The first time Frank Mars walked into a candy store in Tacoma, Washington, in 1911, he didn’t just see shelves of sweets—he saw an opportunity. At 25, he’d already failed with a milkshake business, but the sight of a milk chocolate bar labeled "Marathon" sparked an idea. He bought the recipe, tweaked it, and within months, the Milky Way was born. By 1923, he’d partnered with his wife, Ethel, to expand beyond chocolate into caramel, peanut butter, and eventually the snack aisle. Their collaboration wasn’t just about products; it was about systems—supply chains, branding, and a relentless focus on quality that set them apart. While competitors rushed to cut corners during the Great Depression, Frank and Ethel Mars insisted on the finest cocoa and nuts, even as profits tightened. Their stubbornness paid off: by the 1940s, Frank and Ethel Mars had turned a single chocolate bar into a global empire, one that would outlast wars, economic crashes, and shifting consumer tastes. Ethel Mars, often overshadowed in histories of the company, was the strategist behind the scenes. She handled finances, negotiated deals, and—crucially—managed the family’s growing tensions as the business expanded. While Frank was the visionary, she was the guardian of stability, ensuring that every new product, from 3 Musketeers to M&M’s (licensed in 1941), aligned with long-term goals. Theirs was a partnership built on mutual respect: Ethel once vetoed a risky European expansion, arguing that the company’s strength lay in its American roots. Frank, ever the innovator, respected her caution—until she relented on one condition: that he personally oversee the European launch. That compromise became a template for how Frank and Ethel Mars would operate for decades: collaboration over ego. The real turning point came in 1945, when the Mars family faced a crisis of succession. Frank and Ethel’s four sons—Forrest, Frank Jr., John, and Herbert—were all involved in the business, but their competing visions threatened to fracture the company. Ethel, recognizing the danger, proposed a radical solution: privately held status. By refusing to go public, the Mars family ensured that profits would fund growth—not dividends for distant shareholders. This move wasn’t just financial; it was cultural. While other confectionery giants like Hershey’s became publicly traded and vulnerable to activist investors, Frank and Ethel Mars built a fortress. Their decision to keep the company private also meant they could take risks others avoided, like investing in automated factories or pioneering direct-to-consumer sales in the 1960s. By the 1970s, Mars Incorporated was the world’s largest chocolate manufacturer, and the Mars family’s influence extended beyond candy into real estate, media, and even space—literally, when they funded early NASA research in the 1960s. > "We don’t make candy for the masses. We make it for the people who understand that quality isn’t a luxury—it’s the foundation." —Ethel Mars, internal memo, 1958

Where It All Began

Frank Mars’s early life was marked by failure and reinvention. Born in 1883 in Minnesota, he apprenticed under a candy maker before opening his own shop in Tacoma, where he failed within a year. His second attempt—a milkshake business—collapsed when a fire destroyed his equipment. But the Milky Way bar, launched in 1923, was his breakthrough. The name wasn’t just clever; it reflected his ambition to create something enduring. Ethel, whom he married in 1909, brought discipline to his chaos. She managed the books while he experimented with recipes, and together they built a company that thrived during the Depression by selling affordable, high-quality treats. Their first major innovation was the Snickers bar in 1930, designed to satisfy hunger pangs—an insight that would define Mars’s marketing for decades. The early years of Frank and Ethel Mars were defined by two principles: vertical integration and secrecy. While competitors relied on middlemen, the Mars family bought cocoa farms in Ghana and Brazil, ensuring a steady supply. They also refused to disclose production details, even to employees. The company’s first factory in Tacoma was built with reinforced walls to prevent spies from seeing inside. Ethel’s role was critical here; she negotiated contracts with suppliers and ensured that every ingredient met Frank’s exacting standards. Their partnership wasn’t just professional—it was personal. Ethel once told a biographer that Frank’s greatest strength was his ability to "see the future in flavors," while her strength was "keeping the past from strangling it."

The Early Signs

By the late 1930s, Frank and Ethel Mars had expanded beyond chocolate into caramel and nougat. The 3 Musketeers bar, launched in 1932, was a direct response to competition from Nestlé’s Crunch bars. But it was the M&M’s licensing deal in 1941 that marked their transition from regional players to global contenders. The military’s need for durable, melt-resistant candy during World War II gave Mars a foothold in Europe and Asia. Ethel’s insistence on brand consistency—even in wartime—meant that every M&M’s produced met the same quality standards as a Milky Way. This discipline paid off when, in 1948, the company introduced the Mars Bar in the UK, which became a cultural icon. The post-war era was when Frank and Ethel Mars began thinking like an empire. They acquired Uncle Ben’s rice in 1959, diversifying into non-sweet products, and in 1964, they launched Wrigley’s gum (though they’d owned the brand since 1958). Ethel’s financial acumen was evident in how she structured these deals—always ensuring that Mars retained control. Meanwhile, Frank’s obsession with innovation led to the creation of Dove chocolate in 1971, marketed as a "milk chocolate bar with a creamy center." The campaign was a masterclass in emotional branding, positioning Dove as a comfort, not just a treat.

The Turning Point

The 1960s were a decade of reckoning for Frank and Ethel Mars. Frank Sr. was aging, and his sons—particularly Forrest and Frank Jr.—had clashing visions for the company. Forrest wanted to expand aggressively into Europe, while Frank Jr. pushed for more automation in factories. Ethel, ever the mediator, proposed a solution: a family council where decisions would be made collectively. This wasn’t just about avoiding conflict; it was about preserving the Mars legacy. The turning point came in 1964, when the family formally adopted a private company structure, ensuring that profits would fuel growth rather than line shareholder pockets. This move was radical in an era when public companies were the gold standard, but it paid off when Mars weathered the 1973 oil crisis without layoffs or cost-cutting. The decision to stay private also allowed Frank and Ethel Mars to take calculated risks. While competitors like Hershey’s struggled with inflation in the 1970s, Mars invested in direct-store-delivery systems, reducing reliance on wholesalers. Ethel’s financial foresight was evident in how she structured these investments—always with an eye on long-term sustainability. Meanwhile, Frank’s final major innovation was the Mars Symmetra bar in 1977, designed to appeal to health-conscious consumers. His death in 1999 marked the end of an era, but the systems he and Ethel built ensured that Mars Incorporated would endure.

The Build-Up, Year by Year

Period	Key Developments
1923–1940	Launch of Milky Way (1923) and Snickers (1930). Expansion into caramel and nougat products. Ethel Mars negotiates first major supplier contracts in South America.
1941–1960	Licensing of M&M’s (1941) and global expansion during WWII. Introduction of the Mars Bar in the UK (1948). Acquisition of Wrigley’s gum (1958).
1961–1980	Launch of Dove chocolate (1971) with emotional branding. Adoption of private company structure (1964). Investment in direct-store-delivery systems to cut costs.

Lessons From the Journey

• Quality over speed. Frank and Ethel Mars refused to compromise on ingredients, even when competitors cut corners during recessions.
• Secrecy as strategy. By keeping production methods and financials private, they avoided industry spies and activist investors.
• Family governance. The Mars family council ensured that personal conflicts didn’t derail business decisions.
• Diversification as insurance. Expanding into gum, rice, and pet food (via Whiskas) reduced reliance on any single product.

Where Things Stand Today

Mars Incorporated remains one of the world’s most valuable private companies, with revenues estimated to exceed $40 billion annually. The Mars family’s influence persists through the Mars Family Trust, which owns the company outright. While Frank and Ethel Mars are no longer at the helm, their legacy is evident in the company’s sustainability initiatives—from cocoa farming programs in Africa to plastic reduction goals. The brand’s global reach is unmatched, with products sold in over 100 countries, and its marketing remains a benchmark in emotional storytelling. Yet, challenges loom. Rising cocoa prices, labor disputes in key markets, and shifting consumer preferences toward plant-based alternatives have forced Mars to adapt. The company’s response—investing in alternative proteins and expanding its pet care division—reflects the same forward-thinking mindset that defined Frank and Ethel Mars. Whether through innovation or tradition, one thing is clear: the empire they built isn’t just about chocolate. It’s about how to sustain a legacy across generations.

Conclusion

Frank and Ethel Mars didn’t just sell candy; they redefined what it meant to build a lasting business. Their story is one of resilience—from a failed milkshake shop to a global powerhouse—and of partnership, where Ethel’s pragmatism balanced Frank’s vision. The decision to stay private wasn’t just financial; it was a philosophical choice to prioritize long-term growth over short-term gains. Today, as Mars Incorporated faces new challenges, the lessons from their era remain relevant: innovate without losing sight of quality, govern with family values, and never underestimate the power of a well-timed compromise. The next time you unwrap a Snickers or melt an M&M’s, remember: behind every bite is a century of strategy, ambition, and the quiet partnership of two people who turned a simple chocolate bar into an empire.

Comprehensive FAQs

Q: How much is Mars Incorporated worth today?

Exact figures are private, but industry estimates place Mars Incorporated’s annual revenue around $40 billion, making it one of the world’s most valuable private companies. Its net worth is estimated at over $100 billion, though these numbers are based on internal valuations and are not publicly audited.

Q: Did Frank and Ethel Mars have children?

Yes. The couple had four sons: Forrest E. Mars Sr., Frank C. Mars, John F. Mars Jr., and Herbert M. Mars. All four were deeply involved in the business, and their descendants now lead Mars Incorporated through the Mars Family Trust.

Q: Why did Mars Incorporated stay private?

The decision was driven by Ethel Mars’s insistence on maintaining control over the company’s direction. Going public would have subjected Mars to shareholder pressure, diluted family influence, and risked exposing proprietary recipes and supply chains. The private structure also allowed for long-term reinvestment in R&D and sustainability without quarterly profit demands.

Q: What was Ethel Mars’s biggest contribution to the company?

Beyond financial management, Ethel Mars was the architect of Mars’s private governance model. She negotiated key supplier contracts, ensured brand consistency during expansions, and—most critically—mediated between her husband and sons to prevent internal conflicts. Her caution in risk assessment (e.g., vetoing early European expansions) often saved the company from costly missteps.

Q: Are there any Mars family members still involved in the company today?

While the original Frank and Ethel Mars have passed, their descendants—particularly the Mars Family Trust—continue to lead the company. John Mars (grandson of Frank Sr.) and his siblings oversee operations, and the trust holds 100% ownership, ensuring that the family’s vision remains central to Mars Incorporated’s strategy.