Every new Connecticut business filing, every dayNew Businesses Filed in Plainville, CT
358 newly registered businesses tracked in Plainville, Connecticut. Browse by category or see the latest filings below.
Updated November 10, 2026 · Most recent business filing Sep 22, 2026
Every new Connecticut filing, every day
See how it worksAbout New Plainville Businesses
Plainville, CT has 358 newly registered businesses in our database. 11 of those landed in the past 30 days. We refresh this page daily as new Plainville companies appear in the Connecticut Division of Corporations records.
The most active industries in Plainville are Real Estate Development (4), Cleaning Services (4), and Holding Company (4). Use the category list below to narrow the results to a single industry, or scroll down for the most recent records of any type.
Every entry shows the business name, filing date, and category, plus verified owner and contact information where we have it. The latest Plainville business filing was recorded on Sep 22, 2026. You can jump back to the full Connecticut view any time to compare Plainville against other markets.
Plainville New Business Data
In October 2026, DayOneLead tracked 13 new business filings in Plainville, down 46% from September 2026 and down 26% against the prior six-month average of 18.
That is 0.3% of the 4,109 business filings tracked statewide in Connecticut that month.
The U.S. Census Bureau counted 5,353 new business applications in Connecticut in September 2026, 1,377 of them high-propensity (likely to become employers).
New business filings tracked per month
| Month | business filings |
|---|---|
| November 2025 | 14 |
| December 2025 | 16 |
| January 2026 | 11 |
| February 2026 | 14 |
| March 2026 | 19 |
| April 2026 | 19 |
| May 2026 | 14 |
| June 2026 | 19 |
| July 2026 | 15 |
| August 2026 | 15 |
| September 2026 | 24 |
| October 2026 | 13 |
| November 2026 (month to date) | 1 |
Counts of business filings DayOneLead collected from the Connecticut Division of Corporations, starting November 2025 when our feed became complete. The lighter bar is the current month to date.
Census business applications in Connecticut
| Month | Census applications | High-propensity | Statewide tracked |
|---|---|---|---|
| Sep 2026 | 5,353 | 1,377 | 4,391 |
| Aug 2026 | 4,294 | 1,173 | 4,132 |
| Jul 2026 | 5,422 | 1,449 | 4,288 |
| Jun 2026 | 4,473 | 1,220 | 4,401 |
| May 2026 | 4,432 | 1,225 | 4,442 |
| Apr 2026 | 6,099 | 1,686 | 4,721 |
Census Business Formation Statistics count applications for an employer identification number, not seasonally adjusted. They run ahead of state registrations and include sole proprietors that never file with the state, so the two series measure different steps of starting a business.
Websites and domain age
Based on 174 business filings from Oct 2025 to Aug 2026, with domain registration dates from public WHOIS/RDAP records for 58 of them. The latest two months are left out because websites are often found weeks after a filing. A domain much older than the filing usually means an existing operation formalizing, not a brand-new idea.
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Frequently Asked Questions
How many new businesses are registered in Plainville, CT?
DayOneLead tracks 358 newly registered businesses in Plainville, with about 11 added in the last 30 days.
How fresh is the Plainville business data?
We refresh this page every day from the Connecticut Division of Corporations. The latest Plainville business filing we recorded was on Sep 22, 2026.
What are the most common new businesses in Plainville?
The most active industries among new Plainville registrations are Real Estate Development, Cleaning Services, and Holding Company. You can filter by any category to narrow the list.
What information is included for each Plainville business?
Each entry shows the business name, filing date, and category, plus a verified owner name, phone, email, and website wherever we can confirm them.
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