Our Companies

Our Portfolio

Five operating companies across real estate, marine, media, and lifestyle — each built to lead in its sector.

Mizner Estate Properties

Luxury Real Estate

Mizner Estate Properties

Est. 2004

A boutique luxury real estate firm serving Palm Beach and South Florida's most distinguished residential markets. Founded in 2004, the firm was built on a simple belief: exceptional properties deserve exceptional representation. Named in honor of Addison Mizner—the visionary architect whose Mediterranean Revival style helped define Palm Beach—our firm reflects the same commitment to craftsmanship, distinction, and enduring quality. More than two decades later, we remain deliberately boutique. We do not measure success by volume, but by the quality of the properties we represent and the relationships we build. Every engagement is handled with discretion, market expertise, and highly personalized, concierge-level service.

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Realty Grand

Real Estate

Realty Grand

Est. 2000

Realty Grand is a full-service South Florida brokerage providing expertise in residential and commercial real estate, business acquisitions and sales, and investment opportunities.

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Marine Worldwide

Marine & Energy Staffing

Marine Worldwide

Est. 2000

Marine Worldwide provides specialized labor, professional recruitment, staffing, and business support to companies throughout the marine and energy industries.

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Marine World News

Marine & Energy Media

Marine World News

Est. 2000

Marine World News delivers global news, insights, and industry updates across the marine, maritime, offshore, and energy sectors.

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WebGolfClub

Lifestyle & Community

WebGolfClub

Est. 2000

WebGolfClub was founded in 2000 with a vision to create a truly global golf community—bringing together golfers from around the world through a shared passion for the game. While golf websites and organizations are everywhere, WebGolfClub was built to be different. Our goal is to recreate the personal connection and sense of belonging found at a great private club, but on a global scale. We believe a golf community should feel personal. Members aren't numbers or users—they're part of the club.

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Global Title Sponsor

OceanGuard

OceanGuard

Herlong Corp is a proud global title sponsor of OceanGuard.org — a non-profit dedicated to protecting and restoring the world's oceans through science-led conservation, community engagement, and environmental accountability. Our Vision is a future where healthy oceans sustain all life where marine ecosystems thrive and human activity supports rather than threatens the sea.

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