What is O'Brien Mechanical, Inc. II's NAICS code?

O'Brien Mechanical, Inc. II's NAICS code is 23 (Construction).

Insights

Regional Union Builder San Francisco based union contractor with strong local footprint and experience in both commercial and residential mechanical piping and plumbing, presenting a steady target for nearby developers and GC partners seeking union labor.

Growing Revenue Range Reported private company revenue between 10M-25M with a long operating history since 1972, indicating scale and potential for higher-value maintenance, design-build, or multi-site projects, especially in Bay Area.

Maintenance and Retrofit Potential Capabilities in both plumbing and mechanical piping for commercial and residential sectors open doors for retrofit, facility maintenance, and energy-efficiency upgrades in existing Bay Area buildings.

Tech-Friendly Operations Adopts common business and web technologies (Microsoft 365, Bootstrap, jQuery) suggesting receptivity to digital project management, collaboration tools, and potential integration with modern BIM/CMC workflows.

Strategic Partnerships Size and market position align with mid-market contractors and private owners; potential to pursue preferred supplier or alliance arrangements with larger EPC firms or building developers looking for reliable union trades on Bay Area projects.

O'Brien Mechanical, Inc. II Tech Stack

O'Brien Mechanical, Inc. II uses 8 technology products and services including Microsoft 365, MixItUp, FancyBox, and more. Explore O'Brien Mechanical, Inc. II's tech stack below.

Microsoft 365

MixItUp

Javascript Frameworks

FancyBox

Javascript Libraries

jQuery

Javascript Libraries

OWL Carousel

Javascript Libraries

Wow

Marketing Analytics

Bootstrap

UI Frameworks

GoDaddy

Web Hosting

O'Brien Mechanical, Inc. II Email Formats	Example	Percentage
FirstL@obmi2.com	JohnD@obmi2.com	79%
FLast@obmi2.com	JDoe@obmi2.com	17%
First@obmi2.com	John@obmi2.com	4%

O'Brien Mechanical, Inc. II Email Formats

Example

Percentage

FirstL@obmi2.com

JohnD@obmi2.com

79%

FLast@obmi2.com

JDoe@obmi2.com

17%

First@obmi2.com

John@obmi2.com

Frequently Asked Questions

What is O'Brien Mechanical, Inc. II's phone number?

You can contact O'Brien Mechanical, Inc. II's main corporate office by phone at

+1-415-695-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is O'Brien Mechanical, Inc. II's official website and social media links?

O'Brien Mechanical, Inc. II's official website is obmi2.com and has social profiles on LinkedIn.

How much revenue does O'Brien Mechanical, Inc. II generate?

As of July 2026, O'Brien Mechanical, Inc. II's annual revenue is estimated to be $10M - $25M.

What is O'Brien Mechanical, Inc. II's SIC code NAICS code?

O'Brien Mechanical, Inc. II's SIC code is 7699 - Repair Shops and Related Services, Not Elsewhere Classified NAICS code is 23 - Construction.

How many employees does O'Brien Mechanical, Inc. II have currently?

As of July 2026, O'Brien Mechanical, Inc. II has approximately 15 employees across 1 continents, including North America. Key team members include Assistant Project Manager: M. F.Principal: C. B.Project Engineer: P. V.. Explore O'Brien Mechanical, Inc. II's employee directory with LeadIQ.

What industry does O'Brien Mechanical, Inc. II belong to?

O'Brien Mechanical, Inc. II operates in the Construction industry.

What technology does O'Brien Mechanical, Inc. II use?

O'Brien Mechanical, Inc. II's tech stack includes Microsoft 365MixItUpFancyBoxjQueryOWL CarouselWowBootstrapGoDaddy.

What is O'Brien Mechanical, Inc. II's email format?

O'Brien Mechanical, Inc. II's email format typically follows the pattern of FirstL@obmi2.com. Find more O'Brien Mechanical, Inc. II email formats with LeadIQ.

When was O'Brien Mechanical, Inc. II founded?

O'Brien Mechanical, Inc. II was founded in 1972.

O'Brien Mechanical, Inc. II

Q: What is O'Brien Mechanical, Inc. II's official website and social media links?

O'Brien Mechanical, Inc. II's official website is obmi2.com. O'Brien Mechanical, Inc. II has social profiles on LinkedIn.

Q: How many employees does O'Brien Mechanical, Inc. II have currently?

O'Brien Mechanical, Inc. II has approximately 15 employees.

ConstructionCalifornia, United States11-50 Employees

O'Brien Mechanical, Inc. II is a San Francisco-based contractor specializing in plumbing and mechanical piping. Affiliated with Union Local 38, the company provides these services to general contractors and owners across the Bay Area. Its work spans both commercial projects and residential housing.

Founded in 1972, the privately held firm is based in San Francisco. Its Bay Area focus and union affiliation position it as a local provider of plumbing and mechanical piping services for both commercial and residential construction projects.

Insights

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