Supercharging impact at work.

We started Mammoth to help organizations maximize their impact by unlocking the power of the workforce.

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Our story

Our Founders

Jack, Jeff, and Roee founded Mammoth in 2021 with a simple goal: to help organizations unlock the full impact potential of their workforce. Throughout their careers, they experienced firsthand how disconnected and under-utilized employee engagement in sustainability and purpose programs often felt. Mammoth was built to change that—to make participation easy, rewarding, and meaningful at scale.


Our Mission

Our mission is to make it easy for employees to turn good intentions into real-world impact—supporting the causes they and their companies care about.

Our values

Grow together

Our company’s growth is rooted in a genuine desire to support one another in reaching our personal and professional goals.

Be kind

We are a diverse group that goes above and beyond to be kind and empathetic to everyone that we work with.

Show up, have fun

Success is driven by compound interest. We show up to work every day eager to work hard and to have fun with one another.

Impact wins

We are a for-profit, for-good company. We believe that prioritizing impact will improve our planet and our bottom line.

Transparent and genuine

We value genuine human connection and transparency in everything that we do, both with each other and our many partners.

Our founders

Jack Bruner, Co-Founder
LinkedIn
Jeff Packer, Co-Founder
LinkedIn
Roee Eidan, Co-Founder
LinkedIn

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Our benefits

Flexible work culture

We are a remote company that offers flexible hours to employees so that they can build a schedule that fits with their life.

Stock option plan

Every employee receives stock options in our company, as we believe that owners of the company make the best employees.

Unlimited vacation

We support all employees in taking the time that they need to expand their minds, rest, and reflect.

A learning culture

We foster continued learning with regular two-way feedback, volunteer days, and opportunities for role expansion.

Monthly wellness credit

A little extra cash to ensure our team's physical, mental, and emotional well-being can get the ongoing support it needs.

Climate benefits

We calculate and offset the personal and work-related emissions for each employee by funding quality carbon removal projects.

Open Roles

There are currently no open roles.

Don’t see the perfect role?

Reach out today!

We’re always looking to meet great people who are passionate about our planet, and looking to do their part to make a difference.

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