3705 Holding Company

3705 Holding Company

A family of companies.
Connected by people.

Get to know our companies and the people behind them.

Explore Our Companies

Different strengths. Shared commitment.

Our Companies

Meet the businesses in our family.

Sparks at Play

Playground equipment, planning, and recreation spaces for communities.

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Hunt Valley Contractors

Construction, architectural concrete, coatings, and playground installation.

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Hunt Valley Distributors

Concrete form liner distribution and practical product guidance.

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Playground Inspections

Playground inspections and safety guidance for the spaces communities use.

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Our People

Our strength
is our team.

Construction experience, product knowledge, and a commitment to one another connect our family of companies. Meet the people behind the work and see how we’re growing together.

Meet Our People Grow With Us
Colleagues together at the 2026 annual meeting
Different strengths. One connected team.

Our Story

A family beginning.

Tom and Linda Sparks started Tom Lin Construction in their basement. Discover the story behind our family of companies.

Explore Our Story

Our Community

Rooted here. Giving back.

From classroom learning and scholarships to food deliveries and local leadership, our commitment to people reaches beyond our team.

Our Community