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The Best HVAC and Plumbing System Solutions Provider In Texas

With over 80 years of experience and a rich Texas heritage, Oslin Nation Co. (ONCO) stands as a leader in hydronic and plumbing solutions. Our commitment to exceptional customer service and expert system knowledge ensures that you receive comprehensive solutions and advice. Experience the ONCO difference — where dedication meets excellence.

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Why Oslin Nation Company?

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Looking for expert assistance or ready to discuss your needs in person? Our interactive map lets you easily locate a sales representative in your region. Simply enter your location to connect with the right person for your business. Get personalized support, local insights, and quick responses—right at your fingertips.

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Careers at Oslin Nation

Arlington, TX See 4 Available Openings
Warehouse Specialist

Job Description / Details: Oslin Nation has a great opportunity for someone to join the warehouse team! The right candidate will exhibit strong character traits and will work quickly and accurately. Successful candidates are team players and will have experience in warehousing, distribution, and customer interaction. This position is primarily […]

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Application Engineering / Business Development

Job description We have an exciting opportunity for an Application Engineer / Business Development rep with a knack for problem solving and the ability to build meaningful business relationships. The ideal candidate will be solution oriented and will be a strong resource for our customers’ needs. This position is responsible […]

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Sales Trainee

Job description This entry-level role will focus on training and developing the necessary skills to prepare the candidate for a sales role, typically within 1-2 years. The training process will include spending time in each of the following roles: Warehouse, Customer Service, Project Coordinator, Estimator (Job Costing), etc. Following this […]

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Accounts Receivable Specialist

Oslin Nation Co. has a great opportunity for an experienced Accounts Receivable (A/R) Specialist. The company is a Manufacturer’s Representative that serves the mechanical (hydronic) and plumbing contractors in the commercial, institutional, and industrial markets in Texas. The Accounts Receivable Specialist will be expected to perform various tasks involved in […]

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Houston, TX See 3 Available Openings
Project Coordinator

Job Description: Are you a reliable, enthusiastic, detail-oriented individual who can handle multiple projects at once? If so, we invite you to apply to join the Project Coordinator team at Oslin Nation! The right individual is self-motivated, learns quickly, and has a great attitude and demonstrates an eagerness to learn […]

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Application Engineering / Business Development

Job description We have an exciting opportunity for an Application Engineer / Business Development rep with a knack for problem solving and the ability to build meaningful business relationships. The ideal candidate will be solution oriented and will be a strong resource for our customers’ needs. This position is responsible […]

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Estimator - Job Coster

Job description Oslin Nation has a great opportunity to be an integral member of the Oslin Nation estimating team! Reporting directly to the Branch Manager and working in a team environment, the successful candidate will learn the many products we represent and how to apply them to applications. We are […]

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San Antonio, TX See 4 Available Openings
Application Engineering / Business Development

Job description We have an exciting opportunity for an Application Engineer / Business Development rep with a knack for problem solving and the ability to build meaningful business relationships. The ideal candidate will be solution oriented and will be a strong resource for our customers’ needs. This position is responsible […]

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Estimator - Job Coster

Job description Oslin Nation Co. has a great opportunity for someone to join the estimator team! Job Details: This position is primarily responsible for producing accurate and comprehensive material quotes for represented product lines, and learning the technical aspects and uses for products. This role involves reviewing commercial building plans […]

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Project Coordinator

Job Description: Are you a reliable, enthusiastic, detail-oriented individual who can handle multiple projects at once? If so, we invite you to apply to join the Project Coordinator team at Oslin Nation! The right individual is self-motivated, learns quickly, and has a great attitude and demonstrates an eagerness to learn […]

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Sales Trainee

Job description This entry-level role will focus on training and developing the necessary skills to prepare the candidate for a sales role, typically within 1-2 years. The training process will include spending time in each of the following roles: Warehouse, Project Coordinator, Estimator (Job Costing), etc. Following this training period, […]

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Austin, TX See 3 Available Openings
Project Coordinator

Job Description: Are you a reliable, enthusiastic, detail-oriented individual who can handle multiple projects at once? If so, we invite you to apply to join the Project Coordinator team at Oslin Nation! The right individual is self-motivated, learns quickly, and has a great attitude and demonstrates an eagerness to learn […]

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Contractor Sales Representative

Job description Oslin Nation Co has an exciting opportunity for a sales person! We are a manufacturer’s representative serving the mechanical (hydronic) and plumbing contractors in the commercial, institutional, and industrial markets in Texas. The ideal candidate has experience working with mechanical contractors and has the ability to develop relationships […]

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Boiler Startup / Service Technician

Job description We are seeking an experienced Boiler Startup / Service Technician at our Arlington location. This position will be responsible for performing boiler / water heater startups and provide technical support for newly installed equipment. The ideal candidate will be customer service oriented and is a true professional. The […]

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Questions?

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