CornerStone Custom Builders
CornerStone Custom Builders Inc., founded in 1996 and based in Eagle River, is a private custom home construction and design firm employing 11–50 people and offering Epitome Quality Foundation Walls as a proprietary building component to residential clients.
- Company typePrivate
- Founded1996
- HeadquartersEagle River, United States
- Headcount11–50
- GTM typeB2C
- OfferingServices
What CornerStone Custom Builders does
CornerStone Custom Builders Inc. is a privately held, for-profit custom home construction and design firm founded in 1996 and headquartered in Eagle River, United States. The company delivers custom residential construction services and offers Epitome Quality Foundation Walls as a proprietary product component, suggesting vertical integration into a foundational building element rather than reliance solely on third-party foundation systems.
The firm operates with a small headcount of 11–50 employees under founder and president Glenn Schiffmann, consistent with a boutique or mid-scale regional builder rather than a national production homebuilder. Business operations are conducted through the company's website (cornerstonecustombuilders.com), though accessible content from that source was limited at the time of data collection.
The company's revenue mechanics were not disclosed in the available source data; no pricing model, contract structure, customer segments, or geographic scope beyond the Eagle River base could be confirmed. As a custom home builder, the implied business model is project-based, where each engagement represents a discrete, high-value residential contract typically structured as cost-plus or fixed-price construction. The 28-year operating history under continuous founder leadership is the primary indicator of business durability, though no growth, headcount trend, or backlog signals are available to assess current trajectory.
CornerStone Custom Builders firmographics
Firmographics- Name
- CornerStone Custom Builders
- Website
- https://cornerstonecustombuilders.com
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- CornerStone Custom Builders Inc., founded in 1996 and based in Eagle River, is a private custom home construction and design firm employing 11–50 people and offering Epitome Quality Foundation Walls as a proprietary building component to residential clients.
- Ownership category
- akta.pro rank
CornerStone Custom Builders industry classification
Industry- Product category
- Residential Construction Services
- NAICS
- New Single-Family Housing Construction (except For-Sale Builders) (236115), Residential Building Construction (23611)
- SIC
- General Bldg Contractors - Residential Bldgs (1520), Operative Builders (1531)
- akta.pro primary industry
- Custom Home Building (IMAFABAC)
- akta.pro secondary industries
- Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Structural Expansion (Foundation, Framing & Load-Bearing Modifications) (HSAPADAN)
Keywords
Where CornerStone Custom Builders is headquartered
LocationHeadquarters
- HQ city
- Eagle River
- HQ country
- United States
- HQ region
- North America
Markets served
CornerStone Custom Builders business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Marketing or Sales, Others
CornerStone Custom Builders product offering
Product offeringCore offering
CornerStone Custom Builders Inc. is a residential construction firm that designs and builds custom homes for individual homeowners. The company offers turnkey custom home construction services and features a proprietary foundation wall product branded as Epitome Quality Foundation Walls. The firm operates from Eagle River, Wisconsin and has been in business since 1996.
Differentiator
Problem solved
Functional benefit
Products and services
- Custom Home Construction End-to-end custom home building service for individual homeowners seeking a personalized residence, including design, construction, and finishing.
- Custom Home Design Services Architectural design services for clients commissioning a custom home, typically integrated with the construction package.
- Epitome Quality Foundation Walls Proprietary foundation wall system branded as Epitome Quality Foundation Walls, used in the construction of custom homes built by the company.
Companies that use CornerStone Custom Builders
Customer profileIdeal customer profiles1 record
CornerStone Custom Builders technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
CornerStone Custom Builders competitors and assessment
Company assessmentRegional players
- Tim O'Brien Homes: Wisconsin-based design-build custom home builder operating in the greater Milwaukee/southeast WI market. Comparable as a WI-anchored design-build firm with similar project scope, though larger and more metro-focused.
- Halron Homes: Wisconsin-based custom home builder with design-build capabilities serving northern Wisconsin lake-home markets. Closely comparable in scale, design-build model, and target customer (premium lake-home buyer).
- Mike Foale Builder: Wisconsin-based custom home builder serving the Northwoods region around Eagle River/Minocqua. Directly comparable as a similarly sized, founder-led regional custom home builder in the same local market.
Broad incumbents
- Toll Brothers: National luxury home builder with broad custom and move-up offerings. Useful benchmark for premium custom positioning and for valuation reference, though far larger and publicly traded.
- David Weekley Homes: Large national home builder with a meaningful custom/semi-custom offering. Comparable as a broader incumbent in residential custom/built-to-order construction.
Direct peers
- DeYoung Custom Builders: Custom home builder delivering design-build residences in Midwest markets. Comparable in custom home focus and integrated design-build delivery.
- Visbeen Construction: Midwest-based custom home builder delivering design-build luxury residences, including lake and waterfront projects. Comparable in design-build model and premium custom segment.
- Neumann Custom Builders: Custom home builder with design-build capabilities serving upper Midwest lake/premium-home markets. Closely comparable in operating model (design + build) and target segment.
- Bielinski Builders: Wisconsin-based home builder offering design-build custom homes in multiple WI markets. Closely comparable as a custom home builder in the same state with integrated design-build offerings.
- Sharper Homes: Wisconsin-based custom home builder focused on quality single-family homes in select WI communities. Comparable custom home builder in the same state at similar scale.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat2 records
Key risks5 records
Key highlights5 records
Customer concentration
CornerStone Custom Builders social profiles
Digital presenceCornerStone Custom Builders financial estimates
Financial estimateRevenue estimate
Valuation estimate
CornerStone Custom Builders leadership team
Management profileNumber of profiles
Profiles1 record
CornerStone Custom Builders funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CornerStone Custom Builders 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 CornerStone Custom Builders
What does CornerStone Custom Builders do?
CornerStone Custom Builders Inc. is a residential construction firm that designs and builds custom homes for individual homeowners. The company offers turnkey custom home construction services and features a proprietary foundation wall product branded as Epitome Quality Foundation Walls. The firm operates from Eagle River, Wisconsin and has been in business since 1996.
When was CornerStone Custom Builders founded?
CornerStone Custom Builders was founded in 1996. It employs 11 to 50 people.
Where is CornerStone Custom Builders based?
CornerStone Custom Builders is headquartered in Eagle River, United States, in the North America region.
Who are CornerStone Custom Builders's main competitors?
Regional players on record are Tim O'Brien Homes, Halron Homes and Mike Foale Builder. Broad incumbents are Toll Brothers and David Weekley Homes. Direct peers are DeYoung Custom Builders, Visbeen Construction, Neumann Custom Builders, Bielinski Builders and Sharper Homes.
Does CornerStone Custom Builders have an API?
No public API is recorded for CornerStone Custom Builders.
What industry is CornerStone Custom Builders in?
CornerStone Custom Builders's product category is Residential Construction Services. Its primary akta.pro industry code is IMAFABAC, Custom Home Building, with a secondary code of IMAFABAE, Residential Design-Build & Renovation-Integrated Builders. Its NAICS code is 236115 and its SIC code is 1520.