Insights

Stable Growth Mid-market construction and service firm with a multi-decade legacy and annual revenue between 10 and 25 million presents a solid target for expanded plumbing, HVAC, and process piping service contracts, retrofit projects, and preventive maintenance programs.

Regional Expertise Longstanding presence in the Bay Area with a history of complex installations positions the company for targeted expansion into additional commercial facilities, government buildings, and retrofit opportunities that require high reliability and specialized technical capability.

Tech-Forward Operations Adoption of established software and collaboration tools (WordPress, MySQL, Office 365, Google Analytics, Bluebeam, Brevo) suggests openness to digital project management, BIM coordination, digital documentation, and customer portal enhancements to improve bidding accuracy and service delivery.

Quality and Reliability A brand centered on on-time, on-budget delivery and a legacy of firsts in the Bay Area (first air conditioning system) can be leveraged to upsell performance-based service contracts, energy efficiency upgrades, and long-term maintenance loyalties with performance guarantees.

Growth Opportunities Financial scale places O.C. McDonald among mid-sized peers, enabling partnerships for larger product procurement, cross-sell of controls, efficiency retrofits, and bundled service packages to expand share with larger general contractors and facilities management groups.

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O.C. McDonald Co. Tech Stack

O.C. McDonald Co. uses 8 technology products and services including WordPress, MySQL, Microsoft Visio, and more. Explore O.C. McDonald Co.'s tech stack below.

  • Content Management System
  • MySQL
    Database
  • Microsoft Visio
    Dev Tools
  • Document Management Systems
  • Live Chat
  • Office Suites
  • Google Analytics
    Web Analytics
  • GoDaddy
    Web Hosting

O.C. McDonald Co.'s Email Address Formats

O.C. McDonald Co. uses at least 3 email formats:
O.C. McDonald Co. Email FormatsExamplePercentage
FLast@ocmcdonald.comJDoe@ocmcdonald.com
86%
Last@ocmcdonald.comDoe@ocmcdonald.com
8%
First_Last@ocmcdonald.comJohn_Doe@ocmcdonald.com
6%

Frequently Asked Questions

What is O.C. McDonald Co.'s phone number?

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You can contact O.C. McDonald Co.'s main corporate office by phone at . 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.C. McDonald Co.'s official website and social media links?

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O.C. McDonald Co.'s official website is ocmcdonald.com and has social profiles on LinkedIn.

How much revenue does O.C. McDonald Co. generate?

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As of August 2026, O.C. McDonald Co.'s annual revenue is estimated to be $10M - $25M.

What is O.C. McDonald Co.'s NAICS code?

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O.C. McDonald Co.'s NAICS code is 23 - Construction.

How many employees does O.C. McDonald Co. have currently?

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As of August 2026, O.C. McDonald Co. has approximately 33 employees across 1 continents, including North America. Key team members include Administrative Office Assistant: J. M. Explore O.C. McDonald Co.'s employee directory with LeadIQ.

What industry does O.C. McDonald Co. belong to?

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O.C. McDonald Co. operates in the Construction industry.

What technology does O.C. McDonald Co. use?

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O.C. McDonald Co.'s tech stack includes WordPress, MySQL, Microsoft Visio, Bluebeam, Brevo, Office 365, Google Analytics and GoDaddy.

What is O.C. McDonald Co.'s email format?

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O.C. McDonald Co.'s email format typically follows the pattern of FLast@ocmcdonald.com. Find more O.C. McDonald Co. email formats with LeadIQ.

When was O.C. McDonald Co. founded?

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O.C. McDonald Co. was founded in 1906.
O.C. McDonald Co. logo

O.C. McDonald Co.

ConstructionCalifornia, United States11-50 Employees

O.C. McDonald Co. is a San Jose, California-based construction firm specializing in plumbing, process piping, and HVAC services, including maintenance, repair, and installation. Founded in 1906 by Oren Charles McDonald, the company has a long history of completing demanding installations in the Bay Area, including introducing air conditioning in the city. The business remains family-led, with management passed to the founder's great grandson, Jim McDonald, and operates as a small- to mid-sized contractor that emphasizes workmanship and technical innovation.

Its clients are organizations seeking plumbing, piping, and HVAC service, repair, and installation across the Bay Area, with projects that require reliability and quality workmanship. Within the construction industry, the firm is recognized for its experience with complex installations and sustained performance.

Section iconCompany Overview

Phone number
NAICS Code
23 - Construction
Founded
1906
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    O.C. McDonald Co.'s revenue is estimated to be in the range of $10M - $25M

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