Selling an Architecture Firm in 2026: Multiples, Named Buyers, and the Practice Sale Playbook
Quick Answer
A US architecture firm in 2026 typically sells for roughly 3x to 9x EBITDA, with the multiple varying significantly by market sector specialty (healthcare, education, government/civic, corporate, residential, hospitality), backlog quality, and platform scale. By profile: a single-office firm at $500k-1.5M EBITDA goes 3x-5x EBITDA; a small multi-office firm with diversified market sectors ($1.5-4M EBITDA) goes 4x-6x EBITDA; a regional firm with named specialty practice (healthcare, K-12 / higher-ed, federal) at $4-10M EBITDA goes 5x-7x EBITDA; a premium scale platform ($10M+ EBITDA, multi-state, specialty practice, named institutional client base) reaches 6x-9x+ EBITDA. The architecture M&A market is materially thinner than engineering — many large architecture firms (Perkins&Will, HKS, HDR, Gensler, SOM) are ESOP-owned or partnership-structured and are not active acquirers. The active buyer pool includes Stantec (TSX/NYSE: STN, multi-discipline AEC with architecture practice), Arcadis (EPA: ARCAD, Dutch public, owns CallisonRTKL), Page (private/ESOP, selective M&A), HKS (private, selective), HDR (ESOP, primarily organic), LRK, Niles Bolton, Cooper Carry, plus PE-backed AEC platforms with architecture practices (Sterling-backed, Stonepeak Infrastructure Partners portfolio). The biggest multiple drivers are market sector specialty mix (healthcare, K-12/higher-ed, federal/government, science/lab, mission-critical/data center premium to commercial), backlog and pipeline, named institutional client base, multi-state architecture registration, and design-award/recognition reputation. Buyer-paid M&A advisory (CT Strategic Partners) costs the seller nothing.
If you own an architecture firm in 2026, the M&A market is materially thinner than engineering. Many large architecture firms (Perkins&Will, HKS, HDR, Gensler, SOM) are ESOP-owned or partnership-structured and do not pursue acquisitions. The active buyer pool is concentrated among multi-discipline AEC firms with architecture practices (Stantec, Arcadis via CallisonRTKL) and selective specialty acquirers (Page, HKS for specific specialty transactions, regional firms). PE-backed AEC platforms with architecture practices (Sterling-backed, Stonepeak portfolio) are emerging acquirers.
What the asset is worth depends on three things: (1) market sector specialty (healthcare, K-12/higher-ed, federal/government, science/lab, mission-critical/data center premium to commercial/residential), (2) backlog quality and named institutional client base, and (3) multi-state architecture registration and design-award reputation. This guide covers real multiples by profile, the named buyers transacting, and the operator-level diligence buyers will run.
This guide is about architecture firms (design practices). For engineering firms (civil, transportation, water/wastewater, environmental, structural, MEP), see our separate guide at how to sell an engineering firm.
What this guide covers
- Architecture firm multiples 2026: 3x-5x EBITDA for single-office, 4x-6x for small multi-office diversified, 5x-7x for regional firms with specialty practice, 6x-9x+ for premium scale platforms with named specialty and institutional client base.
- Active buyers: Stantec (TSX: STN / NYSE: STN, multi-discipline AEC with architecture practice), Arcadis (EPA: ARCAD, owns CallisonRTKL), Page (private/ESOP, selective), HKS (private, selective), plus PE-backed AEC platforms with architecture practices.
- Note: Many large US architecture firms (Perkins&Will, HKS, HDR, Gensler, SOM) are ESOP-owned or partnership-structured and are NOT active acquirers. The buyer pool is thinner than engineering.
- PE sponsor activity: The Sterling Group, Stonepeak Infrastructure Partners, plus AEC-focused PE funds backing multi-discipline platforms with architecture practices.
- Multiple drivers: market sector specialty (healthcare, K-12/higher-ed, federal, science/lab, mission-critical premium to commercial/residential), backlog quality, named institutional client base, multi-state architecture registration, design-award reputation.
- Things that compress the multiple: commercial-only or residential-only concentration, owner-architect dependence, single-client concentration, single-state architecture registration, weak backlog visibility, professional liability claim history, undocumented contract types.
- Sellers pay nothing on CT Strategic Partners’ buyer-paid advisory.
Named architecture firm M&A transactions (2021-2025)
| Target | Buyer | Year | What it tells us |
|---|---|---|---|
| Multiple Stantec architecture tuck-ins | Stantec (TSX: STN / NYSE: STN) | 2022-2025 | Multi-discipline AEC continues architecture practice tuck-ins as part of broader M&A. |
| Arcadis architecture acquisitions | Arcadis NV (EPA: ARCAD) | 2022-2025 | Dutch public continues selective architecture/design acquisitions via CallisonRTKL and other practices. |
| Page selective tuck-ins | Page (private/ESOP) | 2022-2025 | Multi-disciplinary architecture/engineering firm continues selective M&A. |
| HKS specialty acquisitions | HKS (private) | 2023-2025 | Healthcare and sports specialty architecture firm continues selective M&A in those specialties. |
| PE-backed architecture-practice tuck-ins | Multiple PE platforms | 2023-2025 | PE-backed multi-discipline AEC platforms continue architecture practice add-ons. |
The named buyer landscape
Multi-discipline AEC strategic acquirers
- Stantec (TSX: STN / NYSE: STN) — multi-discipline AEC with architecture practice; continues geographic tuck-ins.
- Arcadis NV (EPA: ARCAD) — Dutch public AEC; owns CallisonRTKL and other architecture practices.
- WSP Global (TSX: WSP) — Canadian AEC; selective architecture M&A.
- AECOM (NYSE: ACM) — selective M&A.
Specialty / private architecture firms (selective acquirers)
- Page (private/ESOP) — multi-disciplinary architecture/engineering, selective acquirer.
- HKS (private) — healthcare and sports specialty; selective in those specialties.
- NBBJ, SmithGroup, HOK — selective specialty acquirers.
ESOP-owned firms (typically NOT acquirers)
- Perkins&Will, HDR, Gensler, SOM (Skidmore, Owings & Merrill), HOK, Cannon Design — many large US architecture firms are ESOP-owned or partnership-structured. They are typically focused on organic growth and partner equity, not M&A acquisitions of other firms.
PE-backed AEC platforms
- PE-backed AEC platforms with architecture practices continue selective tuck-ins. Ardurra, Verdantas (Sterling Group), Salas O’Brien have architecture and design practices.
PE sponsors active in this space
- The Sterling Group, Stonepeak Infrastructure Partners, AEA Investors, plus multiple AEC-focused PE funds.
What each buyer will pay for vs. what they reject
- Will pay premium for: healthcare specialty practice (hospital design, MOB design, MICA design), K-12 / higher-ed specialty, federal / government / civic specialty, science / lab specialty (laboratory design is a specialty premium), mission-critical / data center specialty, named institutional client base with recurring engagements (universities, health systems, federal agencies), multi-state architecture registration, design-award reputation (AIA Honor Awards, COTE Top Ten, etc.), strong backlog and pipeline visibility, multi-discipline integration (architecture + engineering + interiors).
- Will compress or reject: commercial-only or residential-only concentration, owner-architect dependence, single-client concentration above 20%, single-state architecture registration, weak backlog visibility, repeated professional liability claims, undocumented partner/principal equity arrangements, weak succession (founder/principal near retirement without bench).
The operator-level KPI playbook buyers will diligence
Market sector and specialty
- Market sector mix: Healthcare %, K-12/higher-ed %, federal/government %, commercial %, residential %, hospitality %, science/lab %, mission-critical/data center %.
- Specialty practice: Named specialty exposure (healthcare hospital, K-12, federal, science/lab, mission-critical) commands premium.
- Institutional client base: Recurring engagements with health systems, universities, federal agencies.
Backlog and pipeline
- Backlog: 12-18 months forward visibility.
- Win rate: RFP win rate by client type.
- Pipeline: Pursued opportunities, weighted.
- Customer concentration: No single client above 20%.
Professional registration
- Registered architect count by state: Multi-state registration is a multiple-builder.
- NCARB-certified architects: National reciprocity.
- Specialty certifications: LEED AP, WELL AP, Living Building Challenge, EDAC (healthcare), CDT (construction documents).
Project and financial KPIs
- Utilization: Billable hours / available hours; 65-75% is healthy for architecture.
- Realization: Billed vs. budgeted by project.
- Net multiplier: Net revenue / direct labor cost; 2.8-3.2 is healthy for architecture.
- Project margin: Track by project, by service line.
- Days in AR: <75 days is healthy.
Reputation and recognition
- Design awards: AIA Honor Awards, AIA National Awards, COTE Top Ten, ENR Top Design Firm rankings.
- Published work: Architectural Record, Architect Magazine, etc.
- Industry leadership: AIA Fellows on staff, ACSA leadership.
Risk and insurance
- Professional liability claim history: 5-year history.
- Insurance coverage limits.
- Project risk-management protocols.
Dangers and traps in architecture firm M&A
1. Commercial-only or residential-only concentration
Premium multiples require specialty practice exposure (healthcare, K-12/higher-ed, federal, science/lab, mission-critical).
2. Owner-architect dependence
If the founding principal is the named design lead on all major clients, build the partner/principal bench before sale.
3. Thin buyer pool
Architecture M&A buyer pool is materially thinner than engineering. Many large firms (Perkins&Will, HKS, HDR, Gensler) are ESOP-owned and not acquirers.
4. Single-state architecture registration
Multi-state NCARB-certified registration is a multiple-builder.
5. Backlog and pipeline gaps
12-18 months forward visibility is the benchmark.
6. Professional liability claim history
Construction defect claims, design errors, project disputes — document fully.
7. Partner/principal equity structure complexity
Document partner equity, redemption arrangements, deferred compensation, ESOP structures. These structures can complicate transaction mechanics.
8. Project-cost-overrun history
Track project margins; chronic overruns raise quality questions.
Our POV on architecture firm M&A in 2026
- Single-office firms ($500k-1.5M EBITDA) go 3x-5x EBITDA. Thin buyer pool.
- Small multi-office diversified firms ($1.5-4M EBITDA) go 4x-6x EBITDA.
- Regional firms with specialty practice ($4-10M EBITDA) go 5x-7x EBITDA.
- Premium scale platforms ($10M+ EBITDA, multi-state, specialty practice, named institutional client base) reach 6x-9x+.
The architecture M&A buyer pool is materially thinner than engineering. Consider whether an ESOP transition or partnership recap is more appropriate than an outright sale. The right time to prepare is 12-18 months before going to market — build specialty exposure, lock in institutional client base, expand multi-state registration, build the principal bench.
Preparing your architecture firm for sale: 12-18 months out
- Get multi-year audited or reviewed financials. Track revenue by market sector, client, project.
- Build specialty practice exposure. Healthcare, K-12/higher-ed, federal, science/lab, mission-critical.
- Lock in institutional client base. Recurring engagements with health systems, universities, federal agencies.
- Document backlog and pipeline. 12-18 months forward.
- Expand multi-state architecture registration.
- Build the partner/principal bench. Reduce founder/principal dependence.
- Resolve professional liability matters.
- Document partner equity and ESOP structure if applicable.
- Run a competitive process. Stantec, Arcadis, Page, HKS, plus PE-backed AEC platforms (Sterling Group, Stonepeak portfolio). Also evaluate ESOP transition or partnership recap as alternatives.
Free, No Email Required
Get a personalized valuation in 90 seconds
Answer six quick questions and we’ll give you a sector-adjusted EBITDA multiple range plus the specific factors driving your number up or down.
Open the Valuation Tool →The five pillars of how CT Acquisitions works
Buyer pays our fee. Founders never write a check.
No engagement letter. No upfront cost. No exclusivity contract.
Search funders, family offices, lower-middle-market PE, strategics.
Confidential introductions to the right buyers. No bidding war.
Not 9-12 months. Not 18 months. Months, not years.
No Pitch · No Pressure
Ready to start a confidential conversation?
Tell us about your business. We’ll tell you what it’s likely worth, whether we have qualified buyers in our network, and what the next 60-120 days could look like. No engagement letter. No retainer. Walk at any time.
Start a Confidential Conversation →Frequently asked questions
What is the typical multiple for an architecture firm in 2026?
Single-office firms ($500k-1.5M EBITDA) typically sell at 3x-5x EBITDA. Small multi-office diversified firms ($1.5-4M EBITDA) go 4x-6x. Regional firms with named specialty practice (healthcare, K-12/higher-ed, federal, science/lab) at $4-10M EBITDA go 5x-7x. Premium scale platforms ($10M+ EBITDA, multi-state, specialty practice, named institutional client base) reach 6x-9x+. Architecture multiples are materially lower than engineering due to thinner buyer pool.
Who are the active buyers of architecture firms right now?
Multi-discipline AEC strategic acquirers: Stantec (TSX: STN / NYSE: STN), Arcadis NV (EPA: ARCAD, owns CallisonRTKL), WSP Global (TSX: WSP), AECOM (NYSE: ACM). Specialty/private architecture acquirers: Page (private/ESOP), HKS (private, healthcare and sports specialty), NBBJ, SmithGroup, HOK. PE-backed AEC platforms with architecture practices. Note: Perkins&Will, HDR, Gensler, SOM, HOK, Cannon Design are ESOP-owned or partnership-structured and are typically NOT acquirers.
Why is the architecture M&A buyer pool thinner than engineering?
Many large US architecture firms (Perkins&Will, HKS, HDR, Gensler, SOM) are ESOP-owned or partnership-structured and pursue organic growth rather than acquisitions. Architecture firm valuations also depend heavily on principal-architect personalities and design reputations, which are harder to acquire. Engineering firms have a more developed M&A market with active public consolidators (Stantec, Tetra Tech, NV5, Bowman) and PE-backed platforms.
What hurts an architecture firm’s valuation most?
Commercial-only or residential-only concentration, owner-architect dependence with weak succession bench, single-client concentration above 20%, single-state architecture registration, weak backlog visibility, repeated professional liability claims, complex partner/principal equity arrangements, and project-cost-overrun history.
What specialty practices command premiums?
Healthcare (hospital, MOB, MICA), K-12 / higher-ed, federal / government / civic, science / lab, mission-critical / data center. Each requires specific expertise, regulatory knowledge, and client relationships that are hard to replicate.
Should I consider an ESOP transition instead of a sale?
Yes, evaluate it. Many large US architecture firms (Perkins&Will, HDR, HOK, Cannon Design) operate as ESOPs. ESOP structures allow founder-principals to monetize gradually, maintain firm independence, and create employee ownership. Tax benefits can be significant. For founder-principal firms without an obvious strategic acquirer, ESOP is often more financially attractive than an outright sale. A partnership recap (PE-backed) is also worth evaluating.
Do I have to pay a broker fee?
No. CT Strategic Partners runs a buyer-paid M&A advisory model. The seller pays nothing. The buyer pays the success fee at closing.
How long does it take to sell an architecture firm?
Once you go to market with a buyer-paid advisor, a typical process runs 6-10 months from initial outreach to closing. The thinner buyer pool extends the timeline relative to engineering. Add 12-18 months of preparation work before going to market.
When should I start preparing if I plan to sell in 2027 or 2028?
12-18 months before going to market is the right window. Highest-leverage pre-sale work: build specialty practice exposure, lock in institutional client base, expand multi-state architecture registration, build the principal bench, evaluate ESOP transition as alternative.
Related research
- How to sell an engineering firm
- Which industries is PE buying most in 2026
- Private equity value creation
- Business broker alternative
- Sell your business (overview)
- How to sell an environmental services company
- How to sell a water treatment business
- How to sell a solar installation business
- Strategic buyer vs financial buyer
- Equity rollover: founders keep skin in the game
About the Author
Christoph Totter is the founder of CT Acquisitions, a buy-side partner headquartered in Sheridan, Wyoming. We work directly with 76+ buyers, search funders, family offices, lower middle-market PE, and strategic consolidators, including direct mandates with the largest home services consolidators that other intermediaries can’t access. The buyers pay us when a deal closes, not the seller. No retainer, no exclusivity, no contract until close. Connect on LinkedIn · Get in touch