Most PE-backed companies run with limited visibility — rarely from a lack of data, but because the data arrives too late, covers the wrong things, or lives in systems that operate in silos. Monthly board decks fall short of operating intelligence — they're history lessons.
The operating partners who consistently drive EBITDA expansion share one discipline: they know, in near real time, what's happening at each portfolio company. Not what happened last month. What's happening now.
Here are the five KPIs that separate the best PE operating teams from the rest — and why the frequency of the measurement matters as much as the metric itself.
1. EBITDA Run Rate vs. Budget (Weekly)
This is the north star metric, and yet most companies only reconcile it monthly. By the time a monthly miss surfaces in a board report, you've already lost four weeks of corrective runway.
Tracking EBITDA run rate weekly — even directionally — gives operating teams the lead time to intervene before a bad month becomes a bad quarter. The key is simplicity: accounting precision is secondary at the weekly level — what you need is a directional signal. Revenue in, major cost buckets out, trend line.
A 2% EBITDA miss caught in week two is a conversation. The same miss caught at month-end is a problem. At quarter-end, it's a story you're telling your LP.
What to watch: Weekly actuals vs. budget pacing, not just month-to-date. A company that's on plan through week three and falls apart in week four has a different problem than one that trends below plan all month.
2. Gross Margin by Business Line
Consolidated gross margin is a comfort metric. It smooths over the problems. What you need is gross margin by product line, service line, customer segment, or geography — whichever axis is most relevant to your thesis.
In nearly every middle market company we've worked with, margin concentration is extreme: the top 20% of SKUs or service lines generate 80%+ of gross profit, while the bottom 30% are margin-dilutive and nobody is watching them closely enough.
What to watch: Margin expansion or compression at the line level, not the consolidated level. If your overall margin holds while your highest-margin segment shrinks, you have a structural problem hiding behind a clean headline number.
3. Customer Acquisition Cost vs. Lifetime Value Ratio
CAC/LTV is typically treated as a marketing metric. In a PE context, it's a capital efficiency metric. It tells you whether the company's go-to-market motion is creating value or consuming it.
For middle market companies in growth mode, a deteriorating CAC/LTV ratio is one of the earliest signals that a revenue growth story is becoming unsustainable — often 12–18 months before it shows up in EBITDA. For companies in harvest mode, an improving ratio signals operating leverage kicking in.
What to watch: Trend over rolling quarters, not point-in-time. A single quarter of CAC deterioration can be explained. Two consecutive quarters is a go-to-market problem that needs attention at the board level.
4. Working Capital Efficiency (DSO, DPO, Inventory Turns)
Working capital is the most undermanaged lever in middle market PE. Operating partners spend enormous time and energy on EBITDA line items, while hundreds of thousands — sometimes millions — sit locked in inefficient receivables, payables, and inventory cycles.
- Days Sales Outstanding (DSO): Are customers paying faster or slower? A DSO creeping up by 5–10 days is a cash flow problem and often a collections process problem.
- Days Payable Outstanding (DPO): Is the company taking advantage of its payables terms, or leaving cash on the table by paying early?
- Inventory Turns: For product businesses, slow-moving inventory is tied-up capital. High turn rates signal lean operations. Low turns often reveal demand forecasting failures.
What to watch: Changes vs. prior periods, not just absolute levels. A company with a 45-day DSO that's been 45 days for three years is managed. A company where DSO moves from 38 to 47 days over two quarters has a collections or contract problem developing.
5. Revenue per Employee
Revenue per employee (or more precisely, value-add per employee) is a blunt but powerful measure of organizational efficiency. It's particularly useful at acquisition, where you're establishing baselines, and at exit, where it's a due diligence input for buyers.
Most middle market companies have never benchmarked their revenue per employee against industry peers. When they do, the results are often revelatory — not because their number is bad, but because the variation across business units within the same company is unexpectedly large.
What to watch: Segment-level, not just company-wide. A services business where billable utilization is high but revenue per employee is stagnant has a pricing problem. A distribution business where revenue per employee is declining has a volume or headcount scaling issue.
The Frequency Problem
These five metrics are well-known. Most PE operating partners would agree they're important. The gap goes beyond awareness — it comes down to execution frequency.
The companies that compound EBITDA consistently across a hold period share a single discipline: they've built the infrastructure to see these numbers weekly, not monthly. They've built accountability systems that tie the numbers to owners. And they've built escalation protocols that trigger action before a negative trend becomes a negative result.
That's not a consulting engagement. That's an operating platform.