In 15 of 19 Industries, the S Corporation Is the Most Common Kind of Employer. Only Four Break the Pattern.

Two thirds of construction employers are S corporations. More than three quarters of utilities are C corporations. The legal form a business ends up in has less to do with the founder’s preference than with the industry they walked into.

One form is the default nearly everywhere

Take the 19 industry sectors the Census Bureau publishes and ask, in each one, which legal form the most employers use. The answer is the S corporation in 15 of them. It is not close in most cases. Construction runs 66.4% S corporation against 13.4% C corporation. Professional and technical services run 64.0% against 18.6%. Health care, educational services and the arts all sit above fifty-five per cent.

The narrowest call anywhere in the file is retail trade, where S corporations lead C corporations by 2.2 points — 41.4% against 39.2%. Retail is also the largest sector by establishment count (1,032,493), so the single biggest industry in the country is the one where the two forms come closest to parity. Everywhere else the gap is wider. County Business Patterns counts establishments — single physical locations — that have at least one paid employee and an EIN. It excludes the self-employed with no employees, private-household and railroad employees, crop and animal production, and most government. So this is a census of employers, not of businesses: the 31 million Schedule C filers we looked at last week are almost entirely outside it.

The four that break the pattern have something in common

The exceptions are utilities (77.6% C corporation), management of companies — holding companies — (66.1%), information (52.4%) and finance and insurance (44.1%). Between them they are a small part of the employer count: utilities alone are 16,634 establishments against construction’s 813,726.

What the four share is that they are the industries organised around outside shareholders — regulated utilities, holding companies whose entire purpose is to own equity in other companies, and the two sectors that raise the most institutional and venture capital. The C corporation is the structure that accommodates outside investors, multiple share classes and a path to public markets. It should be said plainly that this is an interpretation of the pattern and not a finding in the data: County Business Patterns records which form each employer uses, and says nothing about why. What the file does establish is that the exception is narrow and specific, not general.

Where the unincorporated owner survives

Sole proprietorships are 9.9% of employers nationally, but they are not spread evenly. They are thickest in forestry, fishing and hunting (17.7%), other services — the sector holding repair shops, salons and personal services — (14.8%), and administrative and waste services (13.7%). They are thinnest in holding companies (1.9%), utilities (2.7%) and information (3.4%).

Partnerships follow a different logic again and cluster tightly: 23.6% of accommodation and food services employers and 20.9% of real estate employers are partnerships, against 12.2% nationally. Restaurants and property are the two businesses people most often go into with someone else’s money and someone else’s name on the door, and the legal form follows.

Two thirds of construction employers landed on the same legal form. That is not two thirds of founders independently reasoning their way to the same answer. That is convention.

What this is actually telling you

The uniformity is the finding. If the legal form were mainly a matter of individual circumstance, the sector figures would sit near the national average with a bit of scatter. Instead they range from 12.9% to 66.4% on the S-corp share alone — a spread of more than fifty points — and the sectors sort into recognisable groups: owner-operated trades and professions in one, capital-intensive and investor-owned industries in another.

There is no LLC line in any of this. Census assigns legal form from administrative records — that is, from how a business files its taxes — and its published categories are C corporation, S corporation, sole proprietorship, partnership, non-profit, government and other. An LLC is a state registration, not a federal tax class, so an LLC appears in this data as whatever it elected to be taxed as. So read these shares as tax elections, not as a verdict on how anyone registered with their state. The useful question this data can answer is a narrow one: whether your structure is normal for the industry you are in. Usually it will be. Where it is not, that is worth a conversation with an accountant who works in your sector rather than a general one — because the pattern here is not really about law, it is about who your advisor’s other clients are. The national picture, and how form tracks headcount, is the other half of this.

Published by The Lonely Entrepreneur — the community and coaching platform for entrepreneurs who are building alone. lonelyentrepreneur.com

This article is for educational purposes and is not a substitute for professional financial or legal advice.