Who are the leading "venture philanthropists" or impact investors for a non-profit tech organization?

If by a “non-profit tech organization” you mean a nonprofit where technology is central to the mission—not merely an administrative tool—there is a fairly distinct group of funders worth targeting.

Strongest potential fits

A particularly important distinction: “impact investor” doesn't necessarily mean investor in a nonprofit. Acumen, for example, is itself a nonprofit but invests substantially in entrepreneurial businesses serving people experiencing poverty. Acumen For a 501(c)(3), the more relevant instruments may be grants, program-related investments, recoverable grants, or other catalytic capital.

Three I'd investigate first for a technology nonprofit

1. Patrick J. McGovern Foundation

This is unusually well aligned with technology itself being part of the mission. Its current work explicitly includes strengthening nonprofits through AI, data, engineering expertise, and technical capacity, including accelerator grants and multi-year partnerships.Patrick J. McGovern Foundation+2

Its recent grantmaking has also been substantial: the Foundation announced $73.5 million toward AI-for-humanity work involving 144 nonprofit, academic, and governmental organizations.Patrick J. McGovern Foundation

2. Echoing Green

This is the more classic venture-philanthropy model. It invests early in social entrepreneurs rather than simply funding established nonprofits. Its 2026 Fellowship provides $100,000 in seed capital plus support and a network; Echoing Green also now has follow-on funding and its Signal Fund for later-stage growth.Echoing Green+2

The Signal Fund is particularly interesting if you've already demonstrated traction: it was created to provide capital at the early-viability/scaling stage where conventional funders may perceive too much risk.Echoing Green

3. Siegel Family Endowment

I'd pay special attention here if you're doing public-interest technology. A recent Bridgespan analysis describes Siegel as having spent more than a decade investing in public-interest technology, alongside funders including Ford Foundation.Bridgespan

A second tier I'd put on the prospect list

Depending on your mission, I'd also investigate:

• Omidyar Network — especially digital society, governance, economic opportunity, responsible technology, and civic infrastructure.
• DRK Foundation — particularly compelling if you're an early-stage organization with a demonstrably scalable intervention.
• New Profit — more relevant once you've established evidence and are looking for growth/scale capital.
• MacArthur — particularly for systemic change, technology, democracy, journalism, climate, and other major societal issues.
• Knight Foundation — especially civic tech, journalism, democracy, and information ecosystems.
• Schmidt Futures / Schmidt Sciences — potentially relevant for unusually ambitious technology, science, and AI initiatives.
• Skoll Foundation — worth investigating if the organization is tackling a major systemic social/environmental problem.
• — potentially relevant for health, education, science, and community-oriented technology.

One important strategic point

I wouldn't approach all of these as though you're looking for a conventional “grant.” I'd divide your fundraising story into three possible buckets:

A. “Fund the technology itself.” Approach McGovern, Siegel, Knight, Omidyar, etc. with a public-interest technology thesis.

B. “Fund our organization to scale a proven intervention.” Approach DRK, New Profit, Echoing Green's later-stage programs, MacArthur, etc.

C. “Invest in a model that can eventually sustain itself.” Then impact investors such as Acumen become much more relevant, particularly if there is earned revenue or a financially sustainable social-enterprise component.

And there is an important caveat about Bridgespan: it is an excellent resource for understanding the philanthropic landscape, but it doesn't itself provide funding to nonprofits.Bridgespan

If you tell me (1) what the technology does, (2) who benefits, (3) annual budget/current funding, (4) whether you're U.S. or international, and (5) whether you're seeking $250K, $1M, $5M+, etc., I can turn this into a target list of ~15 specific funders, including why each fits, likely funding mechanism, relevant program/contact route, and what I'd put in the first outreach.

If by “venture philanthropist” you mean a funder that is willing to back a nonprofit with startup-style capital, multi-year support, strategic help, and an expectation of scaling, there is a strong ecosystem around nonprofit technology and public-interest tech.

The most relevant names depend heavily on what your technology does, but I’d start with these:

There is particularly strong evidence that Omidyar Network is relevant to a tech nonprofit: it operates through both a philanthropic foundation and an investment LLC, and says it has committed more than $1.12 billion in nonprofit grants and $739 million in for-profit investments since inception. It explicitly supports technology, governance and digital systems.Omidyar Network+1

One organization I'd put unusually high on the prospecting list

Fast Forward is specifically built around this problem. It describes itself as a nonprofit accelerator for tech nonprofits and reports having accelerated 100+ organizations, with its portfolio subsequently raising $1.4 billion in follow-on funding.Fast Forward

That makes it potentially valuable even if you ultimately want to approach much larger philanthropists: it can function as a credibility, scaling, and investor-network bridge.

If your organization is specifically “tech for the public good”

I'd also investigate Siegel Family Endowment. A recent Bridgespan analysis describes Siegel as having spent more than a decade investing in public-interest technology, alongside funders including Ford Foundation.Bridgespan

And Omidyar Network is especially interesting if your technology touches AI governance, digital rights, economic opportunity, democracy, information ecosystems, or responsible technology. In September 2026, an Omidyar-backed initiative announced a $10 million open grant opportunity for U.S. nonprofits working on community-led approaches to how AI is built, governed and used.Omidyar Network

A different category: “scale philanthropists”

Blue Meridian Partners is worth knowing about, but it's a different proposition. It makes very large, performance-oriented investments in organizations addressing economic and social mobility, with investments potentially reaching $200 million over 10–12 years. It generally identifies prospects itself rather than accepting unsolicited proposals.Blue Meridian Partners+1

So I wouldn't approach it the same way you'd approach a tech-focused seed funder.

The key question is your nonprofit's “investment thesis”

If you tell me what the nonprofit actually does, its annual budget/revenue, technology/product, geography, current traction/users, and how much you're seeking (e.g. $500K, $2M, $10M), I can narrow this to 10–15 highly plausible funders, including specific philanthropists/family offices, their relevant programs, approximate check sizes, whether they fund nonprofits directly, and the best route for an introduction/application.

If by “venture philanthropists” you mean funders who behave somewhat like venture investors—providing catalytic capital, taking a portfolio approach, helping with strategy/technology/talent, and sometimes funding organizations through multiple stages—there is a strong ecosystem for nonprofit technology.

As of 2026, I’d look particularly at these groups:

There is unusually strong current activity around AI + public-interest technology. For example, the Patrick J. McGovern Foundation explicitly focuses on AI/data for public purpose, including digital infrastructure and responsible AI governance.Inside Philanthropy+1

The Gates Foundation's Strategic Investment Fund is another interesting model if your organization has something that could eventually become financially sustainable or scale through a market mechanism: it describes itself as the foundation's impact-first investment arm and uses venture capital, debt, guarantees, and other instruments.Strategic Investment Fund

And Twilio.org is unusually relevant to a technology nonprofit because its impact portfolio explicitly invests in early-stage social enterprises and organizations using technology to address social problems.Twilio.org

The ones I'd investigate first

For a nonprofit whose core product is technology, rather than a conventional nonprofit that merely uses technology, I'd start by investigating:

1. Fast Forward — specifically built around tech-enabled nonprofits.
2. Patrick J. McGovern Foundation — particularly compelling for AI/data/public-interest technology.
3. Omidyar Network — particularly if you're tackling systemic issues through technology.
4. Draper Richards Kaplan — if you're relatively early and have evidence of a scalable model.
5. New Profit — if you're further along and trying to scale.
6. Schmidt Futures / Schmidt Sciences — if there is substantial frontier-technology or scientific innovation.
7. Knight Foundation — if the technology has a civic/information/democracy component.
8. Mozilla Foundation — if it's open-source, internet infrastructure, AI accountability, privacy, or digital rights.
9. MacArthur — if the technology is a vehicle for broader systems change.
10. Gates Strategic Investment Fund — if there's a particularly strong technology + global-development thesis.

There's also an important distinction between “funders of nonprofits” and “impact investors.” Gates, MacArthur, and Omidyar, for example, have mechanisms that can deploy investment capital rather than ordinary grants. MacArthur reports $391.2M committed to its impact-investment portfolio as of the end of 2025.MacArthur Foundation

One particularly interesting current opportunity

If your organization uses AI, the OpenAI Foundation's People-First AI Fund is worth investigating. It committed $50M for 2026 to nonprofits working with AI to advance their missions, following $50M of initial funding commitments in 2025–26.OpenAI Foundation+1

I can make this much more specific

If you tell me what the nonprofit actually does, I can identify the 10–15 funders most plausibly aligned with it, rather than giving you a generic philanthropy list. The most useful details would be:

• What the technology/product does
• Who uses it / who benefits
• U.S. only or international
• Current annual budget or revenue
• Current stage: prototype, pilot, established, or scaling
• Amount you're trying to raise (e.g. $250K, $1M, $5M+)
• Whether you need unrestricted grants, project grants, or investment-like capital

I can then map the funders to likely fit, funding mechanism, typical scale of support, relevant programs, and how you'd approach them.

I can make this much more specific

If you tell me what the nonprofit actually does, I can identify the 10–15 funders most plausibly aligned with it, rather than giving you a generic philanthropy list. The most useful details would be:

For a nonprofit whose core product is technology, rather than a conventional nonprofit that merely uses technology, I'd start by investigating:

The leading venture philanthropic funds and impact investors supporting non-profit technology, digital infrastructure, and systemic social innovation include organizations like the Omidyar Network, New Profit, and NewSchools Venture Fund.[joinleland.com](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)[[2](https://kirtlandcu.org/venture-philanthropy-or-impact-investing-how-it-works-to-grow-your-giving)](https://kirtlandcu.org/venture-philanthropy-or-impact-investing-how-it-works-to-grow-your-giving/)

Venture philanthropy and impact investing combine the risk-tolerant, capacity-building, and multi-year funding traits of venture capital with public-benefit missions. For non-profit tech organizations, these funders provide not just capital, but strategic guidance, technical assistance, and network access.[joinleland.com](https://www.iadb.org/en/news/venture-philanthropy-panacea-or-snake-oil)

Top Venture Philanthropists and Impact Investors for Non-Profit Tech

• Omidyar Network : Founded by eBay founder Pierre Omidyar, this organization specifically focuses on digital equity, ethical tech, data governance, and the digital economy alongside democratic systems. They use a mix of grants and impact investments to build systemic technological infrastructure for the public good.[joinleland.com](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)
• New Profit : A pioneering venture philanthropy organization that backs breakthrough social entrepreneurs and non-profit leaders. They provide large, multi-year, unrestricted funding and strategic operational support to scale organizations tackling complex societal challenges.[joinleland.com](https://kirtlandcu.org/venture-philanthropy-or-impact-investing-how-it-works-to-grow-your-giving/)
• : Focused heavily on education innovation, NewSchools invests in both non-profit and hybrid education technology (edtech) models, diverse entrepreneurial leadership, and innovative public school tools.[]()

Summary of Focus Areas

If you'd like to narrow this down, tell me:

• What is the specific mission or focus area of your non-profit tech organization (e.g., edtech, civic tech, health tech)?
• What stage of growth are you in (idea stage, early pilot, scaling)?

I can provide a more tailored list of specific grantmakers or funds best suited for your exact profile.

For a non-profit tech organization, securing funding means looking for "venture philanthropists" or impact investors who understand both technology scalability and social or systemic change. These entities typically offer multi-year, unrestricted funding alongside hands-on strategic support, operational mentoring, and network access rather than one-off grants.joinleland.com [joinleland.com](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)

The leading organizations and networks operating at the intersection of tech, non-profits, and venture philanthropy include:

• Omidyar Network – Founded by eBay founder Pierre Omidyar, this pioneering hybrid organization uses both a philanthropic foundation (for non-profit grants) and an LLC (for for-profit/impact investments). They specifically focus on the digital society, responsible technology, data rights, and tech governance.omidyar.com [joinleland.com](https://omidyar.com/how-we-invest/our-approach/)[[2](https://omidyar.com/how-we-invest/our-approach)](https://www.insidephilanthropy.com/find-a-grant/grants-o/omidyar-network)
• Draper Richards Kaplan Foundation (DRK) – A premier global venture philanthropy firm that finds, funds, and supports early-stage, high-impact social enterprises—including non-profits. They provide multi-year unrestricted financial support and take an active board or advisory role to help tech-driven solutions scale.
• New Profit – A prominent venture philanthropy organization that backs breakthrough social entrepreneurs. They run multi-year investment portfolios (such as "Catalyze" and deeper scaling grants) providing unrestricted funding and strategic advisory support to tech-enabled nonprofits working in education, economic mobility, and democracy.newprofit.org [joinleland.com](https://newprofit.org/)[[2](https://omidyar.com/how-we-invest/our-approach)](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)[[3](https://www.insidephilanthropy.com/find-a-grant/grants-o/omidyar-network)](https://newprofit.org/about-us/)[[4](https://newprofit.org/)]()
• Skoll Foundation – Known for investing in social entrepreneurs and scaling programs with massive systemic potential. While not exclusively tech, they frequently back tech-forward or data-driven non-profits tackling global challenges like pandemics, climate change, and accountable governance.
• Chan Zuckerberg Initiative (CZI) – Utilizing a dual LLC and philanthropic structure similar to Omidyar, CZI heavily backs science, education tools, and housing/justice initiatives, frequently blending open-source software development with non-profit execution.
• Acumen – A pioneer of "patient capital". While they skew heavily toward for-profit impact models, they occasionally support blended or early-stage social ventures tackling systemic poverty and underserved infrastructure.joinleland.com [joinleland.com](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)

To help narrow down which of these might be the best fit, could you share:

• What specific social issue or sector is your non-profit tech tool targeting (e.g., education, civic tech, healthcare)?
• What stage is the organization in (idea phase, early pilot, or ready to scale nationally)?

Yes. For a nonprofit whose core asset is technology, I’d focus less on conventional “impact investors” and more on venture philanthropy, catalytic capital, and tech-focused philanthropic funders. Because a nonprofit generally can't offer equity, the best partners tend to provide grants, recoverable grants, PRIs, technical assistance, networks, and follow-on funding.

My shortlist

1. Fast Forward — probably the first call I'd make

If you are genuinely a tech nonprofit, rather than a conventional nonprofit that happens to use technology, Fast Forward is unusually well aligned. It describes itself as the first and only nonprofit accelerator focused on scaling tech nonprofits. As of 2026, it reports having accelerated 100+ organizations whose work has reached 415 million people and whose portfolios have raised $1.4 billion in follow-on capital.Fast Forward+1

ffwd.org

2. Omidyar Network — exceptional for technology + systemic impact

This is one of the strongest prospects if your work sits at the intersection of technology and societal change. Omidyar operates both a 501(c)(3) foundation and an LLC, allowing it to make nonprofit grants as well as investments. It reports more than $1.94 billion committed, including more than $1.12 billion in nonprofit grants.Omidyar Network+1

Especially interesting for:

• Responsible AI
• Digital rights
• Civic technology
• Democracy/governance
• Economic opportunity
• Digital public infrastructure

omidyar.com

3. Patrick J. McGovern Foundation

I'd put this extremely high if you're doing AI, data, open-source technology, digital transformation, or technology for social good. It's much closer to a technology-philanthropy specialist than a generic foundation.

4. Draper Richards Kaplan Foundation

DRK is one of the clearest examples of venture philanthropy in the traditional sense: identify unusually strong social entrepreneurs, provide catalytic early funding, and help them build organizations capable of scaling.

This is particularly interesting if you can demonstrate:

A large social problem + a technology-enabled solution + evidence of traction + a credible path to 10x/100x impact.

5. New Profit

New Profit is another excellent prospect if your technology is a mechanism for achieving economic mobility, education, workforce development, democracy, or broader systems change. It says it has invested more than $350 million in 325+ social-impact organizations since its founding.New Profit

newprofit.org

6. MacArthur — particularly interesting for catalytic capital

MacArthur is worth knowing because it isn't limited to conventional grants. Its impact-investment program uses loans, equity, guarantees and other instruments, specifically seeking opportunities that conventional investors consider too risky, novel or unprofitable. It reports more than $800 million committed through PRIs/MRIs since 1983.MacArthur Foundation+1

macfound.org

7. Public Benefit Innovation Fund — an especially interesting newer player

This one is easy to overlook. PBIF describes itself as a philanthropic venture fund and R&D lab providing seed funding and technical support to nonprofits, researchers, academic labs, startups and technologists working to improve social-service delivery. It has already awarded $8.5 million to AI solutions for safety-net program delivery.Public Benefit Innovation Fund

publicbenefitinnovationfund.org

Don't overlook corporate tech philanthropy

For a technology nonprofit, I'd also investigate:

• Google.org — AI, education, climate, economic opportunity, civic technology
• Microsoft — AI, cloud, digital skills and nonprofit technology
• Salesforce — nonprofit technology and social-sector infrastructure
• Twilio.org — particularly relevant if communications technology is part of your model. Its Impact Fund explicitly provides grants and investments to nonprofits and social enterprises pursuing technology-enabled social impact.Twilio.org
• Chan Zuckerberg Initiative — particularly science, education, health and community-focused technology
• Emerson Collective — technology, education, immigration, climate and social change

The individual philanthropists

If you're looking for people rather than institutions, some names worth researching include:

• Pierre Omidyar — technology, digital society and governance
• Eric Schmidt — AI, science and technology
• Jeff Skoll — social entrepreneurship
• Mitch Kapor — technology and equity
• Marc Benioff — technology and philanthropy
• MacKenzie Scott — large unrestricted nonprofit grants
• Melinda French Gates — global development and equity
• Craig Newmark — journalism, democracy and information integrity

But I would generally target the institutional vehicle rather than the individual. The foundation/organization is usually much more accessible and has a defined funding process.

How I'd prioritize them

If you gave me zero additional information about your nonprofit, my first outreach wave would be:

1. Fast Forward
2. Omidyar Network
3. Patrick J. McGovern Foundation
4. Draper Richards Kaplan
5. New Profit
6. MacArthur
7. Knight Foundation
8. Schmidt Futures
9. Kapor Foundation
10. Google.org / Microsoft / Salesforce / Twilio.org

The key is that “nonprofit tech” isn't itself a funding thesis. Your strongest prospects will depend heavily on what the technology does.

For example, if you tell me (a) what your technology does, (b) who it serves, (c) annual budget/current funding, (d) geography, and (e) whether you're seeking $100K, $1M, $5M+, etc., I can turn this into a ranked list of 20–30 specific funders, including likely program officers, typical check/grant size, relevant past grantees, and the best way to approach each one.

For example, if you tell me (a) what your technology does, (b) who it serves, (c) annual budget/current funding, (d) geography, and (e) whether you're seeking $100K, $1M, $5M+, etc., I can turn this into a ranked list of 20–30 specific funders, including likely program officers, typical check/grant size, relevant past grantees, and the best way to approach each one.

The leading venture philanthropists and impact investors for non-profit tech organizations include specialized venture philanthropy funds, major tech-backed foundations, and prominent donor networks that deploy catalytic capital, unrestricted funding, and operational support to scale digital public goods and tech-driven social change.

Top Venture Philanthropy Funds & Networks

• New Profit : A pioneering venture philanthropy organization that provides unrestricted, multi-year growth capital and strategic capacity-building to systems-changing social entrepreneurs and tech-enabled nonprofits.kirtlandcu.org [kirtlandcu.org](https://kirtlandcu.org/venture-philanthropy-or-impact-investing-how-it-works-to-grow-your-giving/)
• Omidyar Network : Founded by eBay pioneer Pierre Omidyar, this social change venture focuses heavily on digital infrastructure, the digital economy, data governance, and tech-powered civic engagement.joinleland.com [kirtlandcu.org](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)[[2](https://www.joinleland.com/library/a/the-top-10-venture-capital-firms-for-nonprofits)](https://www.philanthropyroundtable.org/magazine/venture-capital-philanthropy/)
• NewSchools Venture Fund : Specifically targets education entrepreneurs and non-profits scaling ed-tech innovations, digital learning tools, and equity-focused school systems.kirtlandcu.org [kirtlandcu.org](https://kirtlandcu.org/venture-philanthropy-or-impact-investing-how-it-works-to-grow-your-giving/)
• TechSoup : Acts as the world's leading non-profit technology facilitator and capacity-building network, connecting civil society organizations with major tech product donations, resources, and impact-driven capital partnerships.

Major Tech-Backed Foundations & Impact Funds

• Chan Zuckerberg Initiative (CZI) : Founded by Priscilla Chan and Mark Zuckerberg, heavily blending technology, open-source software development, and science grants to accelerate non-profit solutions in education and disease tracking.
• Bill & Melinda Gates Foundation : One of the largest institutional funders globally, frequently deploying capital for digital health infrastructure, data systems, and global development tech.
• Skoll Foundation : Established by Jeff Skoll, invests in scalable social entrepreneurship and digital networks tackling worldwide challenges.
• Open Philanthropy : Uses a data-driven, effective altruism framework to provide substantial grants to high-impact tech, biosecurity, and global catastrophic risk non-profit initiatives.insidephilanthropy.com [kirtlandcu.org](https://www.insidephilanthropy.com/find-a-grant/tech-philanthropists)[[2]()]()

If you can share the core mission or focus sector (e.g., ed-tech, civic tech, health tech) of your non-profit organization, I can help narrow down which specific funder is the best match for your stage of growth.

Yes. For a nonprofit technology organization, I’d distinguish between conventional foundations, venture-philanthropy firms, and tech-oriented impact funders. The strongest targets depend heavily on whether you are building software/infrastructure, using AI/data, working in education/health/economic mobility, or operating digital public infrastructure.

My shortlist

Two I'd prioritize immediately

If you told me only that you're a nonprofit tech organization, I'd start with:

1. Fast Forward — This is almost purpose-built for your category. It describes itself as the first organization focused on scaling tech nonprofits and has supported more than 100 organizations. Its current funder ecosystem includes Google.org, BlackRock, Ballmer Group, Bloomberg, Salesforce, Patrick J. McGovern Foundation, Twilio.org, ServiceNow, Hewlett Foundation, Arnold Ventures, OpenAI and others.Fast Forward+1

2. Draper Richards Kaplan Foundation — If you're early-stage and have a compelling, scalable model, DRK is one of the most literal examples of venture philanthropy. It provides three years of unrestricted funding and intensive organizational support rather than simply writing project grants.Draper Richards Kaplan Foundation

DRK has also backed technology-oriented organizations including EducationSuperHighway, Kiva, Room to Read and One Acre Fund, so there is meaningful precedent for tech-enabled nonprofit models.Draper Richards Kaplan Foundation

If you're specifically looking for "impact investors"

There's an important distinction: a nonprofit generally can't take conventional venture equity the way a for-profit startup can. So the most useful capital may be:

• unrestricted venture-philanthropy grants
• recoverable grants
• program-related investments (PRIs)
• donor-advised/foundation grants
• catalytic capital
• corporate strategic partnerships
• technology donations/cloud credits
• philanthropic investment in a related for-profit subsidiary, if you have one

That makes organizations like DRK, Fast Forward, Omidyar Network and New Profit potentially more relevant than a conventional impact VC.

Fast Forward is especially interesting because it explicitly works with funders that want to support tech- or AI-powered nonprofits, including through direct funding.Fast Forward

I would build your fundraising pipeline in tiers

Tier 1 — highest probability

• Fast Forward
• DRK Foundation
• Patrick J. McGovern Foundation
• Relevant corporate foundations/CSR programs
• Google.org
• Salesforce
• Microsoft/related philanthropic programs
• Hewlett Foundation

Tier 2 — large strategic funders

• Omidyar Network
• Schmidt Futures
• Rockefeller Foundation
• CZI
• New Profit
• Knight Foundation
• Mozilla Foundation
• Kapor Foundation

Tier 3 — depending on your mission

• Gates Foundation
• Ford Foundation
• MacArthur Foundation
• Skoll Foundation
• Arnold Ventures
• Emerson Collective
• Ballmer Group

The key is not to approach these as a generic "nonprofit seeking funding." The strongest pitch is usually something like:

"We are building technology that solves X for Y population, our unit economics are Z, we've demonstrated A, and an additional $1M of unrestricted/catalytic capital allows us to reach B people or institutions at C marginal cost." That language puts you much closer to the venture-philanthropy/impact-investing frame than a conventional grant proposal.

If you tell me what your nonprofit actually does, its stage (idea / <$1M / $1–5M / $5M+ budget), geography, and roughly how much you're seeking, I can narrow this to 10–15 specific funders/investors, the people/programs to approach, typical check sizes, and why each one is a fit.