About O'Brien Constructors · Portland
O'Brien Constructors, LLC is a Portland, Oregon–based general contractor (registered as a domestic LLC on March 19, 2002, with prior roots going back to 1981) that builds custom commercial and residential projects with a hands-on, design-team-integrated approach. Founded and owned by Patrick R. O'Brien, a Civil Engineering graduate of Oregon State University, the firm has delivered notable work across the Willamette Valley — including Oregon wineries such as Archery Summit and the historic Stein Homestead Barn rehabilitation for the City of Wilsonville. The company shares a second-generation construction legacy with O'Brien & Company, the design-build firm founded in 2011 by Patrick's daughter Keeley O'Brien.
O'Brien Constructors, LLC operates out of Portland's NW 21st Avenue corridor (208 NW 21st Ave, Suite 201, Portland, OR 97209) as a full-service general contractor. Owner Patrick "Pat" R. O'Brien has been building in Oregon continuously since 1981, first as part-owner and President of OTKM Construction, Inc. (1981–2003) and then through O'Brien Constructors, which he registered as an Oregon LLC in March 2002. Pat earned a BS in Civil Engineering with a focus on Construction Engineering Management from Oregon State University (1968–1973) and is a Portland native who attended Jesuit High School. The firm's website (obllc.com) describes O'Brien Constructors as a general contractor specializing in "projects with high client involvement and design team integration," with delivery methods spanning negotiated, hard-bid, construction-manager, design-build, guaranteed-maximum-price, and alternative delivery. The firm is classified by industry listings under Single-Family Housing Construction and Commercial and Office Building Contractors. Among its documented public projects is the 2006 rehabilitation of the Stein Homestead Barn and Nut Drying Shed for the City of Wilsonville (a $428,000 historic-preservation contract awarded by special procurement), as well as work on Willamette Valley wineries including Archery Summit and the Penner Ash label, which appear prominently in third-party search-engine keyword data tied to the obllc.com site. The business is also a parent-and-child story: Pat's daughter Keeley (Roarke) O'Brien founded the related design-build firm O'Brien & Company in 2011, which has since grown to five Oregon offices and is now run by Keeley as CEO. Both firms draw on Pat's four decades of construction experience and a shared reputation for craftsmanship on custom residential, hospitality, winery, civic, and historic-rehabilitation work in Oregon. O'Brien Constructors held a Washington State Department of Labor & Industries general construction contractor registration (License #OBRIECL985LO) effective 2002–2016, and remains an active Oregon corporation in good standing.
- In business
- Founded/operating since 1981 (OTKM Construction); O'Brien Constructors LLC registered March 19, 2002
- Owner
- Patrick R. O'Brien (Pat O'Brien), Owner/Manager
- Serves
- Portland, Oregon and the greater Willamette Valley, including Wilsonville, Dundee Hills, and SW Washington (Vancouver, Camas)
Company Overview
O'Brien Constructors, LLC is a Portland-based general contractor built around close collaboration between owner, design team, and builder. According to the firm's own website description (preserved in search-engine indexes), O'Brien Constructors 'specializes in projects with high client involvement and design team integration,' with delivery methods that include negotiated, hard-bid, construction-manager, design-build, guaranteed-maximum-price, and alternative delivery approaches. The company is classified in industry directories under both Single-Family Housing Construction and Commercial and Office Building Contractors, reflecting the breadth of work it accepts.
- Portland-based general contractor
- Specializes in high-owner-involvement projects and design-team integration
- Offers multiple delivery methods: negotiated, hard-bid, CM, design-build, GMP, alternative
Owner & Leadership — Patrick R. O'Brien
O'Brien Constructors is owned and managed by Patrick R. O'Brien, a career Oregon builder whose professional roots stretch back to 1981. Pat began his construction career as part-owner, General Manager, and Project Manager of OTKM Construction, Inc., which he led from 1981 to 2003. He then registered O'Brien Constructors, LLC with the Oregon Secretary of State in March 2002 and continues to operate the firm today from Portland's NW 21st Avenue corridor. Pat is also the father of Keeley Roarke O'Brien, who in 2011 founded the related design-build firm O'Brien & Company, now a five-office Oregon operation of which she serves as CEO.
- Patrick R. O'Brien — Owner / Manager
- Owner since August 1981
- BS, Civil Engineering — Construction Engineering Management, Oregon State University (1968–1973)
- Previously President & part-owner, OTKM Construction, Inc. (1981–2003)
Education & Background
Pat O'Brien's formal training is in civil and construction engineering. He completed his diploma at Jesuit High School in Portland (1964–1968) before going on to earn a Bachelor of Science in Civil Engineering with an emphasis on Construction Engineering Management from Oregon State University in Corvallis (1968–1973). His registered-agent and legal counsel relationships during the early years of the LLC were handled through the Portland law firm Stoel Rives.
- Diploma — Jesuit High School, Portland (1964–1968)
- BS Civil Engineering (Construction Engineering Management) — Oregon State University (1968–1973)
Licensing & Corporate Standing
O'Brien Constructors, LLC is a Domestic Limited Liability Company registered with the Oregon Corporation Division under Registry #7101892, with a principal place of business at 208 NW 21st Ave, Suite 201, Portland, OR 97209. The firm has also held a Washington State Department of Labor & Industries general construction-contractor registration (License #OBRIECL985LO, UBI 602210709) under specialty code 01 — General, originally issued June 20, 2002; that Washington registration lapsed on November 24, 2016. The Washington Secretary of State foreign-LLC record was administratively terminated in October 2019.
- Oregon Registry #7101892 (registered March 19, 2002)
- Washington L&I License #OBRIECL985LO — General Construction Contractor (2002–2016, expired)
- Washington UBI 602210709 — Foreign LLC (Oregon), terminated October 3, 2019
Notable Projects
O'Brien Constructors has built a portfolio of custom homes, wineries, and civic historic-preservation projects across the Willamette Valley. Among its documented municipal work is the 2006 Stein Homestead Barn and Nut Drying Shed Rehabilitation for the City of Wilsonville — a $428,000 historic-barn restoration awarded by special procurement and authorized by Wilsonville City Council Resolution 2019. The firm is also strongly associated with Oregon winery construction; search-engine keyword data for obllc.com shows high search-query volume for 'Archery Summit Winery,' 'Penner Ash,' and similar Willamette Valley labels, indicating recurring work in the boutique-winery space.
- Stein Homestead Barn and Nut Drying Shed Rehabilitation — City of Wilsonville (2006, $428,000)
- Archery Summit Winery projects (Dundee Hills)
- Penner Ash Winery (referenced via search keywords)
- Custom residential homes throughout the Willamette Valley
Service Area
Although headquartered in Portland, O'Brien Constructors has historically served clients across the Portland metro area and the greater Willamette Valley. Project records and corporate filings show work performed in Portland (multiple addresses in the 97209, 97201, and 97219 ZIP codes), Wilsonville, the Dundee Hills wine country, and registered cross-border activity in Vancouver, Washington. The firm's Washington contractor license confirms intent to operate on both sides of the Columbia River.
- Portland, OR (NW 21st Ave office)
- Hillsdale / SW Portland (8037 SW 17th Ave office)
- Wilsonville, OR
- Dundee Hills / Willamette Valley wine country
- Vancouver, WA
Office Locations & Contact
Multiple Portland addresses appear in public records for O'Brien Constructors, reflecting office moves over the years. The current registered principal place of business with the Oregon Secretary of State is 208 NW 21st Ave, Suite 201, Portland, OR 97209; the firm is also publicly listed at 1631 SW Jefferson Street, Portland, OR 97201 (MyFavoriteBuilder directory) and historically at 8037 SW 17th Ave, Portland, OR 97219 (Hillsdale neighborhood). The primary phone number on file with state regulators and public listings is (503) 241-2875.
- 208 NW 21st Ave, Suite 201, Portland, OR 97209 (current registered address)
- 1631 SW Jefferson St, Portland, OR 97201 (directory listing)
- 8037 SW 17th Ave, Portland, OR 97219 (Hillsdale; historic)
- Phone: (503) 241-2875
Family Legacy & O'Brien & Company
O'Brien Constructors is the parent firm of a broader O'Brien construction family in Oregon. In 2011, Pat's daughter Keeley O'Brien founded O'Brien & Company, a sister design-build firm now operating from offices in Cannon Beach, Dundee, Portland, and Bend. The two companies are distinct legal entities — O'Brien Constructors remains under Pat as Manager/Governor, while O'Brien & Company is led by Keeley as CEO — but they share brand recognition, second-generation contractor status, and overlapping portfolio categories including wineries, breweries, hospitality, schools, custom homes, and public works. Alignable describes O'Brien & Company as 'a second generation contractor with more than 38 years of design, construction, and development experience,' crediting Pat as Principal of O'Brien Constructors LLC.
- O'Brien & Company founded 2011 by Keeley O'Brien (Pat's daughter)
- Five Oregon offices: Cannon Beach, Dundee, Portland, Bend + Willamette Valley
- Shared specializations: wineries, breweries, hospitality, custom homes, public works
- Two distinct legal entities sharing brand and family lineage
Catholic Community Connection
Although O'Brien Constructors does not publicly self-identify as a Catholic-owned business on obllc.com or in its corporate filings, the firm has several clear ties to the Portland-area Catholic community. Owner Patrick O'Brien is a 1968 graduate of Jesuit High School, a Catholic college-preparatory school in Beaverton, Oregon. The firm's long-time Hillsdale office at 8037 SW 17th Ave sits roughly 400 meters from St. Clare Catholic Church (8535 SW 19th Ave) and within the parish's neighborhood catchment. The family's related design-build firm, O'Brien & Company, was the contractor for the St. Michael the Archangel Youth Center at CYO/Camp Howard — a Catholic youth-ministry project in Corbett, Oregon, that won the 2025 Oregon Excellence in Concrete Award for its cast-in-place 'Labyrinth' plaza inspired by the Chartres Cathedral.
- Owner Pat O'Brien — Jesuit High School alumnus (1964–1968)
- Hillsdale office located steps from St. Clare Catholic Church
- Family firm O'Brien & Company built St. Michael the Archangel Youth Center for CYO/Camp Howard
- No explicit Catholic self-identification on obllc.com