Big Sioux Nursery Inc
Donations deductibleRevenue
$864k
year to 31 December 2025
Expenses
$568k
year to 31 December 2025
Total assets
$2m
$380 liabilities
Net assets
$2m
assets less liabilities
Directors and trustees
8
6.3y av
Staff
38
employees, year to 31 December 2025
Left since last filing
0
no seats appear to have opened
Officers and senior staff
3
named in Part VII
Big Sioux Nursery Inc's network
8 people1 organisationi8 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (8). Violet dotted lines (1) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
8 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 8 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Bonnie Schmidt | Company secretary | 2019 | 7 yrs |
| Casey Eisemann | Vice Preside | 2018 | 8 yrs |
| Dennis Clemens | President | 2018 | 8 yrs |
| John Finnegan | Region II | 2022 | 4 yrs |
| Katie Schultz | Region Vi | 2023 | 3 yrs |
| Lindsay Mader | Region Vii | 2019 | 7 yrs |
| Nicole Stahl | Treasurer | 2022 | 4 yrs |
| Robin Viestenz | Region IV | 2019 | 7 yrs |
Under 5 years5 to 6 years6 years or more
Officers and senior leadership
3 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Blaine F Martian | Exective Dir | since 2018 |
| Mark Kasten | Exective Dir | since 2021 |
| Nicole Stahl | Treasurer | since 2018 |
Pay and hours
year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Mark Kasten | Exective Dir | 40 | $67k | $8k | |
| Nicole Stahl | Treasurer | 40 | $55k | $10k | |
| Dennis Clemens | President | 0.2 | $0 | ||
| Casey Eisemann | Vice Preside | 0.2 | $0 | ||
| Bonnie Schmidt | Secretary | 0.2 | $0 | ||
| Jon Finnegan | Region II | 0.2 | $0 | ||
| Robin Viestenz | Region IV | 0.2 | $0 | ||
| Katie Schultz | Region Vi | 0.2 | $0 | ||
| Leslie Merrill | Region Vii | 0.2 | $0 |
About
- Legal name
- Big Sioux Nursery Inc
- EIN
- 460442973
- Address
- 16613 Sioux Conifer Rd, Watertown, SD, 57201-7538
- State
- South Dakota
- Mission
- Production of affordable shelterbelt trees for government agencies and nonprofit organizations. (as filed on the Form 990)
- Activity (NTEE)
- C194 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 6 (IRS master file code)
- Formed
- 1996
- Principal officer
- Mark Kasten (as named on the Form 990)
- IRS ruling date
- 1 April 1997
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2023
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsCasey Eisemann
≥8years on the filingsDennis Clemens
≥7years on the filingsBonnie Schmidt
≥7years on the filingsLindsay Mader
Latest return
year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.- Total assets
- $2m
- Total liabilities
- $380
- Net assets or fund balances
- $2m
- Contributions and grants received
- $0
- Program service revenue
- $950
- Employees
- 38