Company Valuation Methods: The Definitive 2026 Guide for Founder-Owned Businesses

Company valuation methods are the technical foundation of every M&A transaction, equity compensation grant, estate plan, divorce settlement, and business sale. Understanding the methods — and which one applies to your specific situation — is the difference between informed decisions and accepting whatever number an interested party puts on the table.

This guide covers all major company valuation methods used in 2026: the three standard approaches (Market, Income, Asset) as recognized by AICPA SSVS-1, ASA, and NACVA professional standards, plus the specific implementation methods used in M&A practice (EBITDA Multiple, SDE Multiple, Revenue Multiple, DCF, Industry Rules of Thumb). For each method, we cover when to use it, what it produces, and how to cross-check the result.

CT Acquisitions runs sell-side M&A processes for founder-owned U.S. businesses ($1M-$25M EBITDA). We use EBITDA Multiple as our primary valuation tool, cross-checked against DCF and recent named-transaction comparables. This guide documents that practice + adjacent methods every founder approaching a sale, recap, or estate plan should understand.

The 3 Standard Valuation Approaches (AICPA SSVS-1)

Professional valuation standards (AICPA Statement on Standards for Valuation Services, SSVS-1; ASA Business Valuation Standards; NACVA Statement on Standards for Certified Business Valuers) all recognize three standard approaches:

1. Market Approach

Uses observable transactions in the market to value the subject business:

• Guideline Public Company Method (GPCM): Identify 3-7 publicly traded companies in the same sector with similar size, growth, and profitability. Apply their multiples (EV/EBITDA, EV/Revenue, P/E) to the subject. Apply public-to-private discount (typically 20-30%) and size-based adjustments.
• Guideline Transaction Method: Identify recent M&A transactions in the sector. Apply transaction multiples. Data sources: Mergermarket, S&P Capital IQ, PitchBook, Capstone Partners industry reports, GF Data Reports, Pepperdine Private Capital Markets annual report.

Best for: Established businesses with clear public/transaction comparables.

2. Income Approach

Values the business at the present value of expected future cash flows. Standard implementation: discounted cash flow (DCF):

• Free Cash Flow projections: 5-10 years of FCF (after-tax operating profit + depreciation – capex – change in working capital).
• Terminal Value: Calculated at end of forecast period using exit multiple method (preferred in M&A practice) or perpetuity growth method (Gordon Growth Model).
• WACC (Weighted Average Cost of Capital): Discount rate. Range for private companies: 10-25% depending on stage, leverage, and size premium.
• Present Value calculation: Sum of discounted FCF + discounted terminal value.

Best for: Stable businesses with predictable cash flows. Most methodologically defensible but very sensitive to WACC and terminal value assumptions.

3. Asset Approach

Values the business at the sum of its tangible and intangible assets minus liabilities:

• Book Value: Balance sheet equity (assets – liabilities).
• Adjusted Book Value: Book value with assets and liabilities marked to fair market value.
• Liquidation Value: What assets would yield in a forced sale (typically 50-70% of fair market value).

Best for: Asset-heavy businesses (real estate, manufacturing equipment), pre-revenue startups, distressed businesses, holding companies. Not appropriate for most operating profitable businesses.

M&A Practice Methods: EBITDA, SDE, Revenue Multiples

EBITDA Multiple (the M&A standard for $1M+ EBITDA businesses)

The dominant valuation method in lower middle market M&A practice. Formula:

Enterprise Value = Normalized EBITDA × Sector Multiple

“Normalized” means adjusted for owner compensation, one-time items, related-party transactions, and any other expenses that wouldn’t recur post-sale. Buyers conduct Quality of Earnings (QoE) review to validate.

2026 EBITDA Multiple ranges by sector

Sector	Typical Range	Premium Drivers
HVAC residential/commercial	5-10x (PE platforms 10-18x)	Recurring service contracts, multi-state, scale
Plumbing/electrical	4-9x	Commercial mix, RMR, geographic reach
Manufacturing	4-8x (specialty 6-12x)	Specialty, IP, customer diversification
Professional services	5-12x (RIA 7-15x)	Recurring revenue, low founder dependence
Healthcare services	6-15x	FDA-regulated, recurring revenue, payer diversification
Dental DSO	8-15x	Geographic concentration, recurring patient base
Veterinary	12-20x	PE roll-up dynamics (Mars Petcare, JAB)
Distribution / wholesale	4-9x	Customer/supplier diversification
SaaS	12-40x	Growth, NRR, gross margin

SDE Multiple (the small-business standard)

For sub-$1M EBITDA businesses where founder is essential to operations:

• SDE = Net Income + Owner Salary + Owner Benefits + Owner Perks + One-time Expenses + Interest + Depreciation + Amortization + Taxes.
• Captures total economic benefit to owner-operator.
• Typical 2026 SDE ranges (per IBBA Market Pulse Q4 2025, BizBuySell Insight Report): HVAC 3-5x, plumbing 2.5-4.5x, restaurants 1.5-3x, e-commerce 1-2.5x.

Revenue Multiple (SaaS + pre-profit standard)

For businesses where EBITDA is negative, near-zero, or distorted:

• SaaS: EV/ARR. Typical 3-15x depending on growth rate, gross margin, NRR.
• Biotech/pharma services: 1-5x revenue.
• Tech-enabled services: 1-4x revenue.

See our full revenue multiple guide.

DCF Method: Step-by-Step

The DCF (Discounted Cash Flow) is the most methodologically defensible valuation method and the workhorse of corporate finance. The 5-step process:

Step 1: Project Free Cash Flows (5-10 year explicit forecast)

FCF = EBITDA – Taxes – Capital Expenditures – Change in Working Capital

• Years 1-5: Detailed bottom-up projections (revenue by segment, COGS by line, opex by category).
• Years 6-10: Smoother trajectory toward steady state.
• Sanity check: long-term growth rate should converge to GDP growth (~2-3%) by end of forecast.

Step 2: Calculate Terminal Value

Terminal Value (TV) captures all cash flows beyond the forecast horizon. Two methods:

• Exit Multiple Method (preferred in M&A): TV = EBITDA(year N) × Exit Multiple. Exit multiple calibrated to sector transaction comparables.
• Perpetuity Growth Method (Gordon Growth): TV = FCF(year N+1) / (WACC – g). Where g = long-term growth (typically 2-3%).

Step 3: Calculate WACC (Weighted Average Cost of Capital)

WACC = (Equity / Total Capital) × Cost of Equity + (Debt / Total Capital) × Cost of Debt × (1 – Tax Rate)

• Cost of Equity: CAPM = Risk-Free Rate + Beta × Equity Risk Premium + Size Premium.
• Cost of Debt: Marginal borrowing rate × (1 – tax shield).
• Private company WACC typically: 10-25% depending on stage and leverage.

Step 4: Discount Cash Flows to Present

PV = Sum of FCF(t) / (1 + WACC)^t + TV / (1 + WACC)^N

Step 5: Reconcile to Enterprise Value and Equity Value

• Enterprise Value = PV from DCF.
• Equity Value = Enterprise Value – Net Debt (debt minus cash).
• Per-share value = Equity Value / Diluted Shares Outstanding.

Sensitivity analysis

DCF is very sensitive to WACC and terminal value assumptions. Always run sensitivity tables: WACC ±2%, terminal exit multiple ±1 turn, revenue growth ±5%. Report value as a range, not a point estimate.

Cross-checking valuations: triangulation

Best-practice valuations triangulate multiple methods to validate the result. Standard M&A practice:

Primary: EBITDA Multiple (transaction-comp-based)

• Identify 5+ recent transactions in your sector at similar size/growth.
• Apply median multiple ± premium/discount adjustments.
• Result: Range A.

Secondary: DCF (income approach)

• Build 5-10 year FCF projection.
• Calculate terminal value (exit multiple + perpetuity growth as sanity check).
• Discount at appropriate WACC.
• Result: Range B.

Tertiary: Guideline Public Companies (market approach)

• Identify 5+ public companies in your sector.
• Apply their EV/EBITDA × 0.7-0.8 (public-to-private discount).
• Result: Range C.

Convergence test

If A, B, C all fall within ±15% of each other, your valuation is well-supported. If they diverge by >25%, investigate which method is unreliable for your specific situation (e.g., DCF may be unreliable for early-stage; market approach may be unreliable if no good comps).

The actual transaction multiple

Ultimately, value is what someone will pay. Theoretical methods set the negotiation range; the actual buyer pool and competitive dynamics determine the final number. This is why running a competitive sell-side process (rather than negotiating with a single buyer) typically yields 10-25% higher values than the theoretical median.

FAQ: Company valuation methods

What are the main methods to value a company?

Three standard approaches per AICPA/ASA/NACVA: Market Approach (comparable public + precedent transactions), Income Approach (DCF), Asset Approach (NAV). In M&A practice, these translate to EBITDA Multiple, SDE Multiple, Revenue Multiple, DCF, and Industry Rules of Thumb.

Which valuation method is most accurate?

DCF is most methodologically defensible but most sensitive to assumptions. EBITDA Multiple (based on transaction comparables) is most reflective of actual market clearing prices. Best practice: triangulate both, plus market approach.

How do I calculate EV/EBITDA?

EV = Equity Value + Net Debt – Cash. EBITDA = Earnings Before Interest, Taxes, Depreciation, Amortization. EV/EBITDA = EV / EBITDA. For private companies: normalize EBITDA for owner comp, one-time items, related-party transactions.

What is a DCF?

Discounted Cash Flow: 5-step process — project FCF for 5-10 years, calculate terminal value, calculate WACC, discount cash flows to present, reconcile to equity value. Most defensible methodologically.

What is WACC?

Weighted Average Cost of Capital. WACC = (Equity/Total) × Cost of Equity + (Debt/Total) × Cost of Debt × (1-Tax Rate). Discount rate for DCF. Private company WACC typically 10-25%.

What is the difference between EBITDA Multiple and SDE Multiple?

EBITDA Multiple is the M&A standard for $1M+ businesses where owner is replaceable. SDE Multiple is the small-business standard for sub-$1M businesses where owner is essential. SDE includes owner compensation; EBITDA does not.

When do I use Asset Approach?

Asset-heavy businesses (real estate, manufacturing equipment), pre-revenue startups with no FCF to discount, distressed businesses, holding companies. Not appropriate for operating profitable businesses where Income or Market approaches produce higher (and more accurate) values.

How do I cross-check a valuation?

Triangulate three methods: (1) EBITDA Multiple from transaction comps, (2) DCF, (3) GPCM (Guideline Public Companies × 0.7-0.8 discount). If all three fall within ±15%, valuation is well-supported. If they diverge >25%, investigate which method is unreliable for your specific situation.

What does CT Acquisitions use?

For $1M-$25M EBITDA founder-owned businesses: EBITDA Multiple as primary method (transaction-comp-based), cross-checked with DCF and recent named-transaction comparables in the sector. Provided at no cost as part of our buyer-paid M&A advisory pre-engagement diligence.

How accurate are industry rules of thumb?

Useful for quick estimates (per-bed for healthcare, per-AUM for RIA, per-rooftop for HVAC) but should always be cross-checked with EBITDA or revenue multiples. Rules of thumb miss critical drivers like growth, customer concentration, and recurring revenue percentage.

Related resources from CT Acquisitions

• Types of business valuation
• Revenue multiple valuation
• Exit multiple in DCF and acquisition
• 409A valuation methods
• SDE vs EBITDA business valuation
• SDE multiplier by industry
• Difference between SDE and EBITDA
• Private equity in HVAC 2026