Jungsten Construction
Privately-held California general contractor founded in 1987, specializing in sustainable, contemporary residential construction—new builds, remodels, and additions—for high-net-worth property owners across the Bay Area, including Marin and Sonoma counties.
- Company typePrivate
- Founded1987
- HeadquartersMill Valley, United States
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Jungsten Construction does
Jungsten Construction is a privately-held California general contracting firm founded in 1987 and headquartered at 65 Mitchell Blvd, Suite 100, San Rafael, California (License #549463). The company specializes in sustainable, contemporary residential construction — new builds, full remodels, and additions — serving high-net-worth property owners across the California Bay Area, with primary concentration in Marin County, Sonoma County, and surrounding regions including Healdsburg, Belvedere, Tiburon, Mill Valley, Ross, Kentfield, Sausalito, and (more recently) Menlo Park. Its portfolio, with 20+ documented completed projects, spans vineyard estates, Mediterranean villas, modern and contemporary homes, craftsman-style residences, and a Mill Valley church.
The service offering is organized into three lines: (1) Design Development and Preconstruction Services, including feasibility assessment and pre-construction planning; (2) Sustainability Planning/Integration, applying green building principles across all project types from simple additions to full remodels, covering siting, material sourcing, engineering for durability, and craft execution; and (3) Service and Maintenance, providing ongoing post-completion support under multi-year contracts. The company is led by President Jeff Jungsten, an Advanced Certified Green Building Professional with 38+ years of construction experience who serves as the first point of contact for clients. Senior team includes Director Lori Eaton, Service Manager Pete Nargiz, and dedicated project managers and site superintendents such as Tom Goodale and Matt Lombardi.
The business model is project-based, generating revenue through fixed-price or cost-plus contracts for individual residential projects; pricing is custom and quote-based per scope. Customer acquisition is purely direct, relying on referrals, professional reputation, and industry recognition rather than paid marketing. The firm has accumulated recurring features in Better Homes & Gardens, Coastal Living, Custom Home Magazine, Remodeling Magazine, and Marin Magazine, and has won Remodeling Magazine's Big 50 honor twice (2004 and 2012/2013). The headcount sits in the 11–50 range and no external investors, parent entity, or institutional ownership has been disclosed.
Jungsten Construction firmographics
Firmographics- Name
- Jungsten Construction
- Legal name
- Jungsten Construction
- Website
- https://jungsten.com
- Company type
- Private
- Founded year
- 1987
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Privately-held California general contractor founded in 1987, specializing in sustainable, contemporary residential construction—new builds, remodels, and additions—for high-net-worth property owners across the Bay Area, including Marin and Sonoma counties.
- Ownership category
- akta.pro rank
Jungsten Construction industry classification
Industry- Product category
- Luxury Residential Construction Services
- NAICS
- New Single-Family Housing Construction (except For-Sale Builders) (236115), Residential Remodelers (236118)
- SIC
- General Bldg Contractors - Residential Bldgs (1520)
- akta.pro primary industry
- Residential General Contracting (New Build) (IMAFAAAB)
- akta.pro secondary industries
- Renovation, Remodeling & Tenant Improvements (General Contracting) (IMAFAAAE), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)
Keywords
Where Jungsten Construction is headquartered
LocationHeadquarters
- HQ city
- Mill Valley
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Jungsten Construction business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- General Contracting Services: Project-based construction services as a licensed general contractor in California. Revenue is generated through fixed-price contracts or cost-plus arrangements for residential construction projects, including new construction, remodels, and additions. The company also offers ongoing service and maintenance contracts.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-specific custom pricing |
Go-to-market motion1 record
Distribution channels1 record
Jungsten Construction product offering
Product offeringCore offering
Jungsten Construction is a licensed California general contractor that builds, remodels, and maintains high-end custom residential properties. The firm sells project-based construction services for new homes, full remodels, and additions, with a documented focus on sustainable and contemporary residential construction across the San Francisco Bay Area (Marin County, Sonoma County, and surrounding regions). It also offers preconstruction planning, green building consulting, and ongoing service and maintenance contracts.
Product overview
Jungsten Construction is a California-based general contractor founded in 1987, offering sustainable construction and remodeling services. The company operates as a client-centric service provider offering three core services: Design Development and Preconstruction Services (project planning and feasibility assessment), Sustainability Planning/Integration (green building consulting and eco-friendly material integration), and Service and Maintenance (ongoing maintenance support for completed projects). The company serves residential clients in the California Bay Area, with a portfolio of 20 completed projects including modern homes, vineyard estates, and Mediterranean-style residences.
Differentiator
Problem solved
Functional benefit
Products and services
- Design Development and Preconstruction Services Preconstruction planning services that help clients with project design development, feasibility assessment, and planning before construction begins. Intended for high-net-worth residential property owners in the California Bay Area considering new construction, remodels, or additions.
- Sustainability Planning / Integration Green building consulting services that integrate sustainable practices and eco-friendly materials into construction projects, applying principles of green building (siting, material sourcing, engineering for durability, and craft skill) to all project types from simple additions to full remodels. For residential clients in the Bay Area.
- Service and Maintenance Ongoing maintenance and service support for completed projects, including a comprehensive maintenance checklist covering exterior, interior, mechanical systems, and seasonal maintenance tasks. Aimed at owners of luxury residential properties built or remodeled by the firm.
Companies that use Jungsten Construction
Customer profileSegments1 record
Ideal customer profiles1 record
Jungsten Construction technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Jungsten Construction partnerships and signals
Strategic signalScale indicators2 records
Recent moves5 records
Expansion highlights4 records
Jungsten Construction competitors and assessment
Company assessmentMarket position
Strengths4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Jungsten Construction social profiles
Digital presenceJungsten Construction financial estimates
Financial estimateRevenue estimate
Valuation estimate
Jungsten Construction leadership team
Management profileNumber of profiles
Profiles5 records
Jungsten Construction funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Jungsten Construction 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 Jungsten Construction
What does Jungsten Construction do?
Jungsten Construction is a licensed California general contractor that builds, remodels, and maintains high-end custom residential properties. The firm sells project-based construction services for new homes, full remodels, and additions, with a documented focus on sustainable and contemporary residential construction across the San Francisco Bay Area (Marin County, Sonoma County, and surrounding regions). It also offers preconstruction planning, green building consulting, and ongoing service and maintenance contracts.
Is Jungsten Construction a public or private company?
Jungsten Construction is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Jungsten Construction founded?
Jungsten Construction was founded in 1987. It employs 11 to 50 people.
Where is Jungsten Construction based?
Jungsten Construction is headquartered in Mill Valley, United States, in the North America region.
How does Jungsten Construction make money?
One revenue line is on record: general Contracting Services.
Does Jungsten Construction have an API?
No public API is recorded for Jungsten Construction.
What industry is Jungsten Construction in?
Jungsten Construction's product category is Luxury Residential Construction Services. Its primary akta.pro industry code is IMAFAAAB, Residential General Contracting (New Build), with a secondary code of IMAFAAAE, Renovation, Remodeling & Tenant Improvements (General Contracting). Its NAICS code is 236115 and its SIC code is 1520.