Sandwiched around the deals-focused holidays of Black Friday and Cyber Monday, Thanksgiving and Giving Tuesday — the now billion-dollar global giveback movement — represent two of the holiday season's strongest calls for solidarity.

While families and friends gather together to give thanks and honor their personal relationships, Giving Tuesday offers individuals the chance to engage in their communities at large, encouraging folks around the world to donate time, money, or support to social causes, both online and off.

The widely noted "generosity movement," which falls on Nov. 28 this year, was founded in 2012 based on the organization's concept of "radical generosity."

"While many call on philanthropists, policymakers, and grantmakers to repair broken systems, GivingTuesday recognizes that we each can drive an enormous amount of positive change by rooting our everyday actions, decisions, and behavior in radical generosity — the concept that the suffering of others should be as intolerable to us as our own suffering. Radical generosity invites people in to give what they can to create systemic change," the organization explains.

Since its more modest inception, the organization has raised millions of dollars each year through collaborations with businesses, nonprofits, and community organizations, and provided individuals with other ways to give back. A survey of last year's donors found that 84 percent of people worldwide "donated time, money, items, or voice" to their communities, with younger generations donating more money, and participating in the cause in more varied ways, than older generations.

But, while individuals are still eager to support the generosity movement, 2022 also saw a significant drop in large donor participation and a decline in nonprofit giving. More informal modes of charity, like the rise in individual crowdfunding, mutual aid, and social media-based fundraising, don't appear to be slowing down.

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For those looking to give back on a larger scale, Mashable's rounded up several donor- and brand-backed campaigns that promise to amplify your giving and support those in need.

Children and Education

DonorsChoose 

Education fundraising platform DonorsChoose is providing even more support to teachers and classrooms around the country this Giving Tuesday. All donations made to DonorsChoose projects will receive a 50 percent boost, meaning a $10 donation becomes $15, $50 donation becomes $75, and so on.

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Twitch

Part of the streaming platform's "Together for Good" campaign, which runs Nov. 28 through Dec. 3, Twitch will be matching up to $100,000 of donations made to qualified charity streams. Donations are supporting St. Jude Children’s Research Hospital, but other nonprofits — including Movember, Games Done Quick, Cure Cancer’s Game On Cancer, and Trans Lifeline — will also be highlighted.

Save The Children

All donations to humanitarian organization Save the Children will be matched at five times the donation amount on Giving Tuesday, thanks to a group of anonymous donors. That means every $1 donated becomes $5.

The Ulta Beauty Charitable Foundation (UBCF) is also matching donations to Save the Children, up to $25,000.

UNICEF

All donations to children's humanitarian organization UNICEF will be matched five times for Giving Tuesday.

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Social Justice

Immigration Equity 

Starting on Giving Tuesday, all donations made to Immigration Equity — a legal advocacy network supporting LGBTQ and HIV-positive immigrants — will be doubled, thanks to an anonymous donor. Donation matching will continue until Dec. 31.

SAGE

Part of its charity-matching program, Verizon's Visible Wireless will be matching up to $20,000 in donations made to SAGE, a national service and advocacy organization supporting LGBTQ elders around the country.

Empower Work

Verizon's Visible Wireless will also match up to $20,000 in donations to Empower Work, a nonprofit that provides workplace support and counseling.

Breast Cancer Research Foundation

The Ulta Beauty Charitable Foundation is also supporting the Breast Cancer Research Foundation, matching up to $25,000 in total donations to both the foundation and Save the Children.

Amnesty International

All donations to global humanitarian organization Amnesty International will be doubled on Giving Tuesday.

Human Rights Watch

Donations made to global human rights watchdog Human Rights Watch will be matched five times on Giving Tuesday, with the goal of raising $150,000 by the end of the day.

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The Trevor Project

On Giving Tuesday, all donations to LGBTQ youth advocacy organization The Trevor Project will be matched dollar for dollar, up to $150,000, thanks to support by athletic wear brand Lululemon.

In addition, LGBTQ-owned coffee brand Explorer Cold Brew will donate 100 percent of its proceeds on Giving Tuesday to the organization.

NAACP

NAACP donors will have all contributions doubled on Giving Tuesday.

Center for Reproductive Rights

The Center for Reproductive Rights, a global network of lawyers and advocates working to enshrine reproductive rights in law, is hosting a Giving Tuesday campaign that will match all donations six times.

Global Fund for Women

For Giving Tuesday, all donations to the gender justice organization Global Fund for Women will be doubled.

Hunger

Feeding America

Supported by T-Mobile, customers that use the T-Mobile Tuesdays app can directly donate to the national hunger relief organization Feeding America on Giving Tuesday. When a T-Mobile or Metro customer taps on the Feeding America feature in the app, T-Mobile will donate $1. Donations will be capped up to $200,000. According to Feeding America, $1 helps provide at least 10 meals secured by Feeding America on behalf of local member food banks.

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Partnership for a Healthier America

All donations to Partnership for a Healthier America, an organization working to address food and health equity, will be doubled on Giving Tuesday.

Instacart customers can also support the organization through the app's third-annual Giving Tuesday campaign, in partnership with Motts, Core Hydration, Dole, and OLIPOP. From Nov. 27 to Dec. 4, for every customer dollar spent on select products from these four brands, the coalition will collectively donate one serving of fruits and vegetables to the Partnership for a Healthier America. Donations will be capped at a total of 1 million servings.

U.S. Hunger

U.S. Hunger, a national hunger relief organization, will also receive support from Verizon's Visible Wireless this Giving Tuesday, with the company matching up to $20,000.

City Harvest

Donations to City Harvest, a New York–based food rescue organization fighting food insecurity and waste, will see all donations matched dollar for dollar on Giving Tuesday, up to $170,000.

Environment

National Forest Foundation

The National Forest Foundation is a Congress–chartered conservation organization leading forest conservation efforts and promoting responsible recreation in forests and grasslands. On Giving Tuesday, the organization will match every donation made up to $50,000, thanks to an anonymous donor.

Animal Welfare

Chewy

Chewy's Give Back holiday program is here, and the pet supplies brand will be matching every purchase in the form of product donations to animal welfare organizations, up to $1 million per week. For every purchase on Chewy.com, the company will donate to an animal charity or shelter in need, through Greater Good Charities.

The company will also donate one pound of dog food for every letter sent to its Chewy Claus campaign, and will be fulfilling select animal charity wishlists.

The Humane League 

The Humane League, a national nonprofit with the goal of ending animal abuse in factory farms, will be matching donations dollar for dollar on Giving Tuesday.

Bissell Pet Foundation

For Giving Tuesday, pet food and wellness brand Native Pet will be donating 100 percent of its profits to the Bissell Pet Foundation, which supports animal charities and provides resources to underserved communities, including pet adoption, spay and neuter programs, vaccinations, microchipping, and crisis and disaster response.

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UPDATE: Nov. 28, 2023, 1:57 p.m. EST This story was updated with additional Giving Tuesday campaigns.