Partner & CEO Opportunity: Commercial Door & Frame Installation

Are you an ambitious and experienced leader in the construction or specialty contracting world, ready to step into a significant ownership role and drive the growth of a thriving business? Have you envisioned owning your own company but want a strong foundation and strategic support?

Mainshares is seeking a Partner & Chief Executive Officer to lead a well-established commercial door and frame company serving the San Francisco Bay Area. With over 25 years in business, the company specializes in the production and installation of metal and wood doors, frames, and hardware. Backed by a skilled team, union installers, and a reputation for excellence, this is a unique opportunity to partner in ownership and operation of a business with an established client base and long-standing industry reputation.

As a Partner & CEO, you'll benefit from a competitive compensation structure that includes substantial equity, allowing you to build significant wealth as the business grows.

What You Can Expect

Strategic Partnership & Support
While you’ll be the ultimate decision-maker, you’ll gain access to Mainshares Capital’s robust platform of services, advisors, and vendors. This includes mentorship from seasoned owners and operators in the construction and contracting industries, providing valuable insights as you lead the company.

Uncapped Growth Potential
This opportunity offers the chance to directly impact the trajectory of a highly regarded commercial contractor. You’ll have the autonomy to expand market presence, deepen client relationships, and pursue large-scale projects throughout the Bay Area, with the financial rewards of ownership directly tied to your success.

Meaningful Ownership & Impact
You’ll be at the helm of a respected business, making operational and strategic decisions that directly shape its future. Your leadership will drive continued reliability and growth, while building on the company’s reputation for professionalism and quality service.

About the Opportunity

The company has been a trusted partner for property managers, contractors, and businesses and its expertise includes:

• Hollow metal frames and doors
  

• Paint/stain grade wood frames and doors
  

• Interior aluminum frames
  

• STC-rated sound doors
  

• Custom designs (including curved/radius frames)
  

• Comprehensive door hardware installation
  

With a well-equipped production facility, union workforce, and streamlined estimating and accounting functions, the business is positioned for long-term success and growth.

Who We Are Looking For

We’re searching for a highly driven, experienced leader with an entrepreneurial spirit and proven success in construction, contracting, or related industries. This role requires a hands-on approach to strategic planning, operational execution, and leadership of a skilled team.

Essential Qualifications

• Industry Experience: 10+ years in construction, specialty contracting, or building materials, with strong operational leadership background.
  

• P&L Ownership: Proven track record managing budgets, financial analysis, and driving profitability.
  

• Team Leadership: Experience managing crews, installers, or project managers; ability to build a high-performance culture.
  

• Operational Excellence: Familiarity with estimating, bidding, project management, and large-scale installations.
  

• Business Development Acumen: Ability to manage client relationships, secure new contracts, and grow market share.
  

• Technical Proficiency: Understanding of commercial door, frame, and hardware systems; knowledge of union labor operations a plus.
  

• Nice to have Licensing: California Contractors License C-61 and D-28.
  

• Location Disclaimer - This is an opportunity to grow a Mainshares acquisition business. The exact location of the acquisition target will be disclosed in the interview process. Relocation may be required for this role.