William C Vanengelenburg
Real Estate Agent (Managing Broker)
Auburn WA

Managing Broker (WA: 13446)

REALTOR® 2 Active Listings Serves King County, WA
View on Realtor.com

Contact Information

Brokerage
Re/Max Realty South
Office Address
4329 A St Se Ste E
Auburn, WA  98002-8618
(King County)
Office Phone
253-397-4911
Office Fax
253-638-3605
Mobile
206-650-4435
Email
rlest8man@aol.com
Website

Service Areas

Shadow Lake: WA Kent: WA Lake Morton-Berrydale: WA Covington: WA Auburn: WA Mirrormont: WA Maple Valley: WA Ravensdale: WA East Renton Highlands: WA Hobart: WA Newcastle: WA Renton: WA

About William Vanengelenburg

A graduate of the University of Michigan with a degree in business, this professional serves as the Broker and Owner of RE/MAX Realty South in Auburn, Washington, and RE/MAX Select in Renton, Washington. With a robust background in residential sales, as well as expertise in commercial and multifamily properties, they bring a comprehensive understanding of the real estate market to their clients.

King County, WA Real Estate Market Analysis (Single Family Homes)

$1,681,188
Avg. Listing Price
From William's portfolio
3.8 / 3.0
Avg. Beds/Baths
Typical property size
2,703 sf
Avg. Square Footage
Interior living space
5370
Active Listings
Current inventory

If you need to reach working real estate agents in King County, Washington, this list was built for you. Mortgage lenders, title companies, PropTech platforms, insurance providers, continuing education companies, and recruiters all rely on verified agent contact data to drive outreach campaigns that actually convert. Whether you're launching a new product, filling a pipeline, or growing a brokerage, the right contact list is the foundation of everything.

This King County agent list gives you direct access to {{AGENT_COUNT}} actively licensed real estate professionals with verified email addresses, plus {{CELL_COUNT}} agents who also have cell phone numbers on file. Use it for cold email sequences through platforms like Zap Contact (zapcontact.com) or other cold-email tools, for direct mail drops, for SMS outreach, or to fuel LinkedIn audience matching. No gatekeepers, no guessing — just verified contacts ready to work.

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

Our data is sourced directly from Washington State licensing board records, so every contact reflects an agent who holds an active license — not someone who let their credentials lapse three years ago. New emails are added weekly, the full list is cleaned monthly, and we perform a complete database refresh every six months. That discipline is why we can back every list with a 96% deliverability guarantee, something the cheap data vendors pushing outdated CSVs simply cannot offer.

We have been in this business since 2005 and have sold over 31,000 lists across the country. That track record matters when you are deciding who to trust with your marketing budget. When you buy King County real estate agent email list data from us, you are buying from a team that has refined its sourcing and verification process over two decades — not a reseller running stale imports through a generic database.

How to Use This King County Agent List

The most immediate use is cold email outreach. Load the list into a platform like Zap Contact (zapcontact.com), build a short sequence, and you are in front of hundreds of active agents within hours. For higher-touch campaigns, combine email with direct mail to the same contacts for a multichannel approach that dramatically increases response rates. If you have cell numbers, layering in SMS or ringless voicemail can push conversion even further.

Segmenting by broker versus sales agent is a smart move if your offer differs for team leaders versus individual producers. You can also filter by city or zip code within King County to tighten your targeting for local events, geographic promotions, or territory-based sales teams.

Why King County, Washington Agent Data Matters

King County is home to Seattle, Bellevue, Redmond, Kirkland, Renton, and dozens of other active real estate markets that together represent one of the most productive agent communities in the Pacific Northwest. With {{AGENT_COUNT}} licensed agents operating across this county, a targeted list here puts your message in front of a dense, high-activity professional audience. Sending a statewide blast means your offer gets diluted across rural markets that may have no relevance to your business — local targeting changes that entirely.

We are the only vendor that delivers King County agent data segmented down to the zip code level, giving you surgical precision no other source can match. Whether you need agents in a single neighborhood or every zip in the county, the data is ready to deploy exactly how your campaign requires it.

Current Property Listings

As of 6/15/2026, William Vanengelenburg has 2 properties for sale in Auburn and surrounding areas.

$795,000

Listed 2026-03-16

19216 SE 278th St
Kent, WA  98042

Beds: 3.0
Baths: 2.0
Sq Ft: 2,040
Lot: 53,579 sf
Single Family Map
View Full Details

$335,000

Listed 2026-01-01

22034 SE 272nd Pl
Maple Valley, WA  98038

Beds: 2.0
Baths: 1.0
Sq Ft: 1,250
Lot: 10,171 sf
Mobile Map
View Full Details

Current Property Rentals

William Vanengelenburg currently has no rental properties available in Auburn and surrounding areas. Check back later.