About Us

G7 Ranches is a Multi-Acreage Real Estate Team located in Tulsa, Oklahoma. G7 Ranches hangs it's hat with one of Oklahoma's leading real estate companies Coldwell Banker Select. G7 Ranches and Coldwell Banker Select's Land & Ranch Division offer full Real Estate brokerage services dedicated to Country Estates, Ranches, Recreational Ranches, Horse Ranches and Multi-Acreage Investment Properties. Since 2008, Coldwell Banker Select & G7 Ranches have sold over $500,000,000 in acreage sales and over 40,000 acres in over 20 Oklahoma Counties.

G7 Ranches is owned by Greg Ganzkow. Ganzkow started G7 Ranches in early 2004 and has grown the business into being the "Go To Guy" for some of Tulsa's leading businessmen. Greg also owns and operates his Quarter Horse ranch located 40 minutes south of Tulsa.

Success to Ganzkow is based on being happy! "I love the land that I sell. I enjoy the process involved in putting these deals together and the people that I meet in this industry. A mentor of mine once told me to find something I'd gladly do for free and get someone to pay me to do it. That's how I feel with what I do. We are strongly involved in a niche industry that is so much different than residential real estate. Instead of stop light to stop light and sub division to sub division we are traveling 40-50,000 miles a year to put these properties together. Not only that, they are generally a lot more complicated and you need proper representation when going after acreage."

Away from the land business, you will find Greg spending time with his girls. "We spend a lot of time with the horses and being up at the ranch in Osage County. Greg and his daughters are avid hunters and spend a lot of time in the outdoors. Central Osage County is a whole other side of Greg's life. "I would say that Pawhuska is my home away from home."

"Keeping Life Simple!" is the Moto for G7 Ranches... When you are ready to buy or sell land keep us in mind.

-Greg Ganzkow, G7 Ranches

Greg Ganzkow

Since 2004, Greg has been involved in all types of land deals, ranging from country estates, development land, recreational ranches, cattle ranches and farms. Currently, Ganzkow heads up the Land & Ranch Division for Coldwell Banker Select statewide. In 2013, Ganzkow & CB Select's Land & Ranch Division experienced their best year hitting over a $100 Million in sales and over 12,000 acres sold. Also, Ganzkow is the past President of the Oklahoma Realtor's Land Institute.


  • Roy Clark Ranch in Welch Oklahoma
  • $1,700,000 Million Recreational Ranch 40 minutes south of Tulsa, OK
  • $650,000 Wheeler Horse Ranch Mounds, OK
  • $1,242,000 Million Recreational Ranch Bristow, Oklahoma
  • $1,554,000 Million Lonewolf Ranch Haskell, Oklahoma
  • $1,200,000 Million Lomax Ranch Owasso/Collinsville, Oklahoma
  • $660,000 Barnhart Estate Mounds, Oklahoma
  • $2,200,000 Million Cherokee Spur Ranch Grand Lake, OK
  • $627,000 Fisher Ranch Beggs, OK
  • $1,525,000 Million 725 Acre Island Farm Muskogee, OK
  • $750,000 Wren Ranch Bristow, OK
  • $1,525,000 Reagan Hill Farm Estate Bixby, OK
  • $1,100,000 181 Estate Bixby, OK


  • 2008 & 2009 CB Select Land & Ranch Division Top Producer
  • 2010 Oklahoma RLI Board Member
  • 2010-2011 Oklahoma RLI Chapter President Elect
  • 2010 Took part as land professional before the Oklahoma Economic Development Committee
  • 2010 Realtors Land Institute Completed "Agricultural Land Brokerage and Marketing"
  • 2010 Realtors Land Institute Completed "Land 101: Fundamentals of Land Brokerage"
  • 2011 Realtors Land Institute Completed "Tax Deferred 1031 Exchanges"
  • 2012 Oklahoma RLI Chapter President
  • 2012 Realtors Land Institute Completed "Land Investment Analysis"
  • 2012 Coldwell Banker Select's Farm & Ranch Realtor of the year & Deal of the year
  • 2012 CB Select Land & Ranch Division Top Producer
  • 2013 Oklahoma RLI Board Member
  • 2013 & 2014 Coldwell Banker Select's Farm & Ranch Realtor of the year and Deal of the year


  • Realtors Land Institute
  • National Association of Realtors
  • Oklahoma Cattleman's Association
  • American Quarter Horse Association

Jim Van Sickle

Although I was born in Texas, I have called Oklahoma home for the past 30 years. The first 15 of those years I lived in Tulsa, and for the past 15, I have enjoyed living with my horses and dogs in Mounds, a growing area south of Tulsa.

I have been involved with real estate for the past 23 years. Prior to that, I worked in the broadcast arena, and if you want to go way back, after I got out of the Marine Corps   I was a deputy sheriff in Tarrant County Texas.

  • I am proud to have served in the United States Marine Corps
  • Member of Sapulpa Rotary Club
  • Past board of director of Home Builders Association of Greater Tulsa
  • Past board of director of Okmulgee Rural Water Board # 6
  • Member of American Quarter Horse Association
  • Lifetime member of American Paint Horse Association
  • Lifetime member of Missouri Fox Trotting Horse Breeders Association
  • Member of Oklahoma Cattlemen's Association
  • Member of Texas & Southwestern Cattlemen's Association
  • Member of Creek County Cattlemen's Association
  • Member of Okmulgee County Cattlemen's Association

If you are interested in selling your Home, Farm or Ranch please give me a call at 918-645-1188.

Clint Ramsey

Clint offers excellent experience in horse properties and country estates. Clint's life has revolved around the reining horse industry for the last 20 years. Thats where his work ethic comes into place. If your looking for a work horse behind your listing or help finding the right place, Clints your guy! Over the years Clint has excelled in international horse sales to some of the more prestigious people in the horse business. He has made a living representing big horse sales along with managing and running world class training barns. Call Clint today 918-704-3682

Clint's Involvements:

  • AQHA
  • NRHA

Malissa Costanza

Malissa's expertise is in country estates and horse properties and serves as Greg Ganzkow's personal assistant. She has a long history of being around performance horse facilities and grew up in a rural environment where she continues to live and raise her family. Malissa is involved with both NCHA and AQHA, as well as showing and raising cutting horses. Malissa joined G7 Ranches in early 2012. We are proud to have Malissa on board and look forward to her career with G7 Ranches!


       Pat Schulte

Pat Schulte

Pat Schulte has been selling ranches in Oklahoma since 2005. Pat specializes in Multi-Acreage transactions including Country Estates, Ranches, Investment Land and Recreational Properties. He has a family history of Real Estate transactions and grew up understanding, enjoying, buying and selling Real Estate.

Pat has dedicated his time to the “Beyond the City Limits Lifestyle†that he loves and lives today. Pat owns and operates a horse ranch about 30 minutes outside of Tulsa. Born and raised on a Farm in Rural America, 18+ successful years in Customer Service and Sales, 3rd Generation of Real Estate Family History, adds up to be a qualified Land & Ranch Realtor.

Pat is here to provide you with professionalism and integrity. Pat has the versatility to meet any customer's needs and will do the leg work that seems endless in the complicated world of real-estate, knowing that each transaction is unique. Pat's objective is to manage and monitor each transaction from start to finish with customer satisfaction number one in mind.

If you or someone you know is looking for Land or Ranch properties, contact Pat and he will be happy to consult with you about your Real Estate needs. If you have any questions, please don't hesitate to call.

Pat is actively involved in:
Oklahoma Cattlemen's Association

Specializing In: Oklahoma Cattle Ranches for Sale, Oklahoma Country Estates for Sale, Oklahoma Recreational Land for Sale. Referral Services Nationwide Realtors Land Institute, Kansas Land for Sale, New Mexico Land for Sale, Texas Land for Sale, Arkansas Land for Sale, Colorado Land for Sale.  We have been a leader in Northeast Oklahoma Luxury Estates for over 7 years with properties located in Tulsa County, Wagoner County, Okmulgee County, Creek County, Osage County, Washington County, Rogers County, Muskogee County.

Jay McCormick-  

Jay is our Photographer, Jay has been behind the camera for over 15 years and brings a lot to the table for our marketing campaigns.





Captain Jack

Rest of the G7 Gang