Mark Leventhal

Mark Leventhal
Real Estate Agent (Associate Broker)
Manhasset NY

Associate Broker (NY: 10301213996)

REALTOR® 4 Active Listings Serves Nassau County, NY
View on Realtor.com

Contact Information

Brokerage
Office Address
1468 Northern Blvd
Manhasset, NY  11030
(Nassau County)
Office Phone
516-517-4751
Office Fax
Mobile
516-330-8001
Email
mark.leventhal@compass.com

Service Areas

Russell Gardens: NY Great Neck Plaza: NY Great Neck: NY Great Neck Gardens: NY Saddle Rock: NY Thomaston: NY Saddle Rock Estates: NY Manhasset: NY Great Neck Estates: NY Lake Success: NY University Gardens: NY Kensington: NY Kings Point: NY Plandome Heights: NY Flower Hill: NY Plandome Manor: NY Plandome: NY North Hills: NY Munsey Park: NY New Hyde Park: NY Manhasset Hills: NY North New Hyde Park: NY Queens: NY New York: NY Garden City Park: NY Hillside Manor: NY Herricks: NY Port Washington: NY Baxter Estates: NY Port Washington North: NY Manorhaven: NY Sands Point: NY East Atlantic Beach: NY Atlantic Beach: NY Roslyn Harbor: NY East Hills: NY Roslyn: NY Greenvale: NY Old Brookville: NY Glenwood Landing: NY Brookville: NY Old Westbury: NY Roslyn Estates: NY Searingtown: NY Roslyn Heights: NY Albertson: NY Laurel Hollow: NY Syosset: NY Hicksville: NY Oyster Bay Cove: NY Muttontown: NY Woodbury: NY Plainview: NY Little Neck: NY

About Mark Leventhal

**Founding Agent - Compass North Shore Long Island**

Mark Leventhal offers a distinctive approach to buying and selling homes on Long Island’s North Shore, characterized by his commitment to honesty, integrity, and professionalism. His dedication to each client and transaction has established a remarkable track record, distinguishing him in the competitive real estate landscape.

In recognition of his achievements, Mark was ranked as the second agent in the Manhasset office of his previous brokerage for three consecutive years (2017-2019) and placed among the Top 10 agents across Long Island in 2018 and 2019. As a Licensed Associate Real Estate Broker, he specializes in luxury properties from Long Island to New York City, consistently striving to meet his clients' individual objectives. Mark also holds the Certified Buyers Representative (CBR) designation, enhancing his effectiveness as both a listing and buyer’s agent. His expertise encompasses various property types, including relocations, condominiums, gated communities, and single-family homes throughout the sought-after North Shore.

A native of the Gold Coast and a lifelong resident, Mark currently resides in Manhasset with his wife. His deep familiarity with the local market, combined with his exceptional negotiation skills, positions him to navigate complex transactions successfully. With over 25 years of experience as an entrepreneur and business owner in the financial sector, he brings a unique perspective to his real estate practice.

Mark's commitment to excellence has fostered strong loyalty among his clients, as evidenced by their enthusiastic testimonials. One satisfied client remarked, “Having bought and sold four homes, I can confidently say Mark is the most attentive and hardworking agent I've encountered. His personal consultation in preparing our home for sale was exceptional. He guided us through minor renovations, collaborated with our contractor and HOA, and ensured the property was competitively priced for a swift sale. We couldn’t be happier with the outcome and with Mark’s support!”

For inquiries about buying or selling a home, or to discuss the current market, contact Mark for comprehensive real estate solutions.

Nassau County, NY Real Estate Market Analysis (Single Family Homes)

$1,504,515
Avg. Listing Price
From Mark's portfolio
4.1 / 3.0
Avg. Beds/Baths
Typical property size
2,503 sf
Avg. Square Footage
Interior living space
3068
Active Listings
Current inventory

If you need to reach working real estate agents in Nassau County, New York, this list was built for you. Mortgage lenders prospecting for referral partners, title companies looking to grow their closing volume, PropTech platforms launching in the New York metro, insurance providers targeting E&O or home warranty clients, continuing education providers, and recruiters building out their agent pipelines all rely on this data to drive outreach that actually lands in front of licensed professionals.

When you buy Nassau County real estate agent email list data from a source that maintains it properly, you are not just getting a spreadsheet — you are getting a direct line to {{AGENT_COUNT}} actively licensed agents with verified email addresses, plus {{CELL_COUNT}} agents who also have cell phone numbers on file. That kind of reach, at the county level, gives any B2B campaign a serious head start over cold prospecting from scratch.

Why Buy a Nassau County Real Estate Agent Email List From Dr Bill

This data is sourced directly from the New York State real estate licensing board, which means every contact represents a currently licensed agent — not someone who let their license lapse two years ago. New emails are added weekly, the full list is cleaned monthly, and the entire database is refreshed bi-annually. That ongoing maintenance is what backs the 96% deliverability guarantee. Cheap list vendors do not offer that because they cannot — they are reselling stale compiled data with no maintenance cycle behind it.

Dr Bill has been in the list business since 2005 and has sold over 31,000 lists to marketers, lenders, recruiters, and vendors across every industry that serves real estate professionals. That track record matters when you are spending real budget on outreach. The Nassau County file is available at the state, county, city, and zip code level — and no other vendor offers zip code-level segmentation within Nassau County specifically.

How to Use This Nassau County Agent List

The most immediate use is cold email outreach through platforms built for it. Tools like Zap Contact (zapcontact.com) are designed to handle verified B2B contact lists, manage sending volume, and track campaign performance without getting flagged. Beyond email, the same data supports direct mail drops, phone and SMS campaigns using the included cell numbers, and LinkedIn audience matching to layer in display-level touchpoints alongside your direct outreach.

You can also segment the list by broker versus sales agent status, which changes your messaging entirely. Brokers respond to different value propositions than individual agents, and splitting your campaign accordingly consistently improves conversion rates across every channel.

Why Nassau County, New York Agent Data Matters

Nassau County covers a dense, high-activity market that includes Garden City, Great Neck, Hempstead, Mineola, Hicksville, and Valley Stream, among others. With {{AGENT_COUNT}} licensed agents working across these communities, the county represents a concentrated professional population worth targeting on its own terms — not as a footnote inside a statewide New York blast that dilutes your budget across irrelevant markets.

Local targeting at the Nassau County level lets you tailor your offer to the specific submarkets and brokerage culture agents here actually work in. A statewide list means competing for attention alongside every other vendor blasting Albany, Buffalo, and Syracuse simultaneously. A county-level file with zip code segmentation means your message reaches the right agents, in the right neighborhoods, with copy that speaks directly to their market.

Current Property Listings

As of 6/21/2026, Mark Leventhal has 4 properties for sale in Manhasset and surrounding areas.

$1,178,000

Listed 2026-03-08

2930 Bell Blvd
Bayside, NY  11360

Beds: 3.0
Baths: 1.0
Sq Ft: 1,120
Lot: 3,798 sf
Single Family Map
View Full Details

$2,795,000

Listed 2026-01-05

23 Hathaway Ln
Manhasset, NY  11030

Beds: 5.0
Baths: 4.5
Sq Ft: 3,618
Lot: 5,027 sf
Condo Map
View Full Details

$3,598,000

Listed 2026-05-22

147 Darters Ln
Manhasset, NY  11030

Beds: 5.0
Baths: 4.5
Sq Ft: 4,800
Lot: 2,263,182 sf
Condo Map
View Full Details

$3,198,000

Listed 2026-06-04

23 Estates Ter N
Manhasset, NY  11030

Beds: 4.0
Baths: 4.0
Sq Ft: 4,200
Lot: 2,263,182 sf
Condo Map
View Full Details

Current Property Rentals

Mark Leventhal currently has no rental properties available in Manhasset and surrounding areas. Check back later.