Greentown Labs

Staff Accountant

Join Greentown Labs in Burlington, Massachusetts as a Staff Accountant supporting monthly close and accounting operations. This role offers ownership of journal entries, accruals, and audit schedules in a fast-growing clean mining startup. Enjoy unlimited PTO, full healthcare coverage, and stock options in an innovative environment.
Greentown Labs
Greentown Labs
Burlington, Massachusetts, United States On-site Full time US$95,000–140,000 annually UTC-05:00

Greentown Labs

Company Overview

Name

Greentown Labs

Headquarters

Somerville, Massachusetts, United States

Founded

2010

Size

Approximately 360 employees and has supported startups that raised over $1.5 billion in capital (source: climatebase.org).

What They Do

Greentown Labs is a leading climatetech incubator that focuses on fostering innovation across various sectors, including electricity, buildings, transportation, agriculture, and manufacturing. The organization provides shared prototyping facilities rather than developing its own technologies, which allows early-stage climatetech startups to thrive in a supportive environment. With 100,000 square feet of lab space, Greentown Labs offers essential resources such as a wet lab, machine shop, electronics lab, and environmental testing chamber, catering to the unique needs of its member startups (source: climatebase.org). The incubator also provides office space for over 450 entrepreneurs and a 500-person event space, ensuring that startups have access to the tools and facilities necessary for success (source: greentownlabs.com). Greentown Labs has established a curated ecosystem that promotes collaboration, mentorship, and investor introductions, which are critical for the growth of hardware-focused startups.

Projects & Track Record

While Greentown Labs does not execute projects directly, it has played a pivotal role in enabling its member startups to achieve significant milestones. Notable impacts include the success of original tenants like Promethean Power Systems, which developed off-grid refrigeration solutions that have benefited over 17,000 rural farmers in India after prototyping at the incubator (source: news.mit.edu). By 2018, member startups had collectively created over 1,000 jobs and raised $340 million, showcasing the incubator's effectiveness in nurturing innovation. As of recent counts, Greentown Labs has supported over 360 startups that have raised more than $1.5 billion in capital, demonstrating its significant impact on the climatetech landscape (source: climatebase.org). The incubator's ongoing efforts focus on hosting current early-stage companies and expanding its facilities to accommodate the growing demand for climatetech innovation.

Recent Developments

In the past two years, Greentown Labs has not announced any major contracts, acquisitions, or funding rounds for itself, with the focus remaining on historical milestones such as the opening of the Global Center for Cleantech Innovation in 2018 and the establishment of a tool shop in 2021 (source: greentownlabs.com). The organization continues to maintain its status as North America's largest climatetech incubator, with member startups collectively raising $1.5 billion, which highlights the ongoing relevance and impact of Greentown Labs in the climatetech sector (source: climatebase.org). Although specific awards or certifications have not been documented recently, the incubator's reputation as a leader in climatetech innovation remains strong.

Working There

Greentown Labs offers a variety of roles that support its incubator operations, including positions in prototyping labs, events, partnerships, recruitment, and management. The organization is led by CEO Emily Reichert and has a professional staff team that has scaled the organization significantly since its inception (source: news.mit.edu). Job openings are primarily located at the Somerville and Houston campuses, with recruitment inquiries directed to [email protected] for potential staff roles. The company culture emphasizes collaboration, community, and a spirit of entrepreneurship, which is rooted in the founders' shared experiences and challenges. This culture fosters a professional environment where knowledge sharing, investor introductions, and camaraderie among team members are highly valued (source: greentownlabs.com).


Last updated on Feb 23, 2026 | Report an issue

Phoenix Tailings is a rapidly growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. Our mission is to be the world's first fully clean mining and metals production company, producing the resources needed for the next generation of our economy.

At Phoenix, we believe that nothing great is ever accomplished alone or without the passion of people who push and motivate one another. If you are someone who shares our relentless pursuit of a better future, passion for innovation, and are excited about working with some of the top innovators in the world, then this is the place for you.

Our Values

  • You are only crazy if you are wrong, it's ok to be wrong
  • Lead with Compassion
  • Be Resourceful
  • Listen
  • Hustle

Who We Are Looking For

We are seeking a Staff Accountant to support the monthly close and the day-to-day accounting operations of a fast-growing manufacturing company. You will own journal entries, accruals, prepaid expenses, fixed assets, and account reconciliations, and prepare the schedules that support our audit.
The ideal candidate is early in an accounting career, detail-obsessed, and looking for a role with real ownership and a clear path to grow as the finance team builds out.

Key Responsibilities

  • Prepare and post journal entries as part of the monthly close.
  • Calculate and record accruals, and maintain the supporting documentation.
  • Maintain prepaid expense schedules and record monthly amortization.
  • Maintain the fixed asset register, including additions, disposals, and depreciation.
  • Prepare balance sheet account reconciliations and research reconciling items.
  • Prepare audit schedules and gather documentation in support of the annual audit.
  • Support accounts payable and accounts receivable operations as needed.
  • Follow and help document accounting procedures; flag issues and process gaps.
  • Support ad hoc reporting and analysis requests from the accounting team.

Qualifications

  • Bachelor's degree in Accounting, Finance, or a related field.
  • 1-3 years of accounting experience; public accounting experience is a plus.
  • Working knowledge of GAAP and the month-end close process.
  • Experience with an ERP system; NetSuite experience is a plus.
  • Strong Excel skills.
  • Exceptional attention to detail and organizational skills.
  • Clear written and verbal communication; comfortable asking questions.
  • Eager to learn and take on more ownership in a fast-moving environment.

What We Offer

This pay range reflects best estimate for the total cash compensation which includes salary + discretionary bonus for this role. Total package may vary based on experience and qualifications.
Pay Range: $95,000 - $140,000 total cash compensation plus equity
* Healthcare: 100% Medical, dental, and vision coverage for employee
* Stock Options: Ownership in a fast-growing venture-backed company.
* Time Off: Unlimited PTO.
* Learning: Learning and development opportunities to grow your skills and career.

At Phoenix Tailings, we have an open culture that values learning, and we are looking to grow the team with enthusiastic individuals who share our vision of sustainable mining.

Phoenix Tailings, Inc. is an Equal Opportunity Employer, and we value diversity at all levels. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex (including gender identity, sexual orientation, and pregnancy), national origin, age, disability or genetic information, or any other applicable protected characteristics, and these characteristics will not be a factor for consideration of any work-related decisions (including but not limited to hiring, firing, compensation, and discipline).

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Apply now

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About the role

September 1, 2026

September 2, 2026

Full time

On-site

Non-profit

US$95,000–140,000 annually

Bioenergy

Greentown Labs

greentownlabs.com

  •  Burlington, Massachusetts, United States

1-3 years of accounting experience

UTC-05:00