Mark Davis Cambria Net Worth: How to Verify Reliably

If you searched "mark davis cambria net worth," the person you are most likely looking for is Mark E. Davis, the chairman of Davis Family Holdings and one of the founding figures behind Cambria, the privately held quartz countertop company based in Le Sueur, Minnesota. This is not the same Mark Davis who owns the Las Vegas Raiders, and that distinction matters a lot before you trust any number you find online.

Which Mark Davis and Cambria are we actually talking about?

There are at least two high-profile Mark Davises who show up prominently in net-worth searches. The first is the NFL franchise owner whose Forbes real-time profile pegged his net worth at $3.3 billion as of March 12, 2026, based on his ownership of the Las Vegas Raiders and Las Vegas Aces. He has no connection to Cambria. The second is Mark E. Davis, born in 1941, who served as chairman of Davis Family Holdings and is directly connected to Cambria, the quartz countertop manufacturer. This Mark Davis also has ties to Davis Family Dairies, and the family engineered the $34 million purchase of Sun Country Airlines in 2011 as part of a broader portfolio strategy. He received the 2016 Horatio Alger Award, which identified him as "chairman, Davis Family Holdings" and confirmed the family's ownership of Cambria. That is the person this article is about.

You should also be aware that the word "Cambria" can appear in completely unrelated contexts: there is a Cambria, Pennsylvania (a county and several boroughs), a multifamily real estate property in Gilbert, Arizona, and business entities like Cambria Associates LLC that appear in court records with no connection to the quartz company. If you are researching a local businessperson named Mark Davis in Cambria County, Pennsylvania, that is a different search entirely and would require local property records and filings rather than the sources discussed here.

What "net worth" actually means here (and what it leaves out)

Net worth is total assets minus total liabilities. For a private family like the Davises, that includes the estimated market value of Cambria (the quartz company), any other business holdings, real estate, investments, and liquid assets, minus any debt those entities carry. What it does not include is salary or revenue figures, which are flow numbers, not balance-sheet numbers. It also does not capture assets that have never been independently valued or disclosed, which is a major issue when the core asset is a privately held company.

Because Cambria is privately held, there is no stock price to look up and no SEC filing to audit. That means every number you see for the Davis family's net worth is a modeled estimate. Forbes is explicit about this: it describes its figures as "estimated fortunes" tied to a specific snapshot date, not continuously audited valuations. When Forbes listed the Davis family at approximately $1.7 billion as of July 1, 2015, that figure was built from inferred private-company valuations, not from a publicly traded market price. Keep that in mind whenever you see a number cited confidently without caveats.

The sources actually worth using

For the Cambria-connected Mark Davis, your most reliable sources are a mix of business journalism, credible biographical databases, and industry filings. Here is what each type of source actually gives you:

The cleanest starting point is the Forbes "Mark Davis family" profile, which is distinct from the Raiders-owner profile. Pair that with Star Tribune's 2014 deep-dive ("From cows to quartz") and the Horatio Alger member detail page to confirm you are looking at the right person. Those three sources together give you identity, career context, and the best available wealth estimate in one pass.

How to build your own estimate from the evidence

When no audited figure exists, triangulation is your best tool. The method works by assigning values to each known asset and adding them up, then stress-testing the total against any debt signals you can find.

1. Start with Cambria's revenue and apply an industry revenue multiple. Cambria competes in the premium quartz surface market, which typically trades at 1x to 3x annual revenue in private transactions. If Cambria generates revenues in the hundreds of millions (consistent with its scale as a major U.S. quartz manufacturer), even a conservative 1.5x multiple on, say, $600 million in revenue suggests a business value around $900 million.
2. Add other named assets. The Davis family portfolio has included Davis Family Dairies and, at one point, Sun Country Airlines (purchased for $34 million in 2011). Sun Country was later sold, so check whether that asset is still in the portfolio before counting it.
3. Factor in real estate and liquid holdings. These are unquantified in public sources but are standard components of any high-net-worth family's balance sheet.
4. Apply a family-to-individual discount. The $1.7B Forbes estimate covers the entire Davis family, not Mark E. Davis alone. If ownership is spread across family members, his individual share depends on the family structure, which is not publicly disclosed.
5. Check for any debt signals. Large acquisitions like Sun Country are often leveraged. If Cambria Holdings carried debt for the deal, that reduces net equity accordingly.

This approach will not give you an audited figure, but it will give you a defensible range. Based on the available evidence, a reasonable personal estimate for Mark E. Davis, accounting for his role as chairman and a significant (but not necessarily 100%) ownership stake in a multi-hundred-million-dollar private enterprise plus ancillary assets, likely falls somewhere between $500 million and $1.5 billion. The Forbes family figure of $1.7 billion from 2015 is the most cited anchor, and it has not been publicly revised upward or downward in major financial journalism since then.

How his wealth was built: the timeline

Mark E. Davis's wealth story is rooted in agricultural processing and then pivoted sharply into manufacturing. The Davis family built a significant dairy business (Davis Family Dairies, later Davisco Foods) that became one of the larger dairy ingredient suppliers in the U.S. The whey processing side of that business was a direct precursor to Cambria, since whey protein concentrate became a profitable commodity, and the capital generated funded diversification.

Cambria was launched as a quartz surface company and grew into one of the few U.S.-based quartz countertop manufacturers competing against imported products. The brand differentiated on its American-made positioning and expanded its distribution significantly through the 2000s and 2010s. Mark Davis served as president and CEO until around 2012, when he transitioned to chairman and his son Jon took over day-to-day operations. His son Marty Davis later became CEO. That leadership transition is a meaningful data point for net-worth research: it signals the business was mature and institutionalized enough to operate with next-generation management, typically a marker of a scaled and stable private company.

The 2011 Sun Country Airlines acquisition for $34 million added a consumer-facing brand to the portfolio, broadening the Davis family's public profile significantly. The deal was executed through Cambria Holdings, the family's holding company structure. This kind of deal is useful for net-worth estimation because it establishes a floor: if the family could deploy $34 million in cash or credit on a single acquisition, their total liquidity and creditworthiness were already well into the hundreds of millions at that point.

By the time Forbes estimated the family at $1.7 billion in 2015, Cambria's quartz business was in a strong growth period alongside a U.S. housing and renovation boom. Whether the family wealth has grown, declined, or held since then depends on Cambria's performance through the 2020 to 2026 period, during which the home improvement market saw extreme swings. No major updated Forbes estimate or comparable profile has been published as of March 2026.

Dealing with conflicting numbers you'll find online

The biggest source of confusion is the other Mark Davis. Many sites that rank for "mark davis net worth" are actually returning the Raiders owner's $3.3 billion figure. If you see a headline saying "Mark Davis net worth $3.3 billion" without any mention of football or the Las Vegas Raiders, treat it as a mislabeled result. The distinction between the two Mark Davises is not always clearly flagged on net-worth aggregator sites, which often copy estimates without verifying identity.

For the Cambria-connected Davis, you will also encounter a range of figures across celebrity net-worth sites. These sites typically copy from each other and trace back to the single 2015 Forbes family estimate. You might see numbers like $800 million, $1.2 billion, or $1.7 billion depending on which site you land on. None of those figures are independently verified for 2026. The honest answer is that no public primary source has published an updated, methodology-backed estimate for Mark E. Davis's personal net worth since 2015.

When you see a range rather than an exact figure, that is usually more honest, not less. A site citing "$1 billion to $1.7 billion" is acknowledging the estimation uncertainty inherent in valuing a private company. An exact figure like "$1,200,000,000" without a methodology note should actually raise your skepticism more. Understanding how Forbes constructs its estimates helps you read those numbers with the right level of confidence.

How to check and update the number today

If you need the most current possible estimate as of March 27, 2026, here is the practical sequence to follow:

1. Search Forbes directly for "Davis family" and "Cambria" together, not just "Mark Davis," to avoid pulling up the Raiders owner's profile. Look for any America's Richest Families list entry for the Davis family.
2. Check Star Tribune and Minneapolis Star Tribune archives for any business reporting on Cambria's revenue, expansion, or leadership changes in 2024 or 2025. Business growth or contraction there directly moves the family's estimated wealth.
3. Look up Cambria's LinkedIn company page or any recent press releases for revenue milestones, plant expansions, or major partnerships. Private companies often release this kind of information for recruiting or press purposes, and it gives you scale signals.
4. Search Minnesota Secretary of State business filings for Davis Family Holdings and Cambria Holdings to confirm the entities are still active and to see any recent registered-agent or officer changes.
5. Check if any family member has appeared in philanthropic announcements or major real estate transactions, both of which can surface in local Minnesota business press and provide data points for the current portfolio.

If none of those steps surface a newer figure, the working estimate remains anchored to the 2015 Forbes family figure of $1.7 billion, adjusted qualitatively for the roughly 11 years of business activity since then. Given Cambria's growth trajectory and the general appreciation of U.S. manufacturing and real estate assets over that period, the family's total wealth has likely grown, but without a new primary-source figure, any specific updated number would be speculative.

The bottom line: Mark Davis of Cambria is Mark E. Davis, chairman of Davis Family Holdings, with an estimated family net worth of approximately $1.7 billion as last publicly reported by Forbes in 2015. His personal share of that figure depends on ownership structure that is not publicly disclosed. Other members of the Davis family are part of the same wealth pool, which is why family-level estimates are more common than individual ones for this particular Mark Davis. Use the Forbes family profile, Star Tribune business coverage, and Minnesota business filings as your primary verification tools, and treat any exact figure without a sourced methodology as a copied estimate rather than an independently verified fact.