Donna Madden
Real Estate Agent (Associate Broker)
Hicksville NY

Associate Broker (NY: 30MA0723765)

REALTOR® 1 Active Listings Serves Nassau County, NY
View on Realtor.com

Contact Information

Brokerage
Daniel Gale Sotheby's International Realty

Office Website
Office Address
113 Kuhl Ave
Hicksville, NY  11801
(Nassau County)
Office Phone
631-692-6770
Office Fax
Mobile
631-692-6765
Email
donnamadden@danielgale.com
Website

Service Areas

Centerport: NY Greenlawn: NY Huntington: NY Lloyd Harbor: NY Cold Spring Harbor: NY East Norwich: NY Muttontown: NY Oyster Bay: NY Huntington Bay: NY West Hills: NY Huntington Station: NY Halesite: NY Elwood: NY Dix Hills: NY Melville: NY South Huntington: NY Wheatley Heights: NY Northport: NY Asharoken: NY Eatons Neck: NY East Northport: NY Fort Salonga: NY Cove Neck: NY Upper Brookville: NY Matinecock: NY Laurel Hollow: NY Centre Island: NY Mill Neck: NY Oyster Bay Cove: NY Syosset: NY Hicksville: NY

About Donna Madden

**Donna Madden**
*Associate Real Estate Broker | Gold Circle of Excellence Member | Certified Buyer Representative | Short Sale & Foreclosure Specialist | Relocation Expert | Long Island Board of Realtors Member*

With over 19 years of experience in the real estate industry, Donna Madden has established herself as a leading associate broker at Daniel Gale Sotheby's International Realty. Her dedication and expertise have earned her a place among the firm's top-producing agents and recognition as a member of the esteemed Gold Circle of Excellence.

A lifelong resident of Long Island, Donna possesses an in-depth understanding of the North Shore, which fuels her passion for helping clients navigate the local market. Her qualifications include certification as a Buyer Representative, alongside various accolades that reflect her commitment to excellence.

Donna's approach to real estate is characterized by her unwavering focus on client satisfaction. She believes in providing personalized attention throughout the buying or selling process, ensuring a seamless experience. Her business thrives on referrals, a testament to the trust she builds with her clients.

At Daniel Gale Sotheby’s International Realty, a firm with a legacy dating back to 1922, Donna embodies the core values of integrity, confidentiality, and exceptional service. Her diligence and discretion make her a reliable partner in the pursuit of your ideal home.

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

$1,496,994
Avg. Listing Price
From Donna's portfolio
4.1 / 3.0
Avg. Beds/Baths
Typical property size
2,500 sf
Avg. Square Footage
Interior living space
3110
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 6/27/2026, Donna Madden has 1 property for sale in Hicksville and surrounding areas.

$649,900

Listed 2026-02-12

113 Kuhl Ave
Hicksville, NY  11801

Beds: 2.0
Baths: 1.0
Sq Ft: 960
Lot: 7,000 sf
Single Family Map
View Full Details

Current Property Rentals

Donna Madden currently has no rental properties available in Hicksville and surrounding areas. Check back later.