
Otter Tail Corporation
Otter Tail Corporation (OTTR) Number of Employees – History & Annual Headcount
Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.
SEC EDGAR · FMP · OTTR · as of Feb 18, 2026
Latest filing snapshot
Otter Tail Corporation (OTTR) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗
OTTR Employee Count
2009 – 2025 · Annual · SEC filingSource: SEC annual filings · Hover bar to view year data · Click to view original filing
Employees History
▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.
Related Companies — Employee Count
Diversified UtilitiesAbout OTTR employees
OTTR Employees · Headcount
Otter Tail Corporation (OTTR) employee data is sourced from the annual SEC 10-K filing. As of 2025, Otter Tail Corporation had 2,198 full-time employees globally. Full-time employees only. Global consolidated headcount.
Otter Tail Corporation employs 2,198 full-time employees as of the latest filing within the Diversified Utilities industry. Revenue per employee stands at $593,293, reflecting the company's operational efficiency.
Otter Tail Corporation's workforce increased by 65 (3.05%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.
Otter Tail Corporation's revenue per employee of $593,293 positions it among the notable performers in the Diversified Utilities sector for operational efficiency.
Frequently Asked Questions
OTTR Employees · 5 questionsAs of the latest SEC 10-K filing (2025), Otter Tail Corporation had 2,198 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.
▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-18