Terrestrial
Terrestrial develops microarray patch technology for drug delivery, starting with GLP-1 therapies. The company has raised $181M and employs 115 people.
The growth story
Terrestrial grew from 29 to 115 employees between 2021 and 2026, raising $181M along the way, most recently a Series C in March 2026.
About
Terrestrial makes a skin patch system for delivering drugs like GLP-1 therapies. The patch resembles a bandage and is applied with a preloaded device, releasing medication quickly without needles or refrigeration. It’s designed for self-administration and works across a range of treatments.
The company has raised $181M, including a Series C in 2026, and employs 115 people. Its technology has shown strong clinical and in-vivo proof of concept, positioning it as a player in next-generation drug delivery.
Founders and leadership
Engineering is the largest function at Terrestrial, with 19 employees. The company’s leadership includes founders with backgrounds in biotechnology and drug delivery systems.
The Terrestrial org chart
Rachel Sha (Chief Executive Officer) leads 20 mapped leaders with 4 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Research 29 (+45% YoY), Engineering 27 (+42% YoY), Operations 11 (+38% YoY), Business Development 11 (0% YoY), Quality Assurance 7 (+75% YoY), Sales 6 (+100% YoY).
Talent flow
Terrestrial recruits heavily from Tufts University, which accounts for 7 hires. Other top sources include Lyndra Therapeutics, Pfizer, and BD. Alumni have moved to companies like Sanofi and LabCentral.
Most common previous employers of Terrestrial staff: Tufts University (7), Lyndra Therapeutics (4), Pfizer (4), BD (3), Boston Scientific (3), Medtronic (3). Former Terrestrial employees most often moved to Lybra Bio (2), Sanofi (2), LabCentral (1), iORGANBIO (1), UTOPIA Fiber (1), Capital One (1).
Alumni worth knowing
The Terrestrial mafia
Terrestrial alumni have founded 6 companies, including LabCentral (118 staff), Aro Biotherapeutics (52 staff), and Lybra Bio (4 staff).
6Johannes Fruehauf, was Board Member until 2025Purnanand Sarma, was Board Member until 2023Michael Schrader, was Co-Founder and CEO until 2024Matthew Getz, was Strategy Operations Consultant until 2014Carter Palmer, was Engineer until 2017Kate Skrada, MS, was Associate Scientist until 2025Hiring now
What this company is made of
Most common skills at Terrestrial: Microsoft Office (35), Research Skills (34), Microsoft Excel (31), Communication (31), Teamwork (27), Leadership (25), Data Analysis (23), Microsoft Word (21).
Where the team actually sits
Terrestrial people are concentrated in Massachusetts, United States (34), Greater Boston (20), United States (4), New Hampshire, United States (3).
Search footprint
Terrestrial attracts about 118 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 7 ranking keywords and lost 8 in the last period.
What employees say
- Compensation
- 4.30 / 5
- Career opportunities
- 4.20 / 5
- Senior management
- 3.90 / 5
- Work-life balance
- 4.00 / 5
Frequently asked
Terrestrial has 115 employees as of September 2026.
Terrestrial has raised $181M in total, most recently a Series C round in March 2026.
Terrestrial was founded in 2012 by Livio Valenti, Kathryn Kosuda.
Rachel Sha (Chief Executive Officer) sits at the top of Terrestrial's reporting structure, with 4 direct reports.
The most common previous employers of current Terrestrial staff are Tufts University (7 people), Lyndra Therapeutics (4 people), Pfizer (4 people).
Former Terrestrial employees most often move to Lybra Bio (2), Sanofi (2), LabCentral (1).
At least 6 companies have a founder who previously worked at Terrestrial, including LabCentral, Aro Biotherapeutics, Lybra Bio.
Terrestrial attracts about 118 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among Terrestrial staff are Microsoft Office, Research Skills, Microsoft Excel, Communication, Teamwork.
Terrestrial staff are concentrated in Massachusetts, United States (34), Greater Boston (20), United States (4).
Terrestrial has about 29 people in Research, up 45% over the past year, as of September 2026.
Terrestrial has about 27 people in Engineering, up 42% over the past year, as of September 2026.
Computed from 64 current and 81 former Terrestrial profiles, as of September 2026. Source: Crustdata.
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