# Defining acquisition costacquisition costCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → when your buyer is a hospital committee
A sales rep for a surgical robotics company spends 14 months courting a single 600-bed hospital. She trains surgeons on a demo unit, answers 40 procurement questions on sterilization workflow, and presents three times to the Value Analysis Committee (VAC), the internal panel that decides whether a device earns a spot on the hospital's approved purchasing list. Marketing ran two conference booths, a webinar series, and a peer-reviewed reprint campaign to support her.
Then the deal closes. What did that customer actually cost to acquire? If you answer with a consumer-marketing formula, you will be wrong by a wide margin.
Customer Acquisition CostCustomer Acquisition CostCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → (CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →) is the total sales and marketing spend needed to win one new customer, over a defined period, divided by the number of customers won.
$$CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → = \frac{\text{Sales spend} + \text{Marketing spend}}{\text{New customers acquired}}$$
In SaaS or e-commerce, the buyer is often one person and the cycle is days or weeks. In medtech and biotech, three things blow that model up:
So your CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → must span the full cycle and count every function that touched the account.
Start by defining the cohort window to match the sales cycle, not the fiscal quarter. If your average cycle is 18 months, measure spend across an 18-month window aligned to when those deals started.
Include these cost buckets:
1. Field sales: salaries, commissions, travel, demo unit depreciation, clinical specialists who support trials.
2. Marketing: congress booths, symposia, KOL (Key Opinion Leader, an influential physician) engagement, reprints, webinars, digital.
3. Health economics and outcomes research (HEOR) content built specifically to win VAC approval. This is a real marketing cost in medtech, not R&D.
4. Sales enablement: the collateral, ROIROIReturn on Investment: the ratio of net profit to the cost of an investment. A 300% ROI means each dollar invested returns $3.View full definition → calculators, and clinical evidence dossiers reps carry into committees.
Exclude: manufacturing, ongoing service, and post-sale clinical training (that belongs to retention and cost to serve, not acquisition).
Imagine a mid-size orthopedic implant company selling into US hospitals. Over an 18-month cohort:
| Cost bucket | Spend (18 mo) |
|---|---|
| Field sales (fully loaded) | $4,200,000 |
| Congresses and KOL programs | $900,000 |
| HEOR and VAC dossiers | $600,000 |
| Digital and enablement | $300,000 |
| Total | $6,000,000 |
New hospital accounts won in the cohort: 40.
$$CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → = \frac{6{,}000{,}000}{40} = \$150{,}000 \text{ per hospital account}$$
That number feels huge next to a $50 e-commerce CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →. It is only meaningful next to the account's lifetime valuelifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition →.
Lifetime ValueLifetime ValueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → (LTVLTVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition →) is the total gross profit a customer generates over the relationship. A $150,000 CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → is excellent if that hospital buys implants worth millions over ten years, and alarming if they run one trial and churn.
The standard health check is the LTV:CAC ratio. A widely cited rule of thumb in B2B is that a ratio around 3:1 or higher is healthy, and below 1:1 means you lose money on every customer. Treat 3:1 as an industry heuristic, not a medtech-specific benchmark, since public medtech-specific figures are scarce and vary by segment.
Simple LTVLTVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → for our implant account:
$$\text{LTVLTVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition →:CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →} = \frac{960{,}000}{150{,}000} = 6.4\text{:}1$$
Strong. The long, expensive cycle is justified by a sticky, high-value account. For a full walk-through of the underlying math, the Corporate Finance Institute CAC primer is a solid free reference.
A blended CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → hides where money is wasted. Break spend down by the three committee stakeholders and ask which touch actually moves deals.
In the US, GPOs like Vizient and Premier gatekeep a large share of hospital purchasing, so a deal can stall even after surgeons say yes. If you find that clinician enthusiasm is high but VAC approval stalls, your HEOR spend is underfunded relative to your KOL spend. That is a marketing allocation problem CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → segmentationsegmentationDividing a market into distinct groups of customers who share similar needs, characteristics or behaviours, so each group can be served with a tailored approach.View full definition → reveals.
🎬 [VIDEO: "How Hospitals Actually Buy Medical Devices" - youtube.com - an overview of value analysis committees and the medtech purchasing chain]
The buyer structure shifts across markets, and so does where your acquisition dollars go.
HTA bodies (such as NICE in England, the body that assesses whether a technology offers value for the health system) act as an evidence gate. In tender-driven markets, your CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → includes the cost of generating the exact economic evidence the assessment demands. Note these are structural descriptions; specific tender win rates and country CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → figures are not reliably published, so avoid quoting invented numbers to committees.
Long cycles make attributionattributionA framework for assigning credit to the touchpoints that contributed to a conversion, so you can measure which channels and interactions actually drive results.View full definition → hard. A congress touch in month 2 may enable a VAC win in month 16. Two practical approaches:
Most medtech teams should start with cohort-based CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → because CRMCRMCustomer Relationship Management: software and strategy to manage and analyse customer interactions throughout their lifecycle.View full definition → hygiene across an 18-month, multi-stakeholder journey is usually poor. A minimal cohort query looks like this:
SELECT
cohort_start_quarter,
SUM(sales_and_marketing_spend) AS total_spend,
COUNT(DISTINCT won_account_id) AS accounts_won,
SUM(sales_and_marketing_spend) / COUNT(DISTINCT won_account_id) AS cac
FROM deal_cohorts
WHERE deal_start_date BETWEEN '2024-07-01' AND '2025-12-31'
GROUP BY cohort_start_quarter;The key discipline: align the spend window to deal_start_date, not close date, so you are not comparing this quarter's spend against last year's wins.
Knowledge check
1. Why does the standard consumer-marketing CAC formula produce misleading results in medtech capital equipment sales?
2. Why does the lesson recommend defining the CAC cohort window to match the sales cycle rather than the fiscal quarter?
3. What is the primary implication of the fact that 'one no kills the deal' among clinicians, procurement, and the VAC?
4. Select ALL correct answers about why a fully loaded CAC in medtech must count multiple functions.
Select all the correct answers.
5. Select ALL correct answers describing characteristics that distinguish medtech customer acquisition from typical SaaS or e-commerce acquisition.
Select all the correct answers.
CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → payback period is how long it takes the customer's gross profit to repay their acquisition costacquisition costCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →.
$$\text{Payback (months)} = \frac{CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →}{\text{Monthly gross profit per account}}$$
For our implant account: monthly gross profit is 120,000 / 12 = $10,000.
$$\text{Payback} = \frac{150{,}000}{10{,}000} = 15 \text{ months}$$
Add the 18-month sales cycle and you have spent roughly 33 months from first touch to breakeven. That is normal in capital medtech and it is why the sector rewards patient capital and penalizes teams that cut marketing spend mid-cycle. If you defund HEOR in month 10 to hit a quarterly target, you kill deals already 60 percent through the funnelfunnelThe customer journey from awareness to purchase, typically Awareness, Interest, Consideration, Decision, Action, with prospects narrowing at each stage.View full definition →.
This is the single most common marketing error in the sector: judging long-cycle CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition → on short-cycle timeframes.