ISEC
ISEC is a 100% employee-owned specialty construction contractor delivering interior finish and trade services — woodwork, ceilings, glass, medical equipment, lab furniture, and metals — to commercial, healthcare, aviation, and science & technology owners and general contractors across North America.
- Company typePrivate
- Founded1967
- HeadquartersGreenwood Village, United States
- Headcount1,001–5,000
- GTM typeB2B
- OfferingServices
What ISEC does
ISEC, Inc. is a privately held, 100% employee-owned specialty construction contractor founded in 1967 in Denver, Colorado and headquartered in Greenwood Village. The company delivers interior finish and specialty trade services across nine core solution areas — architectural woodwork, ceilings, door/frame/hardware, general construction, glass and glazing, medical equipment, metals, science furniture and equipment, and specialties — serving aviation, healthcare, education, entertainment, government, hospitality, science and technology, and commercial end markets through 25+ regional offices in North America. Marquee owners and general contractor partners include Meta, Google, Delta Air Lines, Sutter Health, Houston Methodist, Virginia Tech, Johns Hopkins, Clark Construction, Hensel Phelps, DPR Construction, McCarthy, Gilbane, and Skanska.
ISEC differentiates through a digital construction technology stack comprising Virtual Design and Construction (BIM on 300+ projects), laser-scanning reality capture (125+ projects), Trimble precision tooling (100+ projects), AR/VR visualization, 3D-printed prototypes, and 360-degree site documentation, combined with self-performed labor (700+ field craft professionals) and a global manufacturing partner network that supplies architectural woodwork, laboratory furniture, doors/frames/hardware, and specialty items. The firm operates 48 specialty contractor licenses in 29 states, holds $224M+ in assets, and maintains a 0.79 Total Recordable Incident Rate (60% below industry average), a 20-year ENR Top 100 ranking, and LEED credentials across 428 projects.
ISEC's commercial model is project-based specialty contracting delivered through two go-to-market motions: (i) subcontracting for general contractors on large-scale construction projects with active contracts exceeding $1.9B, and (ii) a fast-growing Direct-to-Owner segment covering life sciences, healthcare, and hospitality projects. The company reached a $500M revenue goal in 2023, completed more than $10B of contracts over its lifetime, and formalized its ESOP structure in 2024 to lock in employee ownership across 600+ employee owners under the Vision 2030 growth plan.
ISEC firmographics
Firmographics- Name
- ISEC
- Legal name
- ISEC, Inc.
- Website
- https://isecinc.com
- Company type
- Private
- Founded year
- 1967
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- ISEC is a 100% employee-owned specialty construction contractor delivering interior finish and trade services — woodwork, ceilings, glass, medical equipment, lab furniture, and metals — to commercial, healthcare, aviation, and science & technology owners and general contractors across North America.
- Ownership category
- akta.pro rank
ISEC industry classification
Industry- Product category
- Specialty Construction Contracting
- NAICS
- Other Building Finishing Contractors (23839)
- akta.pro primary industry
- Joinery, Millwork & Casework Installation (Cabinetry, Built-Ins) (IMAFANAJ)
Keywords
Where ISEC is headquartered
LocationHeadquarters
- HQ city
- Greenwood Village
- HQ country
- United States
- HQ region
- North America
Offices11 records
Markets served
ISEC business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Construction Specialty Contracting: ISEC generates revenue as a specialty contractor providing interior finish solutions including architectural woodwork, ceilings, doors/frames/hardware, glass/glazing, medical equipment, metals, science furniture, and specialties. Revenue comes from projects with general contractors and direct to owners/developers.
- Design Build and Design Assist Services: Revenue from design-build and design-assist projects where ISEC provides design collaboration and delivery services alongside construction execution. $200M+ in active Design Build and Design Assist projects.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Multi-year contract | Project-based construction services pricing |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
ISEC product offering
Product offeringCore offering
ISEC is a specialty construction subcontractor delivering interior finish solutions across nine core service areas: Architectural Woodwork, Ceilings, Door/Frame/Hardware, General Construction, Glass and Glazing, Medical Equipment, Metals, Science Furniture & Equipment, and Specialties. Services are delivered on large-scale commercial projects through Design Build, Design Assist, and traditional subcontracting methods, leveraging Virtual Design and Construction (VDC), BIM, self-performed labor, and a global manufacturing partner network.
Product overview
ISEC is a construction subcontractor offering a comprehensive portfolio of specialty trade services organized around nine core service areas: Architectural Woodwork, Ceilings, Door/Frame/Hardware, General Construction, Glass and Glazing, Medical Equipment, Metals, Science Furniture & Equipment, and Specialties. These services are delivered through multiple project delivery methods including Design Build, Design Assist, and traditional subcontracting. ISEC differentiates itself through Virtual Design and Construction (VDC) technology, global sourcing capabilities, and self-performed labor. The company operates across ten U.S. regions serving market sectors including Aviation/Transportation, Commercial, Education, Entertainment, Government, Healthcare, High Rise Residential, Hospitality, and Science & Technology.
Differentiator
Problem solved
Functional benefit
Products and services
- Architectural Woodwork
- Ceilings
- Door, Frame, and Hardware
- General Construction
- Glass and Glazing
- Medical Equipment
- Metals
- Science Furniture & Equipment
- Specialties
- Design Build and Design Assist
Quantifiable outcome
- 90% of business from repeat clients
- +4 more outcomes
Companies that use ISEC
Customer profileNamed customers13 records
Segments9 records
Ideal customer profiles3 records
ISEC technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
ISEC partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered flagship and core.
- Kewaunee Scientific CorporationflagshipFounded in 1906, Kewaunee Scientific Corporation is a recognized global leader in designing, manufacturing, and installing laboratory, healthcare, and technical furniture products including steel and wood casework, fume hoods, adaptable modular systems, moveable workstations, biological safety cabinets, and epoxy resin work surfaces. ISEC partnership covers 14+ states with Kewaunee serving as #1 in all Science and Technology markets and largest laboratory furniture manufacturer in the U.S.
- S&S LLCcoreFounded in 1976, S&S LLC is a full-service door, frame, and hardware distributor located in El Segundo, California. Provides 3 generations of experience, 28 DHI certified staff, design build experts, specification writing, and global sourcing partnerships with leading door, frame, and hardware manufacturers.
- TMi Systems CorporationcoreTMi Systems Corporation has provided Premium and Custom Grade laminate casework, architectural woodwork, and countertop products to institutional markets for over 50 years. Partnership spans 50+ years with 10,000+ projects completed. 100% Employee Owned with 100,000+ sq. ft. of manufacturing space.
- MAY SOFTECHcoreFounded in 2007, MAY SOFTECH is an Information Technology Engineering Services firm headquartered in Chennai, India, specializing in Engineering, BIM, IT, and preconstruction services. 300,000+ engineering and VDC/BIM hours completed across 5,000+ projects. Partnership spans 14 years providing AR/VR/VDC services and preconstruction support.
Scale indicators14 records
Recent moves13 records
Expansion highlights6 records
ISEC competitors and assessment
Company assessmentDirect peers
- MYR Group: Publicly-traded specialty electrical construction services provider serving commercial, industrial, and utility clients across the US; directly comparable as a publicly traded specialty subcontractor serving similar institutional customers.
- Limbach Holdings: Public specialty mechanical, electrical, and plumbing contractor that emphasizes design-build delivery and VDC/BIM-driven prefabrication; highly comparable to ISEC in specialty focus, technology-enabled delivery, and owner-direct growth strategy.
- IES Holdings: National specialty contractor delivering electrical, communications, and infrastructure solutions for commercial, industrial, and data center customers with similar project-based revenue and design-build execution model.
- Comfort Systems USA: National mechanical and electrical specialty contractor serving institutional and commercial customers across similar end-markets; highly comparable in project-based specialty delivery and multi-region operating model.
- BrandSafway: Large specialty services provider delivering scaffolding, access, insulation, and coatings to industrial and infrastructure customers; comparable in enterprise-scale specialty services delivery and large-project execution.
- Cleveland Construction: National interior construction, architectural millwork, and specialty finishes contractor with overlapping scope in casework, doors/frames/hardware, and custom interiors; the most direct private competitor to ISEC's millwork and casework core.
- APi Group: Publicly-traded specialty services conglomerate providing safety, specialty, and industrial services across North America with strong recurring institutional exposure; comparable in multi-trade specialty scale and acquisition-driven growth playbook.
- EMCOR Group: Largest publicly-traded US specialty contractor offering mechanical, electrical, and building services nationwide with similar design-build delivery and institutional/commercial customer base; the closest scaled public comparable for ISEC's multi-trade specialty model.
Broad incumbents
- Sterling Infrastructure: Diversified specialty construction services company with e-infrastructure, transportation, and building solutions segments; comparable institutional customer footprint and project execution model though more infrastructure-oriented.
- Tutor Perini: Large publicly-traded diversified general contractor with significant design-build and specialty work in healthcare, commercial, and transportation; overlaps in institutional end-markets but operates at significantly broader scope than ISEC.
Market position
Strengths6 records
Weaknesses6 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
ISEC social profiles
Digital presenceISEC compliance and trust
Trust signalCompliance5 records
ISEC financial estimates
Financial estimateRevenue estimate
Valuation estimate
ISEC leadership team
Management profileNumber of profiles
Profiles13 records
ISEC funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ISEC M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ISEC
What does ISEC do?
ISEC is a specialty construction subcontractor delivering interior finish solutions across nine core service areas: Architectural Woodwork, Ceilings, Door/Frame/Hardware, General Construction, Glass and Glazing, Medical Equipment, Metals, Science Furniture & Equipment, and Specialties. Services are delivered on large-scale commercial projects through Design Build, Design Assist, and traditional subcontracting methods, leveraging Virtual Design and Construction (VDC), BIM, self-performed labor, and a global manufacturing partner network.
Is ISEC a public or private company?
ISEC is a private company. It is classified as management employee owned and is currently operating.
When was ISEC founded?
ISEC was founded in 1967. It employs 1,001 to 5,000 people.
Where is ISEC based?
ISEC is headquartered in Greenwood Village, United States, in the North America region.
How does ISEC make money?
Two revenue lines are on record. Construction Specialty Contracting is the primary driver. The others are design Build and Design Assist Services.
Who are ISEC's main competitors?
Direct peers on record are MYR Group, Limbach Holdings, IES Holdings, Comfort Systems USA, BrandSafway, Cleveland Construction, APi Group and EMCOR Group. Broad incumbents are Sterling Infrastructure and Tutor Perini.
Does ISEC have an API?
No public API is recorded for ISEC.
What industry is ISEC in?
ISEC's product category is Specialty Construction Contracting. Its primary akta.pro industry code is IMAFANAJ, Joinery, Millwork & Casework Installation (Cabinetry, Built-Ins). Its NAICS code is 23839.