501(c)(3) nonprofit · San Francisco Bay Area

The nonprofit home for volunteer-run communities.

Community Builder Toolbox (CBT) gives volunteer communities a legal home, signed contracts, and a working playbook. Since 2018, CBT has carried ZaiGeZaiGu's Spring Festival Galas, singing contests and culture fairs. Today CBT is the nonprofit home of six volunteer communities in the Bay Area and Seattle.

Cast and crew of the 2018 ZaiGeZaiGu Spring Festival Gala on stage
Cast and crew of the 2018 ZaiGeZaiGu Spring Festival Gala.
6Volunteer communities: performing arts, music, dance, culture and product building.
100+Signed agreements with sponsors, venues, media and partner communities.
100%Volunteer-run. CBT has no paid staff.
Communities we support

Real communities, real stages.

CBT holds the contracts, the bank account and the tax filings. The communities do what they do best: put on shows, run festivals and bring people together.

Group photo of the 2022 ZaiGeZaiGu singing contest cast and volunteers Dance performance at the 2022 Spring Festival Gala Craft booth at the 2022 Mid-Autumn Fair
Flagship community10+ years

ZaiGeZaiGu 载歌在谷

ZaiGeZaiGu is a volunteer community of Bay Area Chinese professionals. Every year, hundreds of volunteers, performers and crew produce a Spring Festival Gala, a singing contest and community festivals.

  • 2018Qixi Song Night and Spring Festival Gala
  • 2019Spring Festival Gala at Flint Center, Cupertino
  • 2020Spring Festival Gala at San Jose Center for the Performing Arts
  • 2021Online Spring Festival Gala and Summer Gathering
  • 2022Gala at SJCPA, singing contest at Hammer Theatre, Mid-Autumn Fair
  • 202410th-anniversary Gala at SJCPA, Spring and Fall Culture Fairs, Summer Singing Contest
  • 2025Autumn Fair
Visit zgzg.io →

More communities under CBT

Poster of the SMILE 2024 Qixi Hanfu Fair in Seattle
Seattle · CBT chapter

SMILE 亚马逊华人协会

The Amazonian Chinese League brings Chinese colleagues in Seattle together for culture and fun.

2024: Spring Festival Gala, Qixi Hanfu Fair, summer parties

Poster of the Startup Band 11th anniversary concert
Music · since 2013

Startup Band 走起乐队

A rock band and musician group in Silicon Valley. The band also plays at ZaiGeZaiGu culture fairs.

2024: 11th-anniversary concert at The X Bar, Cupertino

Dance

Googirl 谷妹艺术团

A dance company of Bay Area professionals. Members train in ballet and contemporary dance and perform on community stages.

2024: Ballet technique evaluation and showcase

Product community · since 2014

DotLift 点翼 (formerly Haoshiyou 好室友)

Haoshiyou started in 2014 as a platform for Bay Area friends to find housemates and rooms. The community now continues as DotLift, a product-building community.

Fiscally sponsored since 2024

T-Group Oneness

A Bay Area personal-development community. Donations to Oneness go through CBT and are tax-deductible.

Visit Oneness →

Your community here

Run a volunteer community?

If your community needs a nonprofit home to sign contracts and accept tax-deductible donations, talk to us.

How it works →

For community builders

Focus on your community. CBT handles the paperwork.

Volunteer communities often stall on the same things: who signs the venue contract, where sponsor money goes, and who files taxes. CBT already does all three.

01

A 501(c)(3) home

Accept tax-deductible donations under CBT's nonprofit status through fiscal sponsorship.

02

Contracts and e-signature

Use our templates for sponsorship, in-kind, media and venue agreements, signed electronically and filed for you.

03

Sponsor payments and receipts

Sponsors pay a registered nonprofit and receive a W-9 and a donation receipt.

04

Venue experience

We have rented Flint Center, San Jose Center for the Performing Arts and Hammer Theatre. We know what the contracts ask for.

05

Bookkeeping and filings

CBT keeps the books and files the federal and California returns with a CPA.

06

A playbook from real events

Our toolbox collects what ZaiGeZaiGu volunteers learned the hard way. See the toolbox.

  1. Tell us about your communityFill in the short form below.
  2. Intro callWe talk about your activities, budget and team.
  3. Sign the agreementWe sign a fiscal sponsorship agreement.
  4. Start buildingUse CBT's contracts, account and playbook.
For sponsors and donors

Put your brand in front of a full house.

Local businesses, media and national brands have sponsored ZaiGeZaiGu through CBT since 2018.

  • Cash sponsorship, in-kind sponsorship and media partnership
  • A signed agreement for every sponsorship
  • Payments go to a registered 501(c)(3), so donations can be tax-deductible
  • We provide our W-9 and a receipt on request
A full house at the 2019 ZaiGeZaiGu Spring Festival Gala
A full house at the 2019 Spring Festival Gala, Flint Center. Photo by Shiyang Huang.
The toolbox

What we learned running volunteer events.

Every volunteer community runs into the same four problems: money, time, people and handover. Here is what works for us.

01Set the budget before you plan the event+

If sponsorship is uncertain, every meeting turns into a budget review. Decide the money first, then size the event to fit.

  • Allocate a fixed budget per event and per line item from past years' numbers.
  • Keep a small reserve. This year's surplus or deficit funds next year, not this one.
  • Protect the small things that keep people coming back, such as thank-you gifts for judges and volunteers.
02Start early and work back from the show date+

A short preparation window is the most common reason a show feels rushed. Fix the venue first, then build the timeline backward.

  • Book large venues many months ahead. Venue contracts set your date.
  • Set milestones for sponsorship, auditions, rehearsals, promotion and ticketing.
  • Hold a kickoff meeting for all teams so that every team sees the same timeline.
03Recruit for every team, not only the stage+

Volunteers give time because of the community and the experience. When too few people join, team leads end up doing everything.

  • Recruit early and publish a clear list of roles: stage, sound, lighting, design, sponsorship, operations.
  • Write down the scope of each request between teams, for example what the design team must deliver, in what sizes and by when.
  • Pair new volunteers with returning ones.
04Hand over gradually, not all at once+

When the whole production team changes every year, each new team relearns the same lessons. Gradual handover keeps the knowledge.

  • Keep part of last year's leads as advisors or co-leads.
  • Train a second person for hard-to-fill roles such as lighting and sound.
  • Hold a short retrospective after each event and store it where the next team will find it.
05Put every agreement in writing+

Sponsors, venues and partners all deserve a signed agreement. Written agreements protect volunteers and make the next year easier.

  • Use a template for each type: cash sponsorship, in-kind sponsorship, media partnership, venue rental.
  • Sign electronically and file each agreement in one shared place.
  • Record what you promised each sponsor and check it off after the event.
Join CBT

Volunteer, sponsor, or bring your community.

Tell us who you are and what you want to build. A CBT volunteer will reply.