT analysis more out of desperation than faith, expecting to confirm what he already suspected.

The SWOT pushed Marcus toward a decision he had been circling without articulating: stop fighting for automotive commodity work and rebuild the business around aerospace and defense small-batch specialty seals. He committed to three concrete moves over 90 days. First, he invested $340K to pursue AS9100 certification and replace the two oldest presses with automated equivalents — paid in cash, no debt. Second, he hired a part-time aerospace business development consultant (a former Lockheed supply chain manager, 6 hours a week) to open conversations with regional DoD primes and Tier-1 aerospace suppliers. Third, he gave his largest automotive customer 12 months' notice that pricing on the contract would reset to restore a 14% gross margin floor — expecting, correctly, that they would walk. He and his father agreed that if the new direction didn't produce a signed aerospace PO within 12 months, they would sell.

Fourteen months later, the shop had signed its first AS9100 audit with zero findings, landed a $2.1M three-year contract with a regional DoD prime for specialty elastomer seals on aerial refueling systems, and added a second $480K annual run with a commercial aerospace Tier-1. The auto customer walked as expected, but the revenue gap closed in nine months instead of the 12 Marcus had budgeted for. Overall revenue was up 18% YoY ($7.3M), gross margin had recovered to 16%, and the shop had added six jobs — including two apprentices sponsored through a local community college partnership. Marcus's father, who had wanted to sell a year earlier, asked to stay on part-time to mentor the aerospace tooling work.