Undercroft Montessori School
How we got $3.3M
Based on IRS Form 990 (2025).
What we know
What they do
Undercroft Montessori School serves children from age 3 through 8th grade in Tulsa, Oklahoma. It describes itself as Tulsa's first and only Montessori school accredited through the American Montessori Society.
From the company's website. Industry: Child care.
Employees over time
▲ 50% since 2020Show as table
| Year | Source | Employees | Est. revenue |
|---|---|---|---|
| 2020 | PPP loan | 30 | $1.4M |
| 2020 | Form 5500 | 24 | $1.1M |
| 2021 | Form 5500 | 21 | $1.0M |
| 2022 | Form 5500 | 54 | $2.6M |
| 2023 | Form 5500 | 22 | $1.1M |
| 2024 | Form 5500 | 45 | $2.2M |
Participants are employees in the company's retirement plan at year end, from its Form 5500 filing with the Department of Labor. They usually run a little under total headcount (part-timers and new hires may not be eligible). Revenue and EBITDA apply this industry's revenue per employee and margin to each year's count.
Compared with similar businesses nearby
| Business | Est. revenue | Distance |
|---|---|---|
| UNDERCROFT MONTESSORI SCHOOL this business | $3.3M | — |
| PLAY AND LEARN PRESCHOOL, INC. Tulsa · 12 employees | $847K | 0.6 mi |
| PEACE ACADEMY Tulsa · 41 employees | $2.4M | 0.9 mi |
| Sheridan Kids Learning Center Tulsa | $784K | 1.4 mi |
| Sonya’s kids clubhouse Tulsa | $784K | 1.6 mi |
| Helping Hands Learning Center Tulsa | $784K | 1.6 mi |
| Heather's preschool Tulsa | $784K | 1.7 mi |
The full calculation
Figures are shown toward the upper part of their range rather than at its middle.
Brought up to date assuming revenue has grown 8% a year since 2020, when the PPP figures were reported; included above.
These are the business's own reported figures, from its IRS Form 990 filing, not an estimate. EBITDA applies the industry margin to reported revenue.
| Revenue range | $3.2M – $3.5M |
| EBITDA range | $379K – $419K |
| Industry (NAICS) | Child Care Services (624410) |
EBITDA margin: from IRS tax returns of S corporations in this industry (2019–2022), adjusted for company size: smaller companies typically run higher margins. EBITDA here is after owners' salaries.
Benchmarks: US Economic Census 2022, OK. PPP loans were sized on 2019–2020 payroll, so figures reflect that period. These are statistical estimates, not reported financials. Full methodology
People & advisors
“Undercroft Montessori School is a small, private school located in Tulsa, Oklahoma that was established in 1964.”
Advisors
- BankingBOKF, National AssociationPPP / SBA lender
From the company's own website and public filings (DOL Form 5500, IRS Form 990, SBA). Roles are as stated there and may be out of date.
Banking relationships
| BOKF, National Association PPP 2020 | All 2,399 borrowers → |
From PPP and SBA loan records, which name the bank but not the individual banker.
PPP loans
| Approved | Draw | Amount | Jobs |
|---|---|---|---|
| 4/6/2020 | first | $362K | 30 |
Public records
Matched to this business by name and address from public government data; a match can occasionally be wrong.
About Undercroft Montessori School
Undercroft Montessori School is a child care company in Tulsa, Oklahoma, in business since 1964. Its reported annual revenue is about $3.3M, with roughly $399K of EBITDA. It has about 45 employees.
Common questions
- Who owns Undercroft Montessori School?
- The owner of Undercroft Montessori School isn't in public records we've found yet. If you own or run the business, you can add or correct its details on SeeBITDA.
- How much revenue does Undercroft Montessori School make?
- Undercroft Montessori School reported revenue of about $3.3M.
- How many employees does Undercroft Montessori School have?
- About 45, from its 2024 retirement-plan filing.
- When was Undercroft Montessori School founded?
- Undercroft Montessori School has been in business since 1964.