Methodology
How MEC ranks contractors
See how operating history, public reviews, ratings, local relevance, and category fit work together.
Read moreResearch Process
How We Verify How Long a Contractor Has Been in Business
A founding year can sound simple until the company website, state registration record, and current legal entity point to different dates. MEC treats those dates as different pieces of evidence rather than forcing them into one number.
The core rule
We try to measure the history of the operating business, not merely the age of the current LLC or corporation.
Start with the contractor’s own history
We first look for a clear founding year, “since” date, company timeline, family-history page, or other direct statement from the contractor. An About page that explains who founded the business, where it operated, and how ownership continued is more useful than an isolated marketing badge with no context.
Check Wisconsin business records when relevant
Wisconsin Department of Financial Institutions records can show the legal entity name, effective date of initial registration, entity type, registered agent information, filing history, and current entity status. That makes DFI valuable for confirming the current legal structure and identifying possible reorganizations.
DFI is a filing registry, however. Its own guidance notes that the department does not certify whether a business is operating legally, and its database does not contain every form of business history.
Wisconsin DFI Corporate Records SearchDo not confuse legal-entity age with operating history
A business might begin as a sole proprietorship, later incorporate, reorganize as an LLC, change ownership structure, merge entities, or restore an older entity to good standing. Any of those events can create a state-record date that is much newer than the business customers recognize.
Example
Imagine a contractor whose documented company history begins in 1934, while the present corporation has a much later state-record date. MEC would not automatically rewrite the business as a newer company. We would look for evidence that the operating business actually continued across the legal-entity change, and we would keep the state record as a separate fact.
Look for corroborating public sources
When the company claim and state record do not tell the whole story, we look for supporting evidence such as manufacturer or dealer directories, BBB profiles, chambers, trade organizations, archived company material, or other established public business profiles. The goal is corroboration, not simply finding a second page that repeats the same unsupported claim.
Record the source and the uncertainty
MEC keeps a source note with the years-in-business figure. If the evidence supports “serving the Fox Valley since 1947,” we can use that operating-history claim while separately retaining the legal registration date. If evidence is weak or conflicting, the public profile should use more cautious language rather than pretending the uncertainty does not exist.
Use longevity as a signal, not a guarantee
Remaining in business for decades is meaningful, but it does not prove that every future project will go well. MEC therefore combines operating history with public rating, review volume, local relevance, and category fit when comparing contractors.
Why this matters for homeowners
A state registration date can answer the wrong question
If you are trying to learn whether a contractor has served a local market for fifty years, the creation date of its current LLC may not answer that. Conversely, a long-running brand name does not prove the current operator has the same history. Good research keeps those two questions separate.
MEC Research
Oldest contractors serving the Fox Valley
See the long-running businesses that stand out in the current cross-trade research set.
Read moreResearch note: MEC reviewed Wisconsin DFI business-entity guidance and corporate-record search documentation when preparing this page. Business records and company claims can change; individual contractor profiles should be treated as research snapshots.