Weed Science Society of America
Donations deductibleWeed Science Society of America's network
28 people2 organisationsi28 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (28). Violet dotted lines (2) 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
28 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.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 21 voting members of its governing body on its latest Form 990 Part VI; we list 28 in Part VII (Part VII does not always name every voting member).| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Alan Helm | Director | 2022 | 4 yrs |
| Andrew Howell | Director As of 2/24 | 2024 | 2 yrs |
| Ben Sperry | Director Through 2/24 | 2023 | 3 yrs |
| Brett Miller | Director Through 2/24 | 2022 | 4 yrs |
| Carroll Moseley | Past President As of 2/24 | 2022 | 4 yrs |
| Chris Willenborg | Director | 2020 | 6 yrs |
| Christy Sprague | Director As of 2/24 | 2024 | 2 yrs |
| Darren Robinson | Director | 2023 | 3 yrs |
| Erin Burns | Director As of 2/24 | 2024 | 2 yrs |
| Greg Elmore | Treasurer Through 2/24 | 2019 | 7 yrs |
| Gregory Dahl | President | 2022 | 4 yrs |
| Hilary Sandler | President-Elect | 2018 | 8 yrs |
| Ian Burke | Vice President As of 2/24 | 2024 | 2 yrs |
| Isabel Werle | Director As of 2/24 | 2024 | 2 yrs |
| James Kells | Director | 2019 | 7 yrs |
| Jill Schroeder | Director | 2022 | 4 yrs |
| John Byrd | Director Through 2/24 | 2018 | 8 yrs |
| John Lindquist | Director | 2020 | 6 yrs |
| Kelly Backscheider | Company secretary | 2024 | 2 yrs |
| Lauren Lazaro | Treasurer As of 2/24 | 2022 | 4 yrs |
| Lynn Sosnoski | Director Through 2/24 | 2020 | 6 yrs |
| Mark Vangessel | Director | 2022 | 4 yrs |
| Michael Flessner | Director | 2022 | 4 yrs |
| Peter Dotray | Director As of 2/24 | 2024 | 2 yrs |
| Sara Ward | Director As of 2/24 | 2024 | 2 yrs |
| Sarah Kezar | Director Through 2/24 | 2022 | 4 yrs |
| Stanley Culpepper | Past President Through 2/24 | 2020 | 6 yrs |
| Steven Pyle | Director | 2022 | 4 yrs |
Officers and senior leadership
2 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 |
|---|---|---|
| Eric Gustafson | Executive Secretary | since 2018 |
| Lee Van Wychen | Director of Science Policy | since 2018 |
Pay and hours
year to 30 November 2024iFrom 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 |
|---|---|---|---|---|---|
| Lee van Wychen | Director of Science Policy | 40 | $152k | $9k | |
| Carroll Moseley | Past President As of 2/24 | 5 | $0 | ||
| Greg Elmore | Treasurer Through 2/24 | 5 | $0 | ||
| Gregory Dahl | President | 5 | $0 | ||
| Hilary Sandler | President-Elect | 5 | $0 | ||
| Ian Burke | Vice President As of 2/24 | 5 | $0 | ||
| Kelly Backscheider | Secretary | 5 | $0 | ||
| Lauren Lazaro | Treasurer As of 2/24 | 5 | $0 | ||
| Stanley Culpepper | Past President Through 2/24 | 5 | $0 | ||
| Alan Helm | Director | 2 | $0 | ||
| Andrew Howell | Director As of 2/24 | 2 | $0 | ||
| Ben Sperry | Director Through 2/24 | 2 | $0 | ||
| Brett Miller | Director Through 2/24 | 2 | $0 | ||
| Chris Willenborg | Director | 2 | $0 | ||
| Christy Sprague | Director As of 2/24 | 2 | $0 | ||
| Darren Robinson | Director | 2 | $0 | ||
| Erin Burns | Director As of 2/24 | 2 | $0 | ||
| Isabel Werle | Director As of 2/24 | 2 | $0 | ||
| James Kells | Director | 2 | $0 | ||
| Jill Schroeder | Director | 2 | $0 | ||
| John Byrd | Director Through 2/24 | 2 | $0 | ||
| John Lindquist | Director | 2 | $0 | ||
| Lynn Sosnoski | Director Through 2/24 | 2 | $0 | ||
| Mark Vangessel | Director | 2 | $0 | ||
| Michael Flessner | Director | 2 | $0 | ||
| Peter Dotray | Director As of 2/24 | 2 | $0 | ||
| Sara Ward | Director As of 2/24 | 2 | $0 | ||
| Sarah Kezar | Director Through 2/24 | 2 | $0 | ||
| Steven Pyle | Director | 2 | $0 | ||
| Eric Gustafson | Executive Secretary | 5 | $0 |
About
- Legal name
- Weed Science Society of America
- EIN
- 370911208
- Address
- 12110 Pecos St Ste 220, Westminster, CO, 80234-2052
- State
- Colorado
- Mission
- The weed science society of america promotes research, education, and extension outreach activities related to weeds; provides science-based information to the public and policy makers; and fosters awareness of weeds and their impacts on managed and natural ecosystems. (as filed on the Form 990)
- Activity (NTEE)
- C034 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
- 1956
- IRS ruling date
- 1 December 1968
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 7, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsHilary Sandler
≥8years on the filingsJohn Byrd
≥7years on the filingsGreg Elmore
≥7years on the filingsJames Kells
Latest return
year to 30 November 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 November 2024. US dollars, as filed.- Total assets
- $2.5m
- Total liabilities
- $76k
- Net assets or fund balances
- $2.4m
- Contributions and grants received
- $298k
- Program service revenue
- $468k
- Grants and similar paid out
- $218k
- Employees
- 1
- Volunteers
- 48
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2023 | $879k | $1m | Deficit $135k |
As filed on the IRS Form 990. US dollars.
Grants paid
2 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.| Recipient | Purpose | Amount |
|---|---|---|
| Southern Weed Science Society | Innovative grant | $52k |
| University of Georgia Research Foundation | Innovative grant | $35k |
State registration
1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.Weed Science Society of America likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
- State
- Colorado
- Entity type
- nonprofit corporation
- Status
- Good Standing
- Formed
- 13 December 2022
- Registered agent
- Eric Jay Gustafson (city and state not held)
This register does not publish officers or directors.