Form 990 Funding Disclosure

does form 990 show the source of funding for all ngos ? Is such information generally public ?

Form 990 shows some funding sources, but not all donor-level funding for most NGOs.

For U.S. nonprofits:

What Form 990 usually shows publicly

• Total revenue by category: contributions/grants, program service revenue, investment income, fundraising revenue, etc.
• Major government grants may appear in revenue lines or schedules.
• Large grants paid by the nonprofit to others, especially on Schedule I.
• Fundraising events, related orgs, foreign activities, lobbying, contractors, executive pay, etc.
• Sometimes enough detail to infer major funders if they are government agencies, foundations, or listed in narrative attachments.

What it usually does not publicly show

• Names of individual donors.
• Names of most private donors or donor-advised fund contributors.
• Schedule B lists major contributors, but for most 501(c)(3)s and 501(c)(4)s it is filed with the IRS but redacted from public inspection.
• Donor-advised funds obscure the original donor: public record may show “Fidelity Charitable,” “Schwab Charitable,” etc., not the person/company behind it.

Important exception

• Private foundations file Form 990-PF and generally must disclose grants they make. So if a foundation funds an NGO, you may find it from the foundation’s filings, not necessarily the NGO’s own 990.
• Some charities voluntarily disclose donors in annual reports, audited financials, websites, or grant pages.

So: is NGO funding generally public?

• Aggregate funding: usually yes.
• Government funding: often yes, and sometimes traceable through agency databases.
• Foundation funding: often public via foundation 990-PFs, annual reports, or grant databases.
• Individual/corporate donor identity: often not public unless voluntarily disclosed or routed through a public foundation that reports the grant.
• Dark-money-style nonprofits, especially 501(c)(4)s: donor sources are generally not public.

Best practical approach: look at the NGO’s Form 990, audited financials, annual report, website donor list, government grant databases, and then search funders’ 990-PF filings. Form 990 alone rarely gives the full source-of-funding map.

do all 501 c companies file a form 990 ? is it possible to trace funding for them ?

I’ll ground this in the current IRS rules, because the exceptions matter a lot here.

No. Not all 501(c) organizations file a full Form 990.

The IRS rule is: most tax-exempt orgs under 501(a), including most 501(c) orgs, must file an annual return, but there are major exceptions. The IRS says small orgs with normally $50k or less in gross receipts can file the very thin 990-N e-Postcard, and churches, some church-affiliated orgs, and some other orgs are excepted from filing. citeturn234887search3turn234887search14turn234887search0

What different 501(c)s usually file

Can you trace funding?

Partially. You can usually trace:

• total contribution revenue
• government grants
• program service revenue
• investment income
• related-party transactions
• grants from private foundations, by searching the funder’s 990-PF
• sometimes big institutional funders from annual reports, audited financials, press releases, grant databases, state filings, procurement portals, or donor pages

But you usually cannot trace all donors. Schedule B reports major contributors to the IRS, but the IRS says contributor names and addresses generally are not public for most exempt organizations; public disclosure is broader for private foundations and 527 political organizations. citeturn234887search4turn234887search1

The basic trick

To trace funding, don’t only look “downstream” at the NGO’s 990. Also look “upstream”:

1. Find the NGO’s EIN.
2. Pull its 990s from IRS / ProPublica / Candid.
3. Search its name in private foundation 990-PFs.
4. Search government grant/procurement databases.
5. Check annual reports, audited financials, donor pages, press releases.
6. Look for donor-advised fund intermediaries like Fidelity Charitable, Schwab Charitable, Vanguard Charitable — these often hide the original donor.

So the answer is: Form 990 makes nonprofit finances semi-public, but not fully transparent. Funding is traceable for foundations and government grants, often murky for individuals, DAFs, corporations, churches, and 501(c)(4)s.

what other public forms are available about nonprofits ? Who they grant their money to ? Etc /

I’ll separate this into “federal tax forms,” “state filings,” and “other public records,” since grantmaking transparency depends heavily on the nonprofit type.

Yes. For nonprofits, the public paper trail is bigger than just Form 990. The useful sources are:

1. IRS annual filings

Form 990 / 990-EZ
Main annual return for larger public charities, 501(c)(4)s, 501(c)(6)s, etc. Shows revenue, expenses, officers, contractors, lobbying, program spending, related orgs, and grants made. Exempt orgs generally must make their annual returns publicly available. citeturn767390search9

Form 990-N e-Postcard
For very small orgs. Basically just confirms existence. Not useful for tracing money.

Form 990-PF
For private foundations. This is one of the best sources because it usually lists grants paid out, grantees, amounts, purposes, officers, assets, investment holdings, and sometimes contributors. If you want to know “who funds this NGO,” search foundation 990-PFs for grants to it.

Form 990-T
Filed when an exempt org has unrelated business taxable income. For 501(c)(3)s, this can be subject to public inspection, but it is more useful for side-business activity than donor tracing. IRS instructions note 990-T public-inspection treatment for 501(c)(3)s. citeturn767390search6

2. Important 990 schedules

These are often where the real detail is.

3. IRS exemption applications

Nonprofits also have public exemption-application files: Form 1023 / 1023-EZ for 501(c)(3)s, Form 1024 / 1024-A for many other 501(c)s, plus IRS determination letters and supporting documents. The IRS says exemption applications and supporting documents are subject to public disclosure. citeturn767390search26

These can show:

• founding purpose
• planned activities
• projected budgets
• initial officers/directors
• relationships with founders or related entities
• sometimes early funding assumptions

They’re often more revealing for a new nonprofit than its first 990.

4. State charity-registration filings

Many states require charities that solicit donations to register with the state attorney general / charity bureau / secretary of state. These filings can include:

• annual financial reports
• audited financial statements
• copies of Form 990
• professional fundraiser contracts
• charity registration status
• enforcement actions

This varies wildly by state. For New York, California, Illinois, Florida, etc., these registries can be very useful.

5. Corporate/entity filings

Secretary of State corporate records can show:

• incorporation date
• registered agent
• directors/officers sometimes
• amendments
• mergers
• name changes
• dissolution/reinstatement

Usually not money-flow detail, but useful for entity mapping.

6. Audited financial statements

Bigger nonprofits often publish audited financials. These may show:

• revenue by category
• grant commitments
• restrictions on funds
• major programs
• debt/leases
• related-party transactions
• concentration risk, sometimes like “one donor accounted for 38% of contributions,” without naming the donor

Often better than the 990 for financial clarity, worse for names.

7. Government grant/procurement records

If they receive public money, check:

• USAspending.gov
• Grants.gov / agency grant pages
• state procurement portals
• city contract databases
• school district / county board agendas
• public meeting minutes
• federal subaward databases where applicable

Government money is often the easiest to trace.

8. FEC / state campaign finance filings

If the nonprofit has political activity, related PACs, or gives through a political arm:

• FEC filings for federal PACs/super PACs
• state campaign finance portals
• IRS 527 filings for political organizations

This matters especially for 501(c)(4), 501(c)(5), 501(c)(6), and affiliated PAC networks.

9. Annual reports, donor lists, press releases

Not formal filings, but often the best source for:

• named foundation funders
• corporate sponsors
• board donor networks
• “lead supporters”
• grant purposes
• partner orgs

For “who they grant their money to”

Best sources, in order:

1. Their Form 990 Schedule I — domestic grants.
2. Their Form 990 Schedule F — foreign grants/activities.
3. Their 990-PF — if they are a private foundation.
4. Audited financials / annual reports — often more narrative.
5. Recipient 990s — sometimes list grant revenue or mention the funder.
6. Grant databases / foundation websites — Candid, foundation grant pages, press releases.

The key limitation: public forms are usually much better at showing where a nonprofit sends money than who originally funded it, unless the funder is a private foundation, government agency, or voluntarily disclosed donor.

are state filings public ? How much of a story can you get into "What this nonprofit did this year" for example

Yes, state nonprofit/charity filings are often public, but the usefulness varies a lot by state.

In many states, charities that solicit donations must register with the state AG/charities bureau and file annual reports. Illinois, for example, requires charitable organizations that solicit donations or hold charitable assets in Illinois to register with the Attorney General, and the public can search the state charitable database for registered/compliant charities. citeturn250769search10turn250769search2 Illinois also has an AG990-IL Charitable Organization Annual Report, plus fundraising-campaign reports when professional fundraisers are used. citeturn250769search0

How much of a “what did this nonprofit do this year” story can you build?

Usually: pretty good for larger orgs, mediocre for small orgs, terrible for opaque political/church/DAF-funded structures.

You can often reconstruct:

Financial story

• total revenue
• contribution/grant revenue
• government grant revenue
• program service revenue
• fundraising expenses
• admin expenses
• executive compensation
• contractors
• net assets, reserves, debt

Program story

• the nonprofit’s own description of its major programs
• how much each program cost
• sometimes counts served, geographies, outcomes, etc.
• whether it expanded/contracted year over year

Grantmaking story

• who it gave money to domestically via Schedule I
• foreign grants/activities via Schedule F
• for private foundations, detailed grant lists via 990-PF
• sometimes recipient names, amounts, and grant purposes

Governance/network story

• board and officers
• related organizations
• insider transactions
• controlled entities
• major contractors
• affiliated foundations, PACs, LLCs, fiscal sponsors

Fundraising story

• fundraising events
• professional fundraiser relationships
• fundraising efficiency
• sometimes campaign-level state filings

What you usually cannot fully reconstruct:

• true original donors, especially individuals
• donor-advised fund origins
• corporate donors if not disclosed
• member-level funders of 501(c)(6)s
• church finances, if exempt from filing
• internal strategy, staff decisions, informal coalition work
• grant outcomes beyond what they self-report

The IRS requires exempt organizations to make Form 990-series returns publicly available, including schedules and attachments, but most nonprofits do not have to publicly disclose contributor names and addresses. Private foundations are the big exception where donor/grant information is much more visible. citeturn250769search1turn250769search5

Best “story reconstruction” stack

For a serious profile, use:

1. IRS Form 990 / 990-EZ / 990-PF
2. State charity filings, especially AG annual reports
3. Audited financial statements
4. Annual reports / impact reports
5. Foundation 990-PFs that list grants to them
6. USAspending / city/state procurement databases
7. Lobbying/campaign finance records
8. Secretary of State entity filings
9. Press releases, board minutes, grant announcements, job postings
10. Website snapshots via Internet Archive

A good analyst can usually write a credible yearly narrative like:

“In 2024, the org grew from $3.2M to $5.1M revenue, mostly due to foundation grants; shifted spending from direct services to advocacy; made $900k in grants to five partner orgs; hired a new executive director; paid $400k to a consulting firm connected to a board member; launched a new program in Illinois; and ended the year with 11 months of reserves.”

But the hard wall is donor opacity. You can often tell what money came in by type and what money went out to whom. You often cannot tell who ultimately funded it, unless the source is government, a private foundation, or voluntarily disclosed.

what's an example of a typical "california ngo" i can check on propublica ? Something other than healthcare

I’ll give you examples that are large enough to have real 990 detail, but not healthcare/hospital entities.

A good starter example: Sierra Club Foundation — California-based, non-healthcare, big enough to have rich filings, and it grants money out. ProPublica page: citeturn355732search0

Other good examples:

For your purpose, I’d start with Sierra Club Foundation if you want grantmaking detail, or Housing California if you want a more normal advocacy nonprofit rather than a huge national brand.

On ProPublica, look especially at: Part I summary, Part III program accomplishments, Part VIII revenue, Part IX expenses, Schedule I grants, Schedule R related orgs, and Schedule O explanations.

yes so how would you write the story of the sierra club ?

I’ll use the public filings as the spine: mission/programs, revenue mix, grants out, compensation/contractors, and related entities. Then I’ll turn it into a narrative rather than a spreadsheet summary.

For Sierra Club Foundation specifically, I’d write the story like this:

The 2024 story

Sierra Club Foundation is less a direct-service charity than a funding and fiscal engine for environmental advocacy. In 2024 it reported $108.2M in revenue, almost all of it from contributions and grants: $102.5M, or 94.7%. It had $102.1M in expenses, ended the year with about $180.6M in net assets, and reported $210.7M in total assets. So the first-line story is: this is a large donor-funded environmental grantmaking/fiscal-sponsorship institution, not a small grassroots nonprofit. citeturn976418view0turn501511view0

Its core function is to move charitable money into Sierra Club-linked environmental programs. Its mission language says it exists to educate and empower people to protect the natural and human environment, with goals around decarbonization, public lands and waters, clean air and water, outdoor access, and environmental justice. Its biggest reported program categories in 2024 were Beyond Coal, Chapter and Group Education Project, National Education Project, and a large bucket of other charitable/scientific/legal grants. Total program service expenses were $87.5M. citeturn508670view0turn907975view0

The biggest “where did the money go?” fact is that it gave $85.6M to Sierra Club itself. Schedule I lists a cash grant of $85,639,241 to Sierra Club, a 501(c)(4), for “environmental awareness and education.” That is the central money-flow fact: the Foundation raises tax-deductible charitable money, then makes a very large grant to the related Sierra Club ecosystem. citeturn249322view1

It also funded a long tail of allied environmental and climate-justice groups. Examples from Schedule I include $250k to Michigan Environmental Council for organizing against Line 5 and DAPL, $250k to Community Initiatives for climate-justice network-building, $100k to Sustainable Markets Foundation for solar-energy research in Brown County, Texas, $100k to GreenLatinos, $75k to Latino Community Fund of Washington State for affordable green housing, and $50k to Appalachian Mountain Advocates for legal/scientific work against fossil-fuel infrastructure. citeturn249322view1

The donor side is much less visible than the grantee side. ProPublica flags that the Foundation operated a donor-advised fund, and the public Schedule B donor section in the filing is essentially restricted/redacted, so you can tell the organization received huge contribution revenue, but not cleanly reconstruct every original donor from the public 990 alone. citeturn976418view0turn508670view0

The organization also has an investment/endowment/planned-giving layer. The filing shows other securities including international equity and limited partnerships, split-interest agreements, charitable remainder trusts, pooled income funds, and gift annuity pools. So part of the story is not just annual donations but a managed philanthropic/investment structure that can hold assets, receive noncash gifts, and generate investment income. citeturn249322view0turn714873view1

Operationally, it is lean relative to the grant volume. It reported 23 employees, 20 volunteers, and executive/key employee compensation in the hundreds of thousands rather than millions. It also lists major independent contractors including The Raben Group for communications, Avivar Capital for investment advisory, and KPMG for audit fees. citeturn501511view0turn501511view1

The governance story is “professionalized nonprofit with formal controls,” at least on paper. Schedule O says senior staff, the audit committee, paid preparers, legal counsel, and the board reviewed the 990 before filing; board members get annual conflict-of-interest questionnaires; executive compensation is reviewed against duties, performance, and comparable nonprofit salary surveys. citeturn714873view0

One-paragraph version

In 2024, Sierra Club Foundation functioned as a major charitable funding vehicle for the Sierra Club environmental network. It took in about $108M, overwhelmingly from contributions and grants, and spent about $102M, with $87.5M going to program services. The dominant flow was an $85.6M grant to Sierra Club for environmental awareness and education, supplemented by smaller grants to climate, conservation, environmental-justice, clean-energy, outdoor-access, and anti-fossil-fuel-infrastructure groups. Its public filings reveal a lot about what it funded, its program priorities, compensation, contractors, governance, and investment structures; they reveal much less about the original donors behind the money, especially because donor information is restricted and donor-advised structures obscure the ultimate source.

yes but wtf did they do in 2025 ?

I’ll switch from 990-only to 2025 activity signals: annual/report pages, press releases, grant announcements, campaign pages, and related Sierra Club filings/news.

The honest answer: the real 2025 Sierra Club / Sierra Club Foundation “what did they do” story is not fully knowable from 990s yet. Their 2025 Form 990 likely will not be public until later in 2026, especially if they take the normal extension. So for 2025 you’d write a provisional activity narrative from press, campaigns, litigation, grant announcements, social posts, and later reconcile it against the 990.

For 2025, the story looks roughly like this:

Sierra Club in 2025: an environmental machine fighting rollbacks while internally melting down

In 2025, Sierra Club appears to have spent the year doing two things at once: fighting the Trump administration’s deregulatory agenda externally and trying to stabilize a serious leadership crisis internally.

Externally, the group was active across its usual lanes: public lands, fossil fuels, clean energy, environmental justice, litigation, and mass-member pressure. One clear 2025 theme was defending federal land protections. After the Trump administration moved to rescind the 2001 Roadless Rule, opening roughly 59 million acres of national forest land to more logging and road-building, Sierra Club was among the environmental groups warning that the rollback would harm air, water, wildfire resilience, and public lands. citeturn249494news41

Another big lane was anti-fossil-fuel / clean-energy advocacy. Sierra Club’s Beyond Coal / Beyond Dirty Fuels ecosystem kept pushing against coal, oil, and gas infrastructure, while also defending federal clean-energy programs. Public posts from the organization framed 2025 as a year of “victories” despite a hostile federal environment, including stopping a large proposed public-lands sell-off after pressure from Sierra Club advocates and others. citeturn613358search3turn613358search13

The Foundation side also made a visible capital-allocation move: in June 2025, Sierra Club Foundation announced it was moving $10.5 million away from BlackRock, criticizing BlackRock’s retreat from climate commitments and reduced support for climate-related shareholder resolutions. The money was reportedly redirected to Nia Impact Capital and Xponance. That’s a useful concrete example of the Foundation using its own balance sheet as an advocacy instrument, not just handing out grants. citeturn249494news40

On public lands, Sierra Club was part of broader coalitions backing protections such as Chuckwalla National Monument, which President Biden established on January 14, 2025. The monument had support from tribes and conservation groups including Sierra Club; later in 2025 it became part of the broader fight over whether the Trump administration could shrink or undo recent monument designations. citeturn249494search43

But the internal governance story may be the more important 2025 story. Sierra Club fired executive director Ben Jealous in August 2025 “for cause” after a turbulent period involving layoffs, staff-union conflict, no-confidence votes, and disputes over strategic direction. Politico reported that staff reaction included relief and hope for improved relations and refocus. citeturn960959search2turn960959news27 In September 2025, the board named longtime Sierra Club leader Loren Blackford as executive director, explicitly as a stabilizing move after the ouster. citeturn960959search10

So the 2025 story I’d write is:

In 2025, Sierra Club operated as a large, mature environmental advocacy institution under stress. Its public-facing work centered on resisting Trump-era rollbacks: defending national forests and monuments, opposing fossil-fuel expansion, protecting clean-energy programs, and mobilizing members around public lands and climate. The Sierra Club Foundation complemented that work not only through the usual grantmaking/fiscal-support structure but also through symbolic financial stewardship, including moving $10.5M away from BlackRock over climate concerns. But internally, 2025 was a crisis year: the organization’s first Black executive director, Ben Jealous, was fired for cause after years of staff conflict, layoffs, union tensions, and leadership disputes. The appointment of Loren Blackford in September marked an attempt to stabilize the institution and return focus to environmental fights.

What I wouldn’t claim yet:

• exactly how much money they raised in 2025
• exactly which organizations the Foundation granted to in 2025
• whether specific campaign expenditures grew/shrank
• the full donor mix
• how much of their 2025 money went to Sierra Club vs other grantees

That stuff needs the 2025 Form 990 / 990-PF-equivalent filing, audited financials, and annual report. Right now, you can write the activity + controversy story, but not the final money-flow story.

ok for 2024 then. what can i do besides googling them ? i guess id want a database of "every periodical / publication" that i can search ? Plus social media ?

I’ll treat this as building an OSINT workflow for a nonprofit year-in-review: filings first, then news/periodicals, then social/web archives, then government/legal records.

Yes. For a real 2024 “what did they do?” profile, don’t start with Google. Build a mini dossier from structured records + media archives + web/social traces.

The stack I’d use

1. Core nonprofit records

For Sierra Club / Sierra Club Foundation:

• ProPublica Nonprofit Explorer — easiest 990 viewer; includes summary data and PDFs. ProPublica says it provides Form 990 summary data and full 990 documents. citeturn883948search7
• IRS TEOS — official IRS exempt-org search and downloadable datasets. citeturn883948search23
• Candid / GuideStar — better profiles, sometimes annual reports, self-reported programs, seals, extra docs. Candid’s nonprofit search is built for checking status, financials, mission, and programs. citeturn883948search13
• California Registry of Charities — state filings, registration status, sometimes PDFs.
• CA Secretary of State — entity records, directors/officers sometimes, amendments.
• Audited financials / annual reports — often on the org site.

For “who did they grant to,” look at:

• Sierra Club Foundation Form 990, Schedule I
• Schedule F if foreign activity
• recipient orgs’ 990s
• private foundation grant databases for who funded them

2. News / periodical databases

This is what you actually want instead of just Googling.

Best paid/pro sources:

For Sierra Club specifically, you want local and regional papers, not just NYT/WaPo. Search by campaign names and state chapters: “Sierra Club California,” “Sierra Club Beyond Coal,” “Sierra Club lawsuit,” “Sierra Club settlement,” “Sierra Club permit,” “Sierra Club chapter,” etc.

3. Legal / regulatory records

Environmental NGOs leave a giant litigation/regulatory trail.

Search:

• PACER / CourtListener / RECAP — federal litigation.
• state court databases — depending on state.
• Federal Register — comments, rules, agency actions.
• Regulations.gov — comments on proposed rules.
• EPA / DOE / DOI / FERC dockets — energy/environment fights.
• California Public Utilities Commission dockets
• city/county hearing agendas
• CEQA litigation / environmental review comments
• state lobbying disclosures
• federal lobbying disclosures
• FEC / state campaign finance if there are related PACs or ballot fights.

For Sierra Club, this is probably where a lot of the real 2024 action is: lawsuits, comments, energy dockets, permitting fights, settlement agreements, public-land rulemaking.

4. Social media / web corpus

For public narrative and campaign activity:

• X/Twitter advanced search, if accessible
• Facebook page posts
• Instagram
• YouTube
• TikTok
• LinkedIn
• Reddit
• Bluesky/Mastodon, if relevant
• org newsletters
• Action Network / EveryAction campaign pages
• press releases
• event pages
• chapter websites
• archived pages via Wayback

Paid social/media monitoring tools include Meltwater, Brandwatch, Talkwalker, Critical Mention, Cision, etc. These are basically the “search every publication + social” enterprise products. Brandwatch/Meltwater/Talkwalker-style tools are used for historical and real-time social/media monitoring, though coverage and lookback vary by platform and plan. citeturn883948search20turn883948search22

5. Build the story as a timeline, not a pile of links

For 2024, make a table like:

Then convert it into a narrative:

1. Money in — who/what funded them, as far as knowable.
2. Money out — grants, contractors, campaigns, staff.
3. Campaigns — what fights they picked.
4. Wins/losses — plants closed, lawsuits won/lost, rules changed, permits blocked.
5. Institutional changes — leadership, layoffs, union disputes, board shifts.
6. Geography — where activity concentrated.
7. Network map — related orgs, grantees, coalitions, funders.
8. Open questions — donors hidden by Schedule B/DAFs, campaign spend not itemized, etc.

Concrete search queries for Sierra Club 2024

Use these in Factiva/Nexis/ProQuest/NewsBank:

"Sierra Club" AND 2024 AND ("lawsuit" OR "sued" OR "settlement")
"Sierra Club" AND "Beyond Coal" AND 2024
"Sierra Club Foundation" AND 2024 AND ("grant" OR "funding")
"Sierra Club" AND ("California" OR "CPUC" OR "CEQA") AND 2024
"Sierra Club" AND ("FERC" OR "pipeline" OR "LNG") AND 2024
"Sierra Club" AND ("coal plant" OR "retirement") AND 2024
"Sierra Club" AND ("layoffs" OR "union" OR "Ben Jealous") AND 2024
"Sierra Club" AND ("donor-advised" OR "foundation") AND 2024
"Sierra Club" AND ("public lands" OR "monument" OR "BLM") AND 2024

On dockets/regulatory sites:

"Sierra Club" site:regulations.gov 2024
"Sierra Club" site:ferc.gov 2024
"Sierra Club" site:cpuc.ca.gov 2024
"Sierra Club" site:epa.gov 2024
"Sierra Club" site:doi.gov 2024

On their own ecosystem:

site:sierraclub.org "2024" "Sierra Club"
site:sierraclub.org "press release" "2024"
site:sierraclub.org "Beyond Coal" "2024"
site:sierraclub.org "victory" "2024"
site:sierraclub.org "lawsuit" "2024"
site:sierraclubfoundation.org "2024" "grant"

The “database of every periodical” answer

There is no truly complete public database of every periodical + social platform. The closest are:

• Factiva / Nexis / ProQuest / NewsBank for publications.
• Meltwater / Brandwatch / Talkwalker / Cision for media + social monitoring.
• GDELT if you want a free, machine-readable global news/event dataset, though noisier.
• Internet Archive for web history.
• Common Crawl if you want to build your own massive web corpus, but that’s an engineering project.

For your use case, the practical combo is:

ProPublica/Candid + state filings + PACER/CourtListener + Regulations.gov/FERC/CPUC + Factiva/Nexis/NewsBank + Wayback + social search.

That gets you 80–90% of the public story. The remaining black box is usually donor identity, internal strategy, and unpublished coalition work.