Private vs Public: Why Some of the Biggest Brand Owners Aren't on Any Exchange

Mars owns M&M's, Snickers, Twix, Pedigree, Whiskas, Royal Canin, Ben's Original, Orbit, Extra, Skittles, and now Pringles. Mars is a $65 billion+ company. You cannot buy stock in it. Mars is privately owned by the Mars family, one of the wealthiest families in America with a net worth estimated at $117 billion by Forbes.

IKEA, Koch Industries, LEGO, and Patagonia are also private. Some of the biggest brand owners aren't on any exchange. They are owned by founders, families, or trusts. No ticker symbol. No SEC filings. No public shareholders. No stock to buy.

What Does "Private" Mean?

A private company has no shares trading on any exchange. No SEC filings (unless they choose to file). No ticker symbol. No public shareholders. Owned by founders, families, private equity, or venture capital.

For private companies, the ownership question often cannot be fully answered through public records alone. You cannot look up their financial statements on EDGAR. You cannot buy shares through a brokerage. You cannot see their quarterly earnings.

A public company, by contrast, has shares trading on an exchange. Anyone can buy shares. The company must file regular reports with the SEC. It has a ticker symbol. It is accountable to public shareholders and faces quarterly earnings pressure.

Mars: The Biggest Private Brand Owner

Mars Inc. is the largest private brand owner most consumers never think about. The company owns:

• Confectionery: M&M's, Snickers, Twix, Milky Way, Skittles, Dove
• Pet care: Pedigree, Whiskas, Royal Canin, Cesar, Banfield, BluePearl, VCA
• Food: Ben's Original (formerly Uncle Ben's)
• Gum: Orbit, Extra
• Snacking: KIND, Nature's Bakery

In December 2025, Mars completed its $36 billion acquisition of Kellanova, adding Pringles, Cheez-It, Pop-Tarts, Rice Krispies Treats, RXBAR, and Kellogg's international cereal brands to its portfolio. The deal was the biggest in the snacks sector and brought together brands from M&M's and Snickers to Pringles and Pop-Tarts. Mars paid $83.50 per share, a 44% premium to Kellanova's 30-trading-day volume-weighted average price.

Mars is headquartered in McLean, Virginia, in a nondescript building with no corporate logo. Forbes pegs the Mars family's net worth at $117 billion, exceeded in the US only by the Walton family at $267 billion. The company says being privately held allows it to make decisions for the long term without worrying about investors scrutinizing its earnings every quarter.

All private. No stock to buy. No IPO plans.

IKEA: The Private Furniture Giant

IKEA is owned by Inter IKEA Holding (Netherlands) and Ingka Group (Netherlands). Founder Ingvar Kamprad's family controls the structure. Revenue is approximately 45 billion euros or more.

IKEA's corporate structure is notoriously complex, designed to keep the company private and family-controlled. The structure involves foundations, holding companies, and licensing arrangements across multiple countries. No IPO plans. No public shareholders. No stock to buy.

Koch Industries: The Private Conglomerate

Koch Industries generates approximately $125 billion or more in revenue. Owned by Charles Koch and family. Brands include Georgia-Pacific (Brawny, Dixie, Quilted Northern, Angel Soft), Molex, and Invista (Lycra, Stainmaster).

Koch is the second-largest private company in the US by revenue. No SEC filings. No stock. Koch Industries is the biggest company most people have never heard of. Its products are in almost every American home, but you cannot invest in it.

LEGO: The Private Toy Giant

LEGO Group is owned by the Kirk Kristiansen family. Revenue is approximately 65 billion DKK or more. The family has maintained control for four generations. No IPO plans. No stock to buy.

LEGO is one of the most valuable brands in the world, and you cannot invest in it. The family has repeatedly stated that staying private allows them to think long-term and prioritize quality and creativity over quarterly results.

Patagonia: The Private Ethical Brand

Patagonia is owned by the Holdfast Collective, a trust established by founder Yvon Chouinard. In 2022, Chouinard transferred ownership of the company to the trust. "Earth is now our only shareholder," he said.

All profits go to environmental causes. No stock. No IPO. No public shareholders. Patagonia's structure is unique among major brands. It is a private ownership model designed for mission, not profit maximization.

Why Companies Stay Private

Six reasons explain why the biggest brand owners remain private:

1. Family control: Maintain decision-making power across generations. The Mars family has controlled Mars for over 100 years. The Kirk Kristiansen family has controlled LEGO for four generations. 2. No quarterly pressure: Private companies can invest for the long term without worrying about meeting quarterly earnings expectations. Mars can spend years developing a new product without explaining the delay to shareholders. 3. No disclosure requirements: Competitive information stays private. Mars does not have to reveal its profit margins, supply chain costs, or strategic plans to competitors. 4. No activist investors: No one can buy shares and demand changes. No Elliott. No Peltz. No pressure to break up or sell brands. 5. Mission-driven: Patagonia's environmental mission would be compromised by public ownership. Shareholders would demand profit maximization, not environmental maximization. 6. Size: Some companies are too big to need public capital. Mars generates $65 billion+ in revenue. It does not need to raise money from public markets.

Private companies do not file with the SEC, so the research process is different and the information is more limited. State business registries, DBA (doing business as) filings, and news archives are the primary tools for researching private companies.

Public vs Private Brand Owners

What This Means for Consumers

You cannot invest in Mars, IKEA, Koch, LEGO, or Patagonia. But you can understand who owns them and how they operate.

Private companies are not accountable to public shareholders. They are accountable to families, founders, or missions. This can be good: long-term thinking, no quarterly pressure, ability to invest in sustainability without explaining the ROI to Wall Street. Mars can spend decades building its pet care business. LEGO can prioritize quality over margin. Patagonia can donate all profits to environmental causes.

But it can also be bad: no public scrutiny, no shareholder activism, no transparency about financial performance or executive pay. If a private company makes bad decisions, there is no activist investor to force change. If a private company's products cause harm, there are no quarterly earnings calls where analysts ask tough questions.

The information to research brand ownership is freely available, but for private companies, it requires different tools: state business registries, DBA filings, news archives, and corporate websites. See our guide on how to research a parent company for a step-by-step process.

If you want to invest in the consumer goods sector but cannot buy Mars or LEGO, consider publicly traded competitors. You can buy Mondelez (MDLZ) instead of Mars. You can buy Mattel (MAT) or Hasbro (HAS) instead of LEGO. See our guide on how to invest in your favorite brands for practical steps.

FAQ

Can I buy stock in Mars? No. Mars is a privately held company owned by the Mars family. It has no ticker symbol, no SEC filings, and no public shares. Mars generated $65 billion+ in revenue in 2025 and completed a $36 billion acquisition of Kellanova. Despite being one of the largest consumer goods companies in the world, you cannot invest in it. Consider investing in publicly traded competitors like Mondelez (MDLZ) or Hershey (HSY).

Why is IKEA not publicly traded? IKEA is owned by Inter IKEA Holding and Ingka Group, both based in the Netherlands. Founder Ingvar Kamprad's family controls the structure through a complex network of foundations and holding companies designed to keep the company private and family-controlled. IKEA has no IPO plans and has never indicated interest in going public. The structure allows the family to maintain control and think long-term.

What is the biggest private company? Koch Industries is the second-largest private company in the US by revenue, with approximately $125 billion+ in annual revenue. It is owned by Charles Koch and family. Brands include Georgia-Pacific (Brawny, Dixie, Quilted Northern), Molex, and Invista (Lycra, Stainmaster). Cargill is the largest private company in the US by revenue. Mars is the largest private brand owner most consumers interact with regularly.

How do I research a private company? Private companies do not file with the SEC, so you cannot use EDGAR. Instead, check state business registries (where the company is incorporated), DBA filings, news archives (Bloomberg, Reuters, local business journals), LinkedIn (for subsidiary and employee information), and the company's own website. Private companies with over $10 million in assets and 500+ shareholders must file some reports with the SEC, but most large private companies stay below this threshold by keeping shareholders within the family.

Sources

• Mars Global: Mars Completes Acquisition of Kellanova (December 2025)
• Reuters: Mars' Biggest Deal Clinched by Secretive, Deep-Pocketed Family (August 2024)
• Reuters: EU Commission Clears Mars' $36 Billion Kellanova Deal (December 2025)
• Mars Global: Mars to Acquire the Kellanova Family of Snack Food Brands (August 2024)
• Forbes: America's Richest Families (Mars family, $117 billion)
• IsItPublic.com: Public vs Private Companies
• LegalClarity: Who Owns Who? How to Research Corporate Ownership