How to Select Comparable Companies for Your Benchmarking Study

Why Comparable Company Selection Matters

The comparable company search is the backbone of any transfer pricing benchmarking study. The companies you select as comparables directly determine the arm’s length range — and by extension, whether your intercompany pricing will be considered compliant by tax authorities.

A well-executed comparable search demonstrates that your transfer pricing is consistent with what independent parties achieve under similar circumstances. A poorly executed search creates vulnerabilities that tax authorities will exploit during audits.

Step-by-Step: The Comparable Company Selection Process

Step 1: Define the Tested Party Profile

Before searching for comparables, you need a clear picture of the entity you’re benchmarking. This starts with a functional analysis:

• Functions performed: What does the tested party actually do? (e.g., limited-risk distribution, contract manufacturing, R&D services)
• Assets employed: What tangible and intangible assets does the tested party use or own?
• Risks assumed: What business risks does the tested party bear? (e.g., inventory risk, credit risk, market risk)

The functional profile determines what kind of comparable companies you’re looking for. A limited-risk distributor should be compared to other limited-risk distributors — not to full-fledged entrepreneurs that bear significant market risk.

Step 2: Design the Quantitative Search Strategy

Using a commercial database (such as Orbis, Capital IQ, or Compustat), define your initial search parameters:

Industry Classification

Start with relevant SIC codes or NACE codes that match the tested party’s industry. Cast a reasonably wide net — you can narrow down through qualitative screening later.

Geographic Scope

Select the appropriate geography. For US tested parties, start with US-headquartered companies. For European tested parties, a pan-European search is often appropriate.

Independence Criteria

Exclude companies that are subsidiaries of larger groups (typically using an independence indicator like BvD independence indicator A or B). Related-party transactions in comparable companies would undermine the arm’s length comparison.

Size Filters

Consider applying revenue thresholds to ensure comparables are reasonably similar in scale. However, avoid overly restrictive size filters that eliminate otherwise good comparables.

Data Availability

Require a minimum number of years of available financial data (typically 3–5 years) to calculate reliable profitability indicators.

Step 3: Apply Qualitative Screening

The quantitative search produces a long list of candidates. Now apply qualitative screening to each company:

Functional Comparability

Review each company’s business description, annual report, and website. Ask:

• Does this company perform similar functions to the tested party?
• Does it employ similar assets and assume similar risks?
• Is its business model comparable in terms of value chain positioning?

Reject Companies With Distorting Factors

Remove companies that exhibit factors making their financial results unreliable as comparables:

Step 4: Document the Search Process

Documentation is as important as the analysis itself. For every company reviewed, record:

• The company name and database identifier
• Whether it was accepted or rejected
• The specific reason for acceptance or rejection
• The source of information used to make the determination

This rejection log (sometimes called a “rejection matrix”) is one of the first things tax authorities review during an audit. Thorough, consistent documentation demonstrates that your search was objective and systematic.

Step 5: Calculate Financial Indicators

For the accepted comparable companies, calculate the relevant profit level indicators over a multi-year period (typically 3–5 years):

• Operating margin: Operating profit / Revenue
• Net cost plus margin: Operating profit / Total operating costs
• Berry ratio: Gross profit / Operating expenses
• Return on assets: Operating profit / Total operating assets

The choice of PLI depends on the tested party’s function:

Step 6: Establish the Arm’s Length Range

Calculate the interquartile range (25th to 75th percentile) of the comparable companies’ profit level indicators. This range represents the arm’s length benchmark:

• If the tested party’s result falls within the interquartile range → the pricing is considered arm’s length
• If the tested party’s result falls outside the range → an adjustment may be warranted (in the US, typically to the median)

Best Practices for Defensible Comparable Selections

1. Be consistent: Apply the same screening criteria to all candidates. Don’t cherry-pick comparables to achieve a desired result.

2. Document rejections thoroughly: A well-documented rejection is better than an undocumented acceptance.

3. Use multiple years of data: Single-year results can be volatile. Multi-year averages or weighted averages improve reliability.

4. Consider comparability adjustments: Where appropriate, apply working capital adjustments or other quantitative adjustments to improve comparability.

5. Update annually: Economic conditions change. Refresh your comparable set each year to reflect current market conditions.

6. Keep the process reproducible: Another analyst should be able to follow your search strategy and arrive at a substantially similar set of comparables.

How CompPress Simplifies Comparable Company Selection

CompPress takes the complexity out of comparable company searches. Our reports provide pre-screened comparable companies based on rigorous methodology, complete with financial data, screening documentation, and interquartile range calculations — ready for inclusion in your transfer pricing documentation.

Get a CompPress report →