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Nonprofit · EIN 92-0129853

PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE

Also known as PRINCE WILLIAM SOUND SCIENCE CENTER

Tax-exempt · CORDOVA, AK 99574

Financials

$9.9M$6.5M2022$6.8M$6.2M2023$6.9M$7.3M2024
Revenue Expenses · by fiscal year end
Financials of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
September 30, 2025990$6,895,720$7,327,647-$431,927$28,593,503$1,693,115$26,900,388
September 30, 2024990$6,787,184$6,173,992$613,192$28,461,596$1,199,338$27,262,258
September 30, 2023990$9,909,544$6,535,093$3,374,451$28,006,238$1,515,749$26,490,489
Financial details: 990 for the year ended September 30, 2025

Revenue

Contributions, gifts and grants
$6,098,208
of which government grants
$5,532,314
Program service revenue
$399,926
Investment income
$98,731
Net rental income
$85,900
Net gain from sales of assets
$46,741
Net income from fundraising events
$210,043
Net income from sales of inventory
$2,912
Other revenue
$298,855

Expenses

Grants and similar amounts paid
$605,052
Compensation of officers, directors and key employees
$213,863
Other salaries and wages
$1,269,191
Salaries, compensation and benefits (total)
$2,139,176
Professional fundraising fees
$0
Legal fees
$10,994
Accounting fees
$47,375
Occupancy
$136,274
Travel
$231,337
Depreciation
$751,879
Program services (functional)
$6,044,130
Management and general (functional)
$1,193,643
Fundraising (functional)
$89,874

Balance sheet and other

Total assets, start of year
$28,461,596
Total assets, end of year
$28,593,503
Total liabilities, end of year
$1,693,115
Net assets, end of year
$26,900,388
Land, buildings and equipment
$23,413,954
Publicly traded securities
$1,504,185
Net assets without donor restrictions
$26,698,469
Net assets with donor restrictions
$201,919
Gross receipts
$7,163,623
Employees
47
Volunteers
32
Year formed
1989
State of legal domicile
AK

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended September 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Katrina HoffmanCEO
Officer
40$129,672$56,256
W Scott PegauOSRI Director36$115,544$53,549
Peter RandScientist40$102,932$52,648
Robert CampbellOceanograher40$129,374$22,754
Linnea RonnegardFinance Direct.
Officer
11$25,490$2,803
Chris RurikDirector
Trustee or director
1$0$0
Craig TilleryDirector
Trustee or director
1$0$0
Peter AndersenDirector
Trustee or director
1$0$0
Jacques WhiteDirector
Trustee or director
1$0$0
Walter WredeDirector
Trustee or director
1$0$0
Robin ReichDirector
Trustee or director
1$0$0
Scott HicksDirector
Trustee or director
1$0$0
Mead TreadwellDirector
Trustee or director
1$0$0
Douglas CauseyDirector
Trustee or director
1$0$0
Todd TeleszChairman
Trustee or director, Officer
2$0$0
4 more people on this return
NameTitleHours / weekCompensation
Robyn McGhee1st Vice Chair
Trustee or director, Officer
2$0
Katherine Dugan2nd Vice Chair
Trustee or director, Officer
2$0
Thea ThomasTreasurer
Trustee or director, Officer
2$0
Tommy SheridanSecretary
Trustee or director, Officer
2$0
990 for the year ended September 30, 2024: 17 people
NameTitleHours / weekCompensationOther / benefits
Katrina HoffmanCEO
Officer
55$114,063$59,855
W Scott PegauOSRI Director40$81,795$71,290
Robert CampbellOceanograher40$104,554$22,640
Linnea RonnegardFinance Direct.
Officer
9$41,507$32,462
Chris RurikDirector
Trustee or director
1$0$0
Craig TilleryDirector
Trustee or director
1$0$0
Peter AndersenDirector
Trustee or director
1$0$0
Jacques WhiteDirector
Trustee or director
1$0$0
Walter WredeDirector
Trustee or director
1$0$0
Robin ReichDirector
Trustee or director
1$0$0
Scott HicksDirector
Trustee or director
1$0$0
Mead TreadwellSecretary
Trustee or director
1$0$0
Douglas CauseyDirector
Trustee or director
1$0$0
Todd TeleszChairman
Trustee or director, Officer
2$0$0
Robyn McGhee1st Vice Chair
Trustee or director, Officer
2$0$0
Katherine Dugan2nd Vice Chair
Trustee or director, Officer
2$0$0
Thea ThomasTreasurer
Trustee or director, Officer
2$0$0
990 for the year ended September 30, 2023: 17 people
NameTitleHours / weekCompensationOther / benefits
Katrina HoffmanPresident & CEO
Officer
55$125,884$43,936
W Scott PegauOSRI Program Manag40$104,747$42,668
Robert CampbellOceanographer40$107,961$20,331
Linnea RonnegardFinance Direct.
Officer
40$84,278$23,635
Jacques WhiteDirector
Trustee or director
1$0$0
Walter WredeDirector
Trustee or director
1$0$0
Robin ReichDirector
Trustee or director
1$0$0
Todd TeleszChairman
Trustee or director, Officer
2$0$0
Scott HicksDirector
Trustee or director
1$0$0
Katherine Dugan2nd Vice Chair
Trustee or director, Officer
1$0$0
Douglas CauseyDirector
Trustee or director
1$0$0
Mead TreadwellDirector
Trustee or director
1$0$0
Chris RurikDirector
Trustee or director
1$0$0
Tommy SheridanSecretary
Trustee or director, Officer
1.5$0$0
Thea ThomasTreasurer
Trustee or director, Officer
1.5$0$0
Robyn McGhee1st Vice Chair
Trustee or director, Officer
1$0$0
Peter AndersenDirector
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
PO BOX 705, CORDOVA, AK 99574-0705
Principal officer (990 for 2024)
Katrina Hoffman, PO Box 705, Cordova, AK 995740705
Signed the 990
Katrina Hoffman, CEO
Phone
(907) 424-5800
Return prepared by
ALTMAN ROGERS & CO

Mission

The Prince William Sound Science and Technology Institute (d.b.a. Prince William Sound Science Center) (the Center) was formed in 1989 as an Alaska not-for-profit scientific research and education corporation to contribute to the comprehensive description, sustained monitoring, and ecological understanding of Prince William Sound, the Copper River, and Gulf of Alaska. Establishment of the Center followed the Exxon Valdez oil spill, although planning of this institution preceded that event. The underlying philosophy of the Center is to serve as a model for long-term ecosystem management.

990 for the year ended September 30, 2025

Program accomplishments

  • Exxon Valdez Oil Spill Trustee Council Programs:Gulf Watch AlaskaThe Exxon Valdez Oil Spill Trustee Council (EVOSTC) is supporting a long-term monitoring program in the Gulf of Alaska region affected by the 1989 Exxon Valdez oil spill. The monitoring program, called Gulf Watch Alaska, involves more than 25 scientists from multiple agencies, universities, and non-profits and seeks to provide data to identify and help understand the impacts of multiple ecosystem factors on the recovery of injured resources. This program is expected to be 20 years in length but is planned and funded in five-year increments. It builds a legacy of restoration research and monitoring by the EVOSTC and federal and state agencies dating back to 1989. The program includes sites in Prince William Sound, lower Cook Inlet, the Gulf of Alaska, and the outer Kenai Peninsula coast. This year has an overlap between two five-year segments. Mariculture ReCon The Exxon Valdez Oil Spill Trustee Council (EVOSTC) is supporting a mariculture research program. The overall objective of the Mariculture Research and Restoration Consortium (Mariculture ReCon) is to support resporation, habitat enhancement, and economic development through research and partnerships between scientists and seaweed and shellfish farmers. This suite of applied research components takes a farm-centered approach to address EVOSTC restoration, economic development, outreach, administration, and data management interests that overlap top priorities identified by stakeholders and the Alaska Mariculture Development Plan Developed by the Governors Mariculture Task Force. Results will inform shellfish and seaweed production with farmers as full participants in the research.
    Expenses $3,494,711
  • Government Programs:EVOSTC New FacilitiesThe Exxon Valdez Oil Spill Trustee Council is supporting the development of new facilities for the Prince William Sound Science Center. The new facilities include warehouse, office, and research and education spaces. Over $23 million has been pledged to cover costs associated with the new campus. The funds are being administered by the Alaska Department of Commerce, Community, and Economic Development. CORaL NetworkThe Exxon Valdez Oil Spill Trustee Council is supporting an education and outreach program titled, Community Organized Restoration and Learning [CORaL] Network. The purpose is to create and maintain an ongoing framework that builds the capacity of existing resources withing the Exxon Valdez Oil Spill impacted region to ensure that current scientific information, skills, and activities are publicly accessible and serve ongoing needs as identified by local communities. These funds are being administered by the Alaska Department of Fish and Game.BSEE Herder/BurnerThis is a Joint Industry Program that uses funding from OSRI, ExxonMobil, Shell, Bureau of Safety and Environmental Enforcement, and Clean Caribbean Americas for the development of new oil spill response technology. A remotely operated surface vessel is being developed that can apply chemical herders and ignite herded slicks for in-situ burns. The system will carry remote sensing capabilities and can be controlled locally or through a satellite link.AOOS - Alaska Ocean Observing SystemThis project, funded by NOAA via the Alaska Ocean Observing System, continues implementation of the Prince William Sound (PWS) Observing System (PWSOS). The PWSOS collects ocean, atmospheric and biological observations for use by stakeholders. PWSOS supported tracking of marine organisms using the passive acoustic Ocean Tracking Network, salinity measurements at the Cordova tide station, and the maintenance of the SNOTEL meteorological stations. AOOS Intuitive model-driven particle tracking toolsA team of researchers is developing a particle tracking tool that can be overlayed on oceanographic circulation models to allow users to visualize trajectories of drifters, disabled ships, oil spills, and larvae. The focus is connecting the tools to the Cook Inlet Operational Forecast System model used by NOAA.AKSSF Run timing, spawning distribution, and survival of Copper River sockeyeThe Alaska Sustainable Salmon Fund provided support to radio tag sockeye salmon traveling up the Copper River. The tags were detected at towers along the river and using aerial surveys. The aerial surveys allowed the determination of the final spawning grounds based on the time the fish entered the system and were tagged.NPRB - Automation of Sockeye Salmon Scale EstimationThis project examines the ability of using machine vision and deep learning to automate the reading of Sockeye Salmon scales to determine their age. Automation has the potential to improve management of salmon fisheries. Precise age information is critical to the evaluation of escapement goals, the generation of pre-season forecasts, and the long-term monitoring of population structure.NPRB Seabird use of spatially-predictable tidal ripsThis project adds a bird and mammal component to a physical oceanography project that is separately sponsored by BOEM. The purpose is to discover if birds and mammals are preferentially using tide rips in Cook Inlet. By understanding how birds and mammals use oceanographic features we can better predict potential impacts of oil spills.NOAA Climate adaptation and resilienceThis project addresses the critical need for fishing communities in the Gulf of Alaska to formalize fisheries resilience strategies in adaptation plans, focusing on three of the most highly dependent and divers fishing communities in the region Cordova, Kodiak, and Sitka. The project will advance integrated scientific research and build partnerships between scientists, fishermen, Tribes, and Tribal citizens to enhance local planning capacity and responsiveness to climate change.BOEM Cook Inlet Physical OceanographyWith support from the Bureau of Ocean and Energy Management this project is pulling together the existing data from Cook Inlet, modeling factors that affect circulation, and make field measurements as needed to fill gaps identified in the analysis of the existing data.NPS Examining the health metrics of sockeye salmonThis project supports a UAF led project. It collects tissue samples and energetics estimates from Copper River sockeye salmon. In collaboration with UAF it helps to analyze the data and supports energetic modeling efforts.USFWS Aleutian TernThe Aleutian Tern Technical Committee working group is undertaking a project to determine the current distribution and abundance of Aleutian terns at a statewide scale. This project uses aerial surveys to identify current breeding colonies, and on-the-ground access to estimate tern abundance.PSMFC Empowering coastal Alaska by building local capacity for kelp farmingThis project strives to increase seaweed mariculture success by addressing market development, science-backed information on best practices, and local capacity in collaboration with local mariculture farms and biologists. There is a focus on best practices for collecting and growth of seed stock.EDA Seaweed nursery expansionThis program provides equipment needed to allow PWSSC serve as a nursery facility for local seaweed mariculture operations.EPA Drying SeaweedThis program provided funding to support a proof of concept project to dry seaweed using waste heat. The project would also build community resilience for food security and economic diversity in PWS, AK.NPRB Zooplankton WorkshopFunding to support travel, facility costs, and other meeting costs associated with the Zooplankton Workshop. SEC/AMC - Kelp Seed This project will be conducted in Cordova and Kodiak and provide a comparison of the genetic diversity of bull kelp populations in two important regions for Alaskan kelp farming. The results of this project will clarify 1) whether alternative seeding methods better preserve the genetic diversity of Alaskan kelps and 2) whether alternative seeding methods have the potential to increase the quality of cultured seaweeds.USGS Aerial SurveyAerial survey validation in conjunction with the Prince William Sound Science Center Herring Research and Monitoring Program. This involves working from a vessel while a spotter pilot in an airplane directs (via radio) the vessel to a school of fish, then deploying fishing gear to sample fish in the school.
    Expenses $1,085,165 · revenue $177,018
  • Oil Spill Recovery Institute Programs:Oil Spill Recovery Institute (OSRI)This program funds the administration and awards of the Oil Spill Recovery Institute, a federally established program to support research, education, and demonstration projects designed to respond to and understand the effects of oil spills in Arctic and sub-Arctic marine environments. Initiated in 1997, funding is provided directly from the interest earnings on a $35.3 million principal allocationadministered by the U.S. Coast Guard (from the National Oil Spill Liability Trust Fund). The Institute is governed by an Advisory Board which includes representatives from Federal and State agencies, Alaska Native and PWS communities, and industry representatives appointed by the Governor of Alaska. The Advisory Board Chair is a U.S. Department of Commerce representative.PWSSC OSRI Program ManagerThe OSRI Program Manager supports OSRI by identifying research needs, working with the Work Plan Committee to develop annual work plans, and track progress on contracts. The Program Manager also interfaces with other research efforts to share the information learned by OSRI.PWSSC H2O Headwaters to Ocean Program & Education ProgramThe H2O Headwaters to Ocean Program is the umbrella under which all our education and outreach efforts occur. This program has four primary components this year: (1) the Discovery Room, a program which supplements elementary school science education; (2) Secondary School Outreach, programming designed to keep older students engaged in marine science-centric activities that promote critical thinking, problem solving and ecological literacy; (3) Outreach Discovery to support delivery of STEM education programming to audiences outside of Cordova; (4) Mini Discovery, such as Seq Squirts and Little Dippers, are designed to engage youth who are not yet school age in hands-on activities. Headwaters to Ocean is funded in large part by OSRI. Other funding comes from ConocoPhillips Alaska, Saltchuk, Boeing, iindividual and small business donations, foundations, and program fees.PWSSC Herder/BurnerThis is a Joint Industry Program that uses funding from OSRI, ExxonMobil, Shell, Bureau of Safety and Environmental Enforcement, North Caspian Operation Company, and Clean Caribbean Americas for the development of new oil spill response technology. A remotely operated surface vessel is being developed that can apply chemical herders and ignite herded slicks for in-situ burns. The system will carry remote sensing capabilities and can be controlled locally or through a satellite link.
    Expenses $917,701 · grants $605,052
  • Other Programs: CommunicationsPWSSC maintains a communications program to outreach the research and education efforts and maintain awareness of our activities to our members. This program is responsible for maintaining our website, producing the Delta-Sound Connections paper, and the Breakwater newsletter among other things. Lectures on the area and the Science Center activities are provided to cruise patrons and other interested parties.Hydroponic FarmPWSSC was able to purchase an established hydroponic farming facility to develop a capacity for providing greater regional resilience through food security of items normally shipped into the community.PWSRCAC Marine BirdsPrince William Sound Regional Citizens Advisory Council funded PWSSC for winter surveys of marine birds in Prince William Sound. The funding allows for winter marine bird surveys along the tanker lanes to identify their presence outside of the summer season when most surveys occur.PWSRCAC Weather BuoyThe Prince William Sound Citizens Advisory Council funded PWSSC to assemble and deploy two weather buoys in the Port of Valdez. These buoys provide weather information necessary to understand potential oil spill trajectories.U-Mass Avian FluSamples are being collected for the University of Massachusetts to detect if avian flu is present in the Cordova area.NMSU Autoanalyzer Sale of surplus equipment parts. Lynker NOAA BuoyFunding to cover costs associated with the recovery of buoys from Cape Hinchinbrook and Montague Straight. NSB Chum SalmonService contract for costs associated with the collection of chum salmon otoliths from two regions within the Prince William Sound on behalf of North Slope Borough. PEW/ESSA KelpFunding to lead research, engagement, and written contributions with respect to the Alaskan seaweed aquaculture sector.Chinook SalmonSalmon field and lab studies related to the Long Lake Weir operations and the sockeye nursery lake. Other Grants / ContractsMiscellaneous PWSSC projects noted in the audit schedules. Funding from PWSSC enterprise Dept. for the R/V New Wave and diving activities, along with miscellaneous funding for project research and education activities.
    Expenses $546,553 · revenue $225,820

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025September 30, 2026February 16, 2027Not due yet
2024September 30, 2025February 17, 2026990 on file
2023September 30, 2024February 18, 2025990 on file

IRS record

EIN
92-0129853
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1994
Accounting year ends
September
Files
Form 990 or 990-EZ
Assets (IRS master file)
$28,593,503
Income (IRS master file)
$7,163,623

Filing history

FormYear endedRevenueExpensesAssetsReturn
990September 2025$6,895,720$7,327,647$28,593,503XML
990September 2024$6,787,184$6,173,992$28,461,596XML
990September 2023$9,909,544$6,535,093$28,006,238XML
990September 2022$14,304,796$4,094,539$25,438,179IRS
990September 2021–––IRS
990-TSeptember 2021–––IRS
990September 2020–––IRS
990September 2019–––IRS
990September 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 92-0129853).

Questions about PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE

What is the EIN of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE?
The employer identification number (EIN) of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE is 92-0129853.
Is PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1994.
Are donations to PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended September 2025.
Who is the principal officer of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE?
The 990 for the year ended September 30, 2025 names Katrina Hoffman.
Who are the officers and directors of PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE?
The 990 for the year ended September 30, 2025 lists 19 people; 5 received compensation from the organization, the highest $129,672 (Katrina Hoffman, CEO).
How much revenue does PRINCE WILLIAM SOUND SCIENCE & TECHNOLOGY INSTITUTE have?
On its 990 for the year ended September 30, 2025 it reported revenue of $6,895,720, expenses of $7,327,647 and total assets of $28,593,503 at year end.

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