Insights

Established Expertise With over a century of experience, O.C. McDonald has a long-standing reputation in plumbing, HVAC, and complex installations, positioning it as a trusted provider for large-scale, sophisticated projects that require proven technical excellence.

Quality Reputation The company's emphasis on exceptional customer service and unwavering quality creates opportunities to upsell maintenance contracts and ongoing service agreements to clients who value reliability and top-tier workmanship.

Innovation Focus O.C. McDonald's commitment to continual innovation signals openness toward adopting new technologies and sustainable solutions, presenting a chance to introduce advanced HVAC and plumbing systems that enhance efficiency and environmental sustainability.

Regional Presence Located in the competitive San Jose market with a sizable team, the firm can expand its project portfolio by leveraging its local presence to compete for large commercial and industrial contracts alongside larger firms.

Growth Potential Despite a smaller team and revenue of up to $25 million, the company's extensive experience and niche specialization position it well for strategic partnerships or expansion into emerging areas such as smart building automation and green infrastructure.

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O.C. McDonald Co. Tech Stack

O.C. McDonald Co. uses 8 technology products and services including WP Rocket, WordPress, Open Graph, and more. Explore O.C. McDonald Co.'s tech stack below.

  • WP Rocket
    Caching
  • WordPress
    Content Management System
  • Open Graph
    Content Management System
  • Microsoft Visio
    Dev Tools
  • Microsoft
    Miscellaneous
  • Priority Hints
    Performance
  • YouTube
    Video Players
  • GoDaddy
    Web Hosting

Media & News

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

O.C. McDonald Co. uses at least 1 format(s):
O.C. McDonald Co. Email FormatsExamplePercentage
FLast@ocmcdonald.comJDoe@ocmcdonald.com
46%
Last@ocmcdonald.comDoe@ocmcdonald.com
5%
First_Last@ocmcdonald.comJohn_Doe@ocmcdonald.com
3%
FLast@ocmcdonald.comJDoe@ocmcdonald.com
46%

Frequently Asked Questions

Where is O.C. McDonald Co.'s headquarters located?

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O.C. McDonald Co.'s main headquarters is located at 1150 West San Carlos Street San Jose, California 95126 United States. The company has employees across 1 continents, including North America.

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 March 2026, O.C. McDonald Co.'s annual revenue is estimated to be $1.4M.

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

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O.C. McDonald Co.'s SIC code is 1711 - Plumbing, Heating and Air-Conditioning NAICS code is 23 - Construction.

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

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As of March 2026, O.C. McDonald Co. has approximately 32 employees across 1 continents, including North America. Key team members include President: M. M.Vice President: R. S.Shipping And Receiving Manager: D. H.. 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 WP RocketWordPressOpen GraphMicrosoft VisioMicrosoftPriority HintsYouTubeGoDaddy.

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.

ConstructionCalifornia, United States11-50 Employees

Over A Century of Quality Service, Repair & Innovative Installation

In 1906, Oren Charles McDonald founded O.C. McDonald Company in San Jose, California. From the outset, O.C. McDonald was one of the foremost plumbing, process piping and HVAC service providers in the Bay Area, installing the first air conditioning system in the city. Since our inception, O.C. McDonald Company has some of the most complicated installations in the valley under our belt.

Over a century later, the founder's great grandson, Jim McDonald, has upheld the utmost level of quality workmanship, traditional values and technical innovation upon which O.C. McDonald was established.

We Believe in exceptional customer service, unwavering quality, absolute reliability, and continual innovation, on time and on budget. You can depend upon O.C. McDonald for all of your plumbing and HVAC service, repair and installation needs.

Section iconCompany Overview

Headquarters
1150 West San Carlos Street San Jose, California 95126 United States
Phone number
SIC Code
1711 - Plumbing, Heating and Air-Conditioning
NAICS Code
23 - Construction
Founded
1906
Employees
11-50

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

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

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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