Corporate Volunteer Program
Booking
A calendar showing availability can be seen at the link below. Please select a date and either request a booking following the directions on the website, or contact Jackson Donahue by email or by phone (617.830.5109), with your requested dates.
- Unlisted timeslots may be requested but are not guaranteed.
- Timeslots are not booked until confirmed by CSIOBS and an invoice is sent. Once invoiced, days may not be rescheduled with the exception of extreme weather (see FAQs for more details).
- Invoices must be paid within 30 days or the day will be released.
- Sponsors of the 2025 Evening Expedition Gala have until March 31st, 2026, to book their awarded volunteer day. After this date, this offer will expire.
- All bookings are non-refundable.
Associated Fees
- Group sizes may be 10, 25, or 50 at rates of $1500, $2500, and $3500, respectively.
- We provide round-trip ferry transportation for a $500 fee. This fee applies to groups of any size. You may also secure your own transport if possible.
Project Logistics
- Typical volunteer projects include beach cleanup, trail maintenance, and campus upkeep. Volunteers are led by trained staff who can show you the ropes.
- We provide all the tools needed to complete projects.
Volunteer FAQs
What’s on the menu for lunch?
Volunteer groups supply their own lunches. Nearby spots can deliver catered lunches to our dock, which we will then bring over on the ferry and stash in a fridge on the island. We recommend the following spots for catering:
If you order from the Flour Bakery location at 19 Drydock Avenue, let us know. They’re right downstairs from our offices so we can pick up your order for you!
What facilities/amenities does the island have?
You’ll have access to indoor bathrooms, water fountains, and numerous spaces where you can cool off in the shade.
What should we bring to our volunteer day?
We provide work gloves, tools, sunscreen, and bug spray on the island. Volunteers should plan to arrive with:
- Close-toed shoes.
- Personal reusable water bottles.
- Long pants are encouraged. We may be on trails which have ticks and bees.
- A warm layer/windbreaker for the ferry ride.
- Rain gear depending on the forecast.
- Backpack for personal items such as snacks, camera, etc.
Do participants need to fill out a waiver?
Yes, please review and submit this online waiver. All members of your team must have this waiver submitted before they can board the ferry.
What if it rains on our volunteer day?
- If it is not substantial rain, we will continue our project as planned or complete an indoor project as needed.
- In the event of thunderstorms or other extreme weather events, our ferry may be cancelled to ensure safety while crossing the Harbor.
- If the ferry is cancelled on your volunteer day, we will work with your team to reschedule for the earliest available rain date. We reserve rain dates in advance and have several held throughout the year.
Where should we meet the ferry?
- Our ferry departs from EDIC dock in the Seaport, 11 Terminal St, Boston MA, 02210.
- Look for the blue awning with the Cathleen Stone Island Outward Bound School logo.
How far is the ferry ride?
About 25 minutes, depending on the waves and boat traffic.
Can we bring our kids?
Volunteers may bring their children on “Family Days,” if booked at least 60 days in advance to allow for proper staffing ratios. These days also incur an additional fee. Please contact Jackson Donahue for more information.
Can we change our group size / date after booking?
Group sizes may be upgraded, provided there is space listed on the calendar for that day. For instance, a group of 25 can upgrade to 50 (with another invoice of $1000) if there is not already another group that day. However, as soon as another group books that day, this will no longer be an option.
Groups may not reschedule their day or downgrade their group size after they are invoiced. Invoices are issued upon confirmation of the date with company representative. The only exception is in the event of extreme weather, in which CSIOBS will move the day to a reserved rain date in the same month.
All bookings are non-refundable.
Testimonial from Keishalee Shaw at Blue Cross Blue Shield of Massachusetts!
“I’ve volunteered through the Cathleen Stone Island Outward Bound Corporate Volunteer Program at least seven times. I see volunteering as a way for me to give back to community, and as a way for me to get to know our community. Our company Service Day (on Cathleen Stone Island) has allowed me to meet associates from different parts of my organization that I do not normally work with and connect with them on a different level doing something outside of the traditional 8-hour workday!”
Thank You to Our 2025 Corporate Volunteers!
Acadian Asset Management
Akamai Technologies, Inc.
Alnylam Pharmaceuticals
Amalgamated Bank
Blue Cross Blue Shield MA
BNY Mellon
Brown Rudnick
CBRE
Constant Contact
Constellation
Coverys
FactSet
Flagship Pioneering
Flour Bakery
Forward Financing
Geode Capital Management
Global Atlantic
GMO
Goodwin
Goulston & Storrs
Greenhouse Agency
GW&K Investments
Kirkland & Ellis LLP
KPMG
Liberty Mutual
Loomis Sayles
Moderna
Natixis
Osmoses Inc
PayPal
Pegasystems
PwC
RedHat
Rockland Trust Company
RSM
Safety Insurance
Sanofi
ServiceNow
State Street
Structure Tone
Sullivan & McLaughlin
Takeda
Turner Construction
U.S. Bank
Vanguard Renewables
Vertex Pharmaceuticals
