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Katherine Kratzig Portenga

Katherine Kratzig Portenga
Real Estate Agent (Broker Associate)
Denver CO

Broker Associate (CO: 100020185)

19 years experience

REALTOR® 2 Active Listings Serves Denver County, CO
View on Realtor.com

Contact Information

Brokerage
Coldwell Banker Global Luxury Denver

Office Website
Office Address
600 N Grant St Ste 900
Denver, CO  80203-3528
(Denver County)
Office Phone
303-758-7611
Office Fax
303-320-1338
Mobile
303-758-7611
Email
katie@portengaproperties.com

Service Areas

Denver: CO Glendale: CO Fairmount: CO Berkley: CO Arvada: CO Wheat Ridge: CO Aurora: CO Lowry: CO Englewood: CO Cherry Hills Village: CO Greenwood Village: CO Lakeside: CO Mountain View: CO Edgewater: CO Lakewood: CO Applewood: CO Idledale: CO Genesee: CO Golden: CO East Pleasant View: CO West Pleasant View: CO Montbello: CO Twin Lakes: CO Welby: CO Sherrelwood: CO North Washington: CO Thornton: CO Westminster: CO Sheridan: CO Littleton: CO Columbine: CO Columbine Valley: CO Bow Mar: CO Ken Caryl: CO Centennial: CO Meridian: CO Inverness: CO Lone Tree: CO Dove Valley: CO Foxfield: CO Holly Hills: CO Highlands Ranch: CO Acres Green: CO Castle Rock: CO Parker: CO Castle Pines: CO Castle Pines Village: CO Stonegate: CO Grand View Estates: CO The Pinery: CO Dakota Ridge: CO Coal Creek: CO Louisville: CO Superior: CO Boulder: CO Eldorado Springs: CO Paragon Estates: CO Gold Hill: CO Tall Timber: CO Pine Brook Hill: CO Mountain Meadows: CO Sunshine: CO Altona: CO Seven Hills: CO Sugarloaf: CO Lazy Acres: CO Crisman: CO Gunbarrel: CO Valmont: CO Leyner: CO Lafayette: CO Erie: CO Broomfield: CO Federal Heights: CO Northglenn: CO Shaw Heights: CO

About Katherine Portenga

Katie K. Portenga is a dedicated REALTORĀ® committed to providing exceptional service to her clients in the Denver Metro area. With over 17 years of experience in the real estate industry, she has successfully closed more than $27 million in sales volume and completed over 27 transactions in the past year alone. Her outstanding performance has earned her recognition as a Top Individual Real Estate Producer by 5280 Magazine.

Katie's extensive knowledge of the Denver market, combined with her strong negotiation skills, allows her to effectively advocate for both buyers and sellers. She has built a reputation for integrity and hard work, resulting in numerous repeat clients who trust her expertise in navigating complex transactions.

As a long-time resident of Denver, Katie serves clients throughout the metropolitan area, from Castle Rock in the south to Aurora in the east, Golden in the west, and Boulder in the north. Her primary goal is to exceed client expectations, ensuring they feel confident referring her to family and friends.

Katie holds a Bachelor of Fine Arts degree from The University of Texas at Austin and has also studied at Boston University. Before transitioning to residential real estate, she gained valuable sales experience with Fortune 500 companies, including Xerox, Ethicon (a Johnson & Johnson company), and The Ritz-Carlton Club, where she honed her commitment to exceptional customer service.

Originally from South Texas, Katie was an accomplished sailboat racer, participating in regattas nationwide. After living in Austin, she relocated to Colorado in 2001 to embrace the mountain lifestyle, enjoying activities such as hiking, skiing, and biking. In her leisure time, she plays tennis, explores the outdoors, travels, and cherishes moments with her family and friends. Katie is a proud mother of two children, Lucy and Garrett, and has two dogs, George and Stetson. She is also an active supporter of The Logan School for Creative Learning.

For those looking to achieve their dream of homeownership or to sell their property for the best possible price, Katie K. Portenga is ready to assist. She is not only a knowledgeable real estate professional but also a trusted partner in navigating the Denver Metro real estate landscape.

**Achievements:**
- 5280 Black Diamond Individual Top Real Estate Producer
- Consistently ranked in the top 1% of Denver Realtors
- 27 homes sold in 2022, with prices ranging from $286,000 to $2.225 million
- 5280 Five Star Professional Award (2019-2022)
- Best of Zillow (2018, 2019)
- Platinum Club - Your Castle Real Estate (2018)
- Denver Metro Association of Realtors Excellence Award

Denver County, CO Real Estate Market Analysis (Single Family Homes)

$1,048,115
Avg. Listing Price
From Katherine's portfolio
3.6 / 2.9
Avg. Beds/Baths
Typical property size
2,546 sf
Avg. Square Footage
Interior living space
1906
Active Listings
Current inventory

Mortgage lenders, title companies, PropTech startups, recruiting firms, insurance providers, and continuing education companies rely on targeted outreach to connect with Denver County's active real estate professionals. Our verified email list of 8,933 actively licensed agents provides the precise contact data needed to build relationships, generate leads, and grow your business within this concentrated market of real estate decision-makers.

Whether you're launching a new mortgage product, recruiting top performers, or promoting insurance solutions, direct access to Denver County agents eliminates cold calling and guesswork. This verified database enables you to reach the right professionals with personalized messaging that drives responses and builds lasting business partnerships in Colorado's most active real estate market.

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Each monthly update removes inactive licenses, adds new agents, and verifies email deliverability through multiple validation processes. This rigorous quality control means your outreach campaigns avoid bounced emails, spam complaints, and wasted marketing spend that plague businesses using inferior data sources or outdated contact lists.

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Beyond email outreach, use this data for direct mail campaigns, phone prospecting, and LinkedIn connection strategies. Segment contacts by broker versus sales agent roles to customize messaging appropriately, or combine email outreach with targeted LinkedIn campaigns to increase response rates and build multi-channel relationships with Denver County's real estate professionals.

Why Denver County, Colorado Agent Data Matters

Denver County encompasses Denver city plus surrounding communities where these 8,933 licensed agents actively serve clients across diverse neighborhoods and price points. Unlike broad statewide campaigns that waste impressions on irrelevant markets, county-level targeting ensures your message reaches agents working in your specific service area, whether you're focusing on downtown Denver, residential suburbs, or commercial districts.

When you buy Denver County real estate agent email list data, you access the only vendor offering zip code level segmentation within the county, enabling hyper-local targeting impossible through other sources. This geographic precision helps mortgage lenders target specific lending territories, allows title companies to focus on their coverage areas, and enables service providers to concentrate marketing efforts where they can actually fulfill client needs.

Current Property Listings

As of 5/29/2026, Katherine Portenga has 2 properties for sale in Denver and surrounding areas.

$415,000

Listed 2026-05-12

762 Dexter St
Denver, CO  80220

Beds: 2.0
Baths: 1.0
Sq Ft: 793
Condo Map
View Full Details

$360,000

Listed 2026-03-04

2438 W 35th Ave Apt 3
Denver, CO  80211

Beds: 1.0
Baths: 1.0
Sq Ft: 539
Lot: 14,810 sf
Condo Map
View Full Details

$1,875,000

Listed 2026-04-09

1135 E Virginia Ave
Denver, CO  80209

Beds: 5.0
Baths: 4.5
Sq Ft: 3,412
Lot: 2,614 sf
Single Family Map
View Full Details

Current Property Rentals

Katherine Portenga currently has no rental properties available in Denver and surrounding areas. Check back later.