Parallel182027 deadline, funding, equity and how to apply
Puerto Rico Science, Technology and Research Trust accelerator. Invests $100,000 via SAFE per startup for a 16-week in-person program in San Juan. Reopens in 2027.
- $100K
- Funding
- SAFE
- Equity
- 4-week virtual Phase Zero plus 16 weeks in Puerto Rico
- Program length
- Dates TBA
- Applications
About Parallel18
Parallel18 is a global accelerator and investment platform in Puerto Rico. It is part of the Puerto Rico Science, Technology and Research Trust, a private nonprofit. It started around 2015 and has run 14 generations of its flagship P18 accelerator.
P18 is open to startups from any country and any industry. The goal is to use Puerto Rico as a base to grow into the US and Latin American markets. The current model invests $100,000 per startup through a SAFE.
That replaced an older mix of a $40,000 equity-free grant and a $20,000 SAFE. Gen.6 million in total.
The program starts with Phase Zero, four weeks of virtual evaluation for up to 30 startups. A selection committee then picks up to 18 for a 16-week program in Puerto Rico. A founder who leads the team must live on the island for those 16 weeks.
Graduates that keep operating from Puerto Rico can tap Parallel18 Ventures, which co-invests in alumni. Parallel18 also runs BioLeap, a life sciences incubator now on its fourth generation, and Xpand, a scale-up program. The alumni network covers more than 600 startups, according to its site.
As of October 2026, P18 is not taking applications. The site says applications reopen in 2027 and offers a waitlist for Gen. 15.
What Parallel18 looks for
P18 wants innovative, scalable and investable startups with ambitious founders. Startups must have operated for three years or less and show traction in sales or users. They need at least two full-time founders and a team leader who can live in Puerto Rico for 16 weeks.
Companies must be incorporated in Puerto Rico or the US, or be authorized to do business there if selected. They should be raising, or plan to raise, a pre-seed or seed round within six months of the start. Non-US founders need a US visa, usually B1/B2.
How the Parallel18 program works
P18 runs in three parts. Phase Zero is a four-week virtual due diligence term. Up to 30 startups attend online meetings and workshops while Parallel18 judges their investment readiness.
Completing it is required to move on. Next, a selection committee picks a cohort of up to 18 startups. Some teams have an extra interview.
The selected startups receive the $100,000 SAFE investment and start a 16-week curriculum in person in Puerto Rico, with about four to six hours a week of program time. The curriculum covers growth, fundraising and market entry, with mentors and local partners. Startups are notified of their status after each phase.
After graduation, alumni that stay in Puerto Rico can seek co-investment from Parallel18 Ventures.
How to apply to Parallel18
- 1Join the Gen. 15 waitlist on parallel18.com/p18 to be told when applications reopen in 2027.
- 2Submit the online application when the call opens. There is no application fee.
- 3Complete the four-week virtual Phase Zero evaluation if you are invited.
- 4Go through the selection committee review and any extra interview.
- 5If selected, sign the SAFE, receive $100,000 and move a team-leading founder to Puerto Rico for 16 weeks.
Startup perks after acceptance
Accelerator startups qualify for most startup credit programs. These are the ones founders claim first.
Parallel18 vs similar accelerators
| Program | Funding | Equity | Location | Deadline |
|---|---|---|---|---|
| Parallel18 | $100K | SAFE | San Juan, Puerto Rico | Next deadline not announced yet |
| Wayra (Telefónica) | Up to $5.8M | Minority stake | Madrid | Rolling admissions |
| EIC Accelerator | Up to $2.9M | None on grant | EU | November 4, 2026 (8 days left) |
| PearX | Up to $2M | ~7% | San Francisco Bay Area | Rolling admissions |
| Dreamit Ventures | Up to $1.5M | Not published | New York | Rolling admissions |
| Seedcamp | Up to $1.3M | Varies | London, UK | Rolling admissions |
Parallel18 FAQ
When is the Parallel18 application deadline?+
Parallel18 has not announced its next deadline yet (Applications reopen in 2027; waitlist open for Gen. 15). We check the official site every month and update this page when dates are published.
How much does Parallel18 invest?+
Parallel18 invests $100,000 per selected startup through a SAFE, a Simple Agreement for Future Equity. The valuation cap and discount are not published. Earlier generations received a $40,000 equity-free grant plus a $20,000 SAFE, so older articles may show different figures. There is no application fee.
Can international startups apply?+
Yes. P18 is open to startups from any country and any industry. Selected companies must be incorporated in Puerto Rico or the US, or be authorized to do business in Puerto Rico. Non-US founders need to obtain a US visa, usually a B1/B2. A team-leading founder must live in Puerto Rico for the 16-week program.
When can I apply to Parallel18?+
Not right now. As of October 2026 the P18 page says applications reopen in 2027, and a waitlist is open for Gen. 15. The 2026 cycle ran a virtual evaluation in spring and the in-person program from mid-year. No 2027 deadline has been published yet.
What other programs does Parallel18 run?+
Besides the P18 accelerator, Parallel18 runs BioLeap, an incubator for life sciences and bioengineering startups that opened applications for its fourth generation, and Xpand, a scale-up program for growth-stage companies. Parallel18 Ventures co-invests in alumni that keep operating from Puerto Rico.
Sources: parallel18.com, parallel18.com, sociable.co, newsismybusiness.com, prsciencetrust.org, newsismybusiness.com