TransDigm offers unmatched pricing power through its portfolio of sole-source aerospace components, translating into exceptional EBITDA margins and 20% equity IRR targets. However, its $31 billion net debt load and 5.8x net leverage ratio create balance sheet risk during industry shocks. Recent DOJ blockages of its $960 million Stellant Systems acquisition highlight growing regulatory headwinds for its M&A strategy.

TransDigm represents the gold standard of the niche aerospace component roll-up model, having compounded share value at 22% annually for nearly two decades. Its regulatory-protected aftermarket business serves as the exact playbook and inspiration for Perimeter Solutions' capital allocation framework.