Six Sigma
Ranch & Winery
More than a winery.
Six Sigma Ranch is a historic 4,300-acre ranch winery in Lake County, where family, land, and wine come together through immersive outdoor experiences.
The Six Sigma Difference
Rooted in Family, Ranch, and Tempranillo
Nestled in the serene landscapes of Lake County, Six Sigma Ranch & Winery is a testament to the rich agricultural heritage and pioneering spirit of the region. Family-owned and operated, our 4,300-acre ranch was built by our family to be shared with yours - a place where great wine, open spaces, and genuine hospitality bring people together.
Known for producing exceptional Tempranillo along with a diverse portfolio of estate-grown wines, Six Sigma combines innovative vineyard practices with a hands-on approach rooted in generations of ranching tradition. From vine to bottle, every experience reflects our passion for creating memorable moments, celebrating the beauty of nature, and welcoming guests to experience the ranch as part of the family.
High-Elevation Vineyards
Our vineyards are rooted in volcanic soil in southern Lake County, producing grapes that are the essence of our award-winning wines.
Wild Landscapes
Immerse yourself in the beauty of our natural surroundings, perfect for exploration and relaxation. Guided hikes and bike rides monthly!
Handcrafted Wines
Each Six Sigma bottle is a reflection of our dedication to quality, thoughtfully crafted with care, passion, and a deep respect for the land.
Unique Dining Experiences
From ranch to table dinners to monthly Paella Night, each experience blends estate-grown flavors with the warmth of shared connection.
Wine Country
Huttopia’s North California eco-tourism camping project is located at Six Sigma Ranch.
Membership
Join the Six Sigma Experience
Membership is the best way to stay connected to Six Sigma Ranch - with exclusive wines, special events, and experiences that extend beyond your visit.
Benefits
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Preferred pricing on wines, including library and large-format selections
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Exclusive access to members-only events, dinners, and limited releases
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Complimentary tastings and discounted vineyard tours for you and your guests
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Access to explore the ranch, including private trails and outdoor experiences
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Added perks with local partners, including dining, stays, and regional experiences
Events at Six Sigma Ranch & Winery
From dining to outdoor exploration, our events offer memorable ways to experience the ranch.
Monthly Events
Join us throughout the month for recurring experiences that invite you to explore, gather, and enjoy the ranch.
Paella Night
First Wednesday of Every Month
Gather around the table for our signature Paella Night — a relaxed evening of great food, wine, and community.
Guided Ranch Hike
First Saturday of Every Month
Explore vineyards, hills, and wild terrain on a guided walk through the ranch.
Guided Bike Ride
Third Saturday of Every Month
Ride scenic routes across the ranch, combining adventure with unforgettable views
Seasonal & Special Events
From wine releases to curated dining experiences, these events offer deeper ways to connect with the ranch.
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Quarterly Pick-up Parties
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Reserve Tastings
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Ranch-to-Table Dinners
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Live Music & Special Events
For upcoming dates and reservations, visit Tock, follow along on social, or watch your email for invitations.
Linger Longer
Turn your visit into something more—where a tasting becomes a day on the ranch, and a day can easily become a weekend. From time on the trails to relaxed meals and open-air experiences, there are countless ways to explore, unwind, and take in the character and rhythm of Six Sigma Ranch.
Explore the Trails
Hike or bike through scenic ranch terrain on world class trails, maintained by Ninja Trail Works.
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Wine Tasting
Relax and enjoy a guided tasting experience at our historic tasting room, nestled in the center of the ranch under towering oaks trees.
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Charcuterie & BBQ
Enjoy a charcuterie board with artisanal meats, cheeses, crackers & spreads or use the BBQs at the tasting room to grill up some Six Sigma Ranch beef.
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Pinzgauer Tours
Explore the ranch with a guided tour in our refurbished 1970's Austrian military vehicle up to the Diamond Mine Vineyard.
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Private Events
Let us create a custom meal, tasting experience or private tour to help make your day even more special!
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Jack's Lavender Farm
Enjoy the seasonal blooms and help cultivate opportunity for Lake County teens.
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RV Camping
Dry camping in self-contained vehicles available for Six Sigma members and RV club members (Harvest Host, Good Sam, RV Overnights, CurbNTurf)
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Huttopia Glamping Resort
Where the magic of distinctive glamping meets the comfort of a unique retreat - right here at Six Sigma Ranch.
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Blue Zones
Six Sigma Ranch & Winery is Blue Zones Project Lake County approved - Live Longer Better!
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Our Story
Six Sigma Ranch carries a long and colorful history, shaped by generations of settlers, ranchers, and a few larger-than-life characters along the way - from covered wagons and cattle grazing to poker games that changed ownership of entire hillsides.
Today, that legacy continues under the care of Kaj and Else Ahlmann, who traded Denmark for California and have made the ranch their home since 2000. What began as a shared love for long walks in nature has grown into a life rooted in the land; stewarding vineyards, raising cattle, and creating a place where others can slow down and experience it for themselves.
Over the years, Six Sigma has grown into more than a winery - it’s become a gathering place for families, friends, adventurers, and wine lovers alike. Whether guests are sharing a bottle of Tempranillo on the patio, exploring the ranch’s scenic trails, or celebrating milestones together, the spirit of the ranch remains the same: authentic, welcoming, and deeply connected to the land that makes it all possible.
Our Wine
Six Sigma Winery was inaugurated on September 28th, 2005, when we processed our first grapes, a beautiful vintage of Tempranillo harvested in Christian’s Diamond Mine Vineyard. We focus on small lot, high quality wines, and every aspect of our winery reflects that, from state-of-the-art equipment to gentle handling and hand-sorting of the grapes, ensuring that only the best fruit is used in each of our wines.
What People are Saying about Six Sigma Ranch
"This is an ideal place to relax and unwind. The host is welcoming. You can explore all of the trails. Very quiet except for sounds of nature. The tasting and charcuterie were fun and delicious. Unlimited evening access to patios, bbqs, fire pit and decks was really special."
"The staff at Six Sigma are simply some of the nicest people you will ever meet. The owner Kaj is incredibly welcoming, and the property is gorgeous. Our RV spot was nicely secluded behind an old barn, had beautiful views, trail access and so peaceful. We even got to enjoy an special event featuring bubbles, burgers and beats. Can’t wait to go back!"
"Great food, good music, spectacular ranch, amazing wines. We came in the night before, camped, hikes, did a MTB ride and smashed a burger and washed it down with bubbles. Fantastic 24hrs. Oh yeah! Fed Topper acorns too…"