What Gsi Builders Inc does

GSI Builders, Inc. is a Latino-owned, family-operated general contractor headquartered in Portland, Oregon, that delivers pre-construction, general contracting, and project management services across multifamily, commercial, tenant improvement, and public works categories for clients primarily in Oregon and Washington. The company operates from a single office at 1750 SW Skyline Blvd #105, Portland, OR 97221 and holds contractor licenses in both Oregon (CCB #223463) and Washington (CCB #GSIBUB1810KO), along with State of Oregon Minority Business Enterprise (MBE #12728) and Emerging Small Business (ESB) certifications that unlock preferential access to MWESB-targeted public procurement. Its service portfolio is organized around two integrated pillars: pre-construction (feasibility review, budgeting, scheduling, site and neighborhood impact analysis, constructability reviews, and collaborative team formation) and project management (weekly team meetings, subcontractor buyouts, schedule and cost control via construction management software, quality control, and inspection coordination). A subcontractor portal and pre-qualification system formalize trade-partner engagement.

The company generates revenue through fixed-price construction contracts and professional services fees. Project scope spans market-rate multifamily, affordable and supportive housing (e.g., $24M Jade Apartments and the 54-unit Heartwood Commons Aloha conversion), tenant improvements (C-Tran Admin Building, Washington State Patrol DNA Lab, Verizon Labs, Wisdom Ridge Academy, multiple Lake Oswego financial services offices), and community facilities. Notable technical differentiators include sustainable building practices such as on-site solar generation, battery backup, heat-pump water heating, and efficient HVAC; structured constructability review methodology; and multi-source public funding orchestration (Portland Housing Bureau, Metro TOD, Banner Bank, state/county programs).

The go-to-market is sales-led and field-based: projects are secured through formal competitive bidding on public RFPs, direct developer relationships in affordable housing, and community-driven referrals. The customer base is concentrated in government, housing authorities, community development corporations, and small-to-mid commercial enterprises. Ownership rests with the García Seabold family (President Alex C. García Seabold, Vice-President/Secretary Stephen C. Seabold, Owner Lina García Seabold), with no external venture capital, private equity, or institutional investment; the firm is bootstrapped and independently operated. GSI Builders leverages regulatory certifications, MBE/ESB status, and 40+ years of Pacific Northwest experience as its primary competitive position.

Name

Gsi Builders Inc

Legal name

GSI Builders, Inc.

Website

https://gsibuildersinc.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

GSI Builders, Inc. is a Latino-owned, family-operated Portland-based general contractor delivering pre-construction, construction management, and tenant improvement services for affordable housing, multifamily, commercial, and public works clients across Oregon and Washington, leveraging Oregon MBE/ESB certifications and 40+ years of Pacific Northwest experience.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

New Multifamily Housing Construction (except For-Sale Builders) (236116), Industrial Building Construction (23621)

SIC

General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540), Operative Builders (1531)

akta.pro primary industry

Residential General Contracting (New Build) (IMAFAAAB)

akta.pro secondary industry

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

Keywords

• General contracting services
• Pre-construction planning
• Construction project management
• Affordable housing construction
• Commercial tenant improvements

Headquarters

HQ city

Portland

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Others

Revenue model

1. General Construction Services: Revenue generated through construction project contracts including new construction, tenant improvements, and public works projects. Projects range from small tenant improvements to large-scale affordable housing developments like the $24 million Jade Apartments.
2. Pre-Construction Services: Fees from providing pre-construction planning services including feasibility reviews, budgeting, team coordination, scheduling, and constructability analysis before ground breaks.
3. Project Management Services: Ongoing project management services during construction including weekly meetings, subcontractor coordination, cost tracking, quality control, and inspection management.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

GSI Builders, Inc. is a Latino-owned, MBE-certified general contractor based in Portland, Oregon, providing pre-construction planning, construction management, and general contracting services. The company specializes in affordable housing, multifamily residential, commercial tenant improvements, industrial conversions, and public works projects across Oregon and Washington. Services span from feasibility reviews, budgeting, and constructability analysis through full project execution, subcontractor coordination, and closeout.

Product overview

GSI Builders Inc is a construction company offering a unified suite of construction services organized around two core pillars: Pre-Construction Services and Project Management. Pre-Construction Services encompasses planning, feasibility analysis, budgeting, site analysis, constructability reviews, and collaborative team formation conducted before ground is broken. Project Management covers full-service construction management including schedule monitoring, cost control, quality control, inspection coordination, and post-construction support. The company also provides a Subcontractor Portal for bid management. These services are delivered as an integrated offering rather than standalone modules, with pre-construction services feeding directly into project management execution. The company specializes in market rate multifamily housing, affordable housing, senior housing, tenant improvements, and public works projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Pre-Construction Services Early-stage planning services for project owners and developers including team alignment, feasibility reviews, budgeting, scheduling, site analysis, and constructability reviews before construction begins.
• Project Management Services Full-service construction project management including weekly team meetings, subcontractor buyouts, schedule monitoring, cost control, quality control, inspection coordination, and project closeout support for owners and developers.
• Subcontractor Bid Portal Online portal where trade partners can access project bid opportunities, project information, and submit pre-qualification forms for subcontractor engagement on GSI Builders projects.
• Constructability Review Services Detailed analysis of project plans, drawings, and specifications to identify and address potential issues before construction begins, including design coordination and value engineering for project owners.
• Construction Budget Development and Forecasting Preliminary construction budgeting services that evolve with the project, including cost scenario testing, material alternatives evaluation, and market condition factoring for owners and developers.
• General Construction Services General contracting for new construction, tenant improvements, affordable housing developments, and public works projects including apartments, commercial buildings, civic facilities, and adaptive reuse conversions.

Quantifiable outcome

• Delivered 54-unit permanent supportive housing conversion project (Heartwood Commons) for Housing Authority of Washington County
• +2 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and major.

• Portland Housing BureaucoreStrategic or Co-development Partner · 1 November 2024Government funding partner for the $24 million Jade Apartments affordable housing development. Provides affordable housing bond funding and administers housing programs essential to project viability.
• Hacienda CDCcoreStrategic or Co-development Partner · 1 December 2022Community development corporation partner on Verizon Labs project - a collaboration providing technology opportunities for students in underserved neighborhoods in North Portland through POIC, PCC, and Hacienda-Cully locations.
• VerizoncoreStrategic or Co-development Partner · 1 December 2022Corporate technology partner on Verizon Labs project providing technology and learning opportunities for students in underserved neighborhoods in partnership with Hacienda CDC and Hearts of America.
• Hearts of AmericamajorStrategic or Co-development Partner · 1 December 2022Nonprofit partner in the Verizon Labs project collaboration providing community support and resources for underserved neighborhoods in North Portland.
• POIC (Portland Opportunities Industrialization Center)coreStrategic or Co-development Partner · 1 December 2022One of three partner locations for Verizon Labs project - an education and workforce development organization providing technology learning opportunities for students in underserved neighborhoods.
• PCC (Portland Community College)coreStrategic or Co-development Partner · 1 December 2022One of three partner locations for Verizon Labs project - community college providing educational facilities and technology learning opportunities for students in underserved neighborhoods.
• Housing Authority of Washington CountycoreStrategic or Co-development PartnerLong-term community partner on affordable housing projects including the Heartwood Commons Aloha project converting a hotel into 54 units of permanent supportive housing for Washington County residents.
• Virginia Garcia Memorial Health CentercoreStrategic or Co-development PartnerCommunity health partner providing essential health services including COVID-19 testing and vaccination in Washington and Yamhill Counties. GSI Builders is a proud supporter of this organization.
• C-TranmajorStrategic or Co-development PartnerRegional transit authority for Clark County, Washington. GSI Builders completed the C-Tran Admin Building Board Room tenant improvement project in Vancouver, WA.
• Washington State PatrolmajorStrategic or Co-development PartnerState law enforcement agency. GSI Builders completed the WSP DNA Laboratory tenant improvement - Crime Lab build-out for Washington State Patrol in Vancouver, WA.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Walsh Construction: Family-owned commercial general contractor with a Pacific Northwest presence focused on multifamily, affordable housing, and public-sector projects. Closely comparable to GSI's ownership profile and mission orientation, though at considerably larger scale.
• Howard S. Wright (a Balfour Beatty company): Long-established Pacific Northwest general contractor now part of Balfour Beatty, covering multifamily, commercial, healthcare, and public projects. Comparable to GSI's regional GC offering but operating at substantially larger scale and capital base.
• Turner Construction: National general contractor with a Portland presence undertaking large multifamily, commercial, and public works projects. Comparable to GSI in project categories but operates as a much larger incumbent with broader resources.
• Skanska: Global construction and development firm with a Pacific Northwest presence in commercial and public infrastructure. Comparable in project types but materially larger scale and capacity than GSI.

Regional players

• LMC Construction: Pacific Northwest-based general contractor focused on multifamily, senior living, and commercial projects. Comparable to GSI's multifamily and tenant improvement focus, with a similar regional footprint and project size range.

Direct peers

• Lease Crutcher Lewis: Pacific Northwest general contractor based in Portland delivering commercial, multifamily, healthcare, and tenant improvement projects across Oregon and Washington. Directly comparable to GSI in geography, project types, and GC service model, though at materially larger scale and with a more diversified client base.
• R&H Construction: Portland-based general contractor serving multifamily, commercial, and custom residential clients across the Pacific Northwest. Comparable in scope, regional focus, and project size, with similar emphasis on high-quality pre-construction and project management.
• Emerick Construction: Portland-headquartered general contractor specializing in multifamily, affordable housing, and community-based projects. Highly comparable to GSI's affordable housing and public works focus, and a likely direct competitor on MWESB-eligible RFPs in the region.
• Andersen Construction: Portland-based general contractor with deep experience in multifamily, commercial, and public-sector projects across the Pacific Northwest. Comparable to GSI as a regional GC, with additional self-perform capabilities and a longer project track record.
• Fortis Construction: PNW-headquartered general contractor with significant multifamily, affordable housing, and public-sector work. Comparable to GSI in target market segments and project types, though at larger scale and broader geographic reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/gsibuilders
• Facebookfacebook.com/gsibuildersportland
• Instagraminstagram.com/gsibuilders
• LinkedInlinkedin.com/company/gsi-builders-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Gsi Builders Inc