Parallel18

parallel18
Founded	December 2015; 10 years ago (2015-12)
Founder	Puerto Rico Science, Technology and Research Trust
Type	Startup accelerator
Headquarters	Science City
Location	Monacillo Urbano, San Juan, Puerto Rico
Services	Business acceleration, incubation, seed investment
Key people	Héctor Jirau (executive director) Sebastián Vidal (founding executive director, 2015–2021)
Parent organization	Puerto Rico Science, Technology and Research Trust
Website	parallel18.com

Parallel18 (stylized parallel18; abbreviated P18) is a startup accelerator and entrepreneurship program based at the Science City complex of the Puerto Rico Science, Technology and Research Trust, in the Monacillo Urbano barrio of San Juan, Puerto Rico.^[1][2] It was established in December 2015 by the Puerto Rico Science, Technology and Research Trust (PRSTRT), a private non-profit organization, to attract and develop high-growth companies that use the island as a platform for expansion into United States and Latin American markets.^[3][4]

The name refers to the 18th parallel north, the approximate latitude of Puerto Rico. According to the organization's ninth impact report, released in May 2026, Parallel18 has supported more than 600 startups and received more than 10,000 applications since its founding.^[5]

Parallel18 was launched in December 2015 amid Puerto Rico's fiscal crisis, as part of the PRSTRT's effort to diversify the local economy through innovation and entrepreneurship.^[6] The program was designed by Sebastián Vidal, a Chilean executive who had previously led Start-Up Chile, the program that served as its model.^[7][8]

The first open call ran from December 9, 2015, to January 29, 2016. Of 802 companies that registered on the YouNoodle evaluation platform, 415 completed applications; the selected startups were announced in March 2016 at the South by Southwest conference in Austin, Texas.^[9] The first cohort began in April 2016 at the program's offices in Santurce.^[10] The program later relocated to the Trust's Science City complex in the Monacillo Urbano barrio of San Juan.^[2][1]

In 2016 the PRSTRT created Parallel18 Ventures, a follow-on fund that matches private capital raised by program graduates in exchange for equity or convertible notes. Recipients were required to keep operations in Puerto Rico and hire full-time employees locally.^[11][12]

Following Hurricane Maria in September 2017, the organization announced pre18, a pre-acceleration program for early-stage Puerto Rican founders, promoted under the campaign slogan El boricua se las inventa.^[13][14]

In 2022 the organization added Xpand, a post-acceleration program for local growth-stage companies underwritten by Banco Popular de Puerto Rico.^[15] In January 2024 it announced BioLeap, described as the island's first life sciences incubator, developed with support from the Economic Development Administration's Build to Scale grant.^[16][17]

Vidal stepped down as executive director in 2021.^[8] Héctor Jirau has held the position since.^[18]

At the Demo Day of P18's thirteenth generation in November 2025, the organization stated that it was transitioning from a grant-based model to an investment platform.^[19] In May 2026, alongside its ninth impact report and a redesigned website, Parallel18 announced that it was winding down pre18 in favor of a performance-based investment model.^[5]

The fourteenth generation of P18, announced in June 2026, comprises 16 companies from nine countries, each receiving a $100,000 investment—$1.6 million in total—over a 16-week program that began on July 6, 2026.^[20][21]

Parallel18 constitutes the entrepreneurship pillar of the PRSTRT, a non-profit entity created by law to advance Puerto Rico's economy through participation in the global knowledge economy.^[22] The program operates with a mix of public, federal, and private funding; reported partners and sponsors have included Banco Popular de Puerto Rico, the U.S. Economic Development Administration, and the Puerto Rico Chamber of Commerce.^[18]

Science City is a Trust-led innovation district in San Juan, announced in 2016 for a 68-acre site in the city's "Knowledge Corridor," whose built facilities include research laboratories, business incubator space, a conference center and offices.^[1][23]

Participants receive access to a mentor network, coworking space, and P18 Connect, a corporate innovation subprogram that introduces startups to established companies.^[24]

P18 is the organization's flagship program and the only one open to companies from any country. It historically offered a 20-week curriculum in Puerto Rico—shortened to 16 weeks beginning with the fourteenth generation—along with mentorship, access to the organization's investor network, and a $40,000 equity-free grant, replaced in 2026 by a $100,000 investment.^[21][25]

Admission criteria have included that a company be innovative and globally scalable, have moved beyond the concept stage, and show sales or a validated product.^[10] Graduates become eligible for the Parallel18 Ventures follow-on fund.^[26]

According to the 2026 impact report, P18 had received 9,026 applications, graduated 320 companies—41.3 percent of them Puerto Rican—and distributed more than $13.3 million in grants across thirteen generations, with a reported survival rate of 78.5 percent.^[5]

pre18 was a pre-acceleration program for early-stage Puerto Rican companies, including ventures that had not yet launched but had a working prototype. It consisted of a 12-week curriculum of workshops and mentorship paired with an equity-free grant, and initially selected up to 40 companies per generation.^[13][27] The grant was $20,000 in the program's early generations and had risen to $25,000 by the seventh cohort in 2025, when 24 companies were selected from more than 200 applicants.^[14][28]

The program was announced in November 2017 in response to the aftermath of Hurricane Maria.^[14] Between 2017 and 2025 it received 1,744 applications, graduated 213 companies, and distributed more than $4.5 million in grant funding, with a reported survival rate of 78.6 percent; 56 alumni companies subsequently advanced into P18.^[5] The organization announced its discontinuation in May 2026, citing the maturation of the local ecosystem and a redirection of resources toward a performance-based investment model.^[5]

Xpand is a post-acceleration program for Puerto Rican companies at an advanced growth stage—generally with three or more years of operations—that seek to export, raise capital, and enter new markets. Subsidized by Banco Popular de Puerto Rico, it provides individualized technical mentorship, workshops, and introductions to ecosystem actors.^[15][29]

Its first two generations supported 26 companies.^[30] By 2026 the organization reported 68 companies associated with the program, with combined revenue of $60 million.^[5]

BioLeap is an incubation program focused on life sciences and STEM projects, announced in January 2024 and described by the organization as the first incubator of its kind in Puerto Rico. Its focus areas include biotechnology, medical devices, genomics, diagnostics, digital health, agritech, and AI-driven medical technologies.^[16][31]

The curriculum comprises 12 weeks of education and mentorship followed by a period of technical assistance, and includes coworking space and access to other PRSTRT subprograms such as the Technology Transfer Office, the Grants Program, SBIR/STTR, and Colmena66.^[32][33] Participants in the first cohorts also gained access to New York's life sciences network through the New York–Puerto Rico Life Science Exchange, an agreement signed between the two governments in 2023.^[17]

The second generation, showcased in May 2025, included thirteen Puerto Rican companies and one Canadian company.^[34] By 2026 the program had graduated 21 companies whose participants had raised more than $5.2 million in capital.^[5] BioLeap and the PRSTRT's Research Institute are developing the Confluence Center, a facility intended to provide laboratory space and specialized equipment to bioscience entrepreneurs.^[5]

Parallel18 Ventures is the organization's investment subprogram. It was created to retain entrepreneurial talent developed by the accelerator, encourage local capital investment, educate the community on investing in high-growth startups, and generate economic impact through local hiring.^[12] It operates chiefly through a matching fund that matches private capital raised by portfolio companies, historically up to $75,000.^[11]

By 2025 the subprogram had deployed $4.4 million across 118 investments in companies from 17 countries, with a reported portfolio survival rate of 78 percent.^[35] The 2026 report stated that portfolio companies had collectively raised more than $133 million.^[5]

Between January and December 2025, 82 local and international startups graduated from Parallel18 programs.^[5] That year's report cited data indicating that more than 500 startups operate in Puerto Rico, close to 40 percent of them founded since 2020, and that median startup revenue on the island rose from $75,000 to $500,000 between 2022 and 2024.^[5]

Companies that have passed through Parallel18 programs and received subsequent press coverage include:

• BrainHi – A San Juan–based company founded in 2017 that built an automated receptionist for medical and dental practices. It pivoted from general-purpose chatbots to health care after Hurricane Maria strained physicians' offices on the island.^[36] A member of P18's fourth generation, BrainHi received follow-on capital from Parallel18 Ventures and in August 2018 became the first company founded and based in Puerto Rico accepted into Y Combinator.^[37][38]
• Raincoat – A Puerto Rican parametric insurance company from P18's eighth generation. It raised $6.5 million in a round reported in 2024, bringing its cumulative capital raised to $11 million.^[39]
• No Limbits – An adaptive apparel brand from P18's twelfth generation that secured retail partnerships including Hanger Clinic, Walmart, and QVC, and raised $3 million in Series A funding.^[35]
• Konvex – A Colombian accounting-reconciliation company from P18's tenth generation that secured a $700,000 investment.^[39]
• Puny.bz – A San Juan–based platform for building and sharing mobile-oriented web apps through drag-and-drop content blocks. It was selected for pre18's seventh generation in 2025 and was recognized at that cohort's DemoDay by the corporate partners Co.Co.Haus and Hello Media, before advancing to P18's thirteenth generation.^[28][40][35]
• Cultimar Technologies – An aquaculture venture founded in 2023 and incubated through BioLeap. It was admitted to the international Hatch Blue accelerator program and raised $1.12 million, later reported at $3.5 million from local and international investors.^[35][5]

Parallel18 is financed largely through public appropriations to its parent body. In January 2026 the government of Puerto Rico assigned $9.5 million to the Trust, of which $2.8 million was directed to Parallel18.^[41] Sebastián Vidal, its founding director, has said that a government-funded program risks addressing the wrong gaps in an entrepreneurial ecosystem, and described Parallel18's separation from direct government administration as a deliberate design choice.^[42]

The Trust itself has been the subject of oversight findings. A report by the Office of the Comptroller of Puerto Rico published on April 25, 2016, covering January 2010 to October 2015, identified deficiencies in the Trust's administration, including the absence of uniform accounting procedures, conflicting duties within its accounting division, weaknesses in internal controls, defects in contract registration and bank reconciliations, and the lack of an internal audit division. Those findings were recited in the statement of motives of Act 107 of 2017, which amended the Trust's enabling legislation.^[43] The report predates most of Parallel18's operating history and did not address the accelerator's programs specifically.

Most figures on Parallel18's reach originate in impact reports the organization publishes annually and that local media reproduce; they are not independently audited, and reported rates have varied between publications. A 2023 profile cited a survival rate of 85 percent among P18 participants,^[44] while the organization's 2026 report gave 78.5 percent across thirteen generations.^[5]

Because the accelerator recruits internationally, retaining companies on the island after graduation has been a recurring concern in its design. Parallel18 Ventures conditions its follow-on capital on recipients maintaining operations in Puerto Rico and hiring at least three full-time local employees within two years, and the fund's stated objectives include retaining entrepreneurial talent the program attracts.^[11][12] pre18 was likewise framed in press coverage as a response to the economic crisis and post-Hurricane Maria emigration of young professionals from the island.^[45]

The 2026 decision to wind down pre18 removed the organization's only program restricted to Puerto Rican founders, which had been created as a hurricane-recovery measure and had distributed more than $4.5 million in grants over eight years. The organization attributed the change to the maturation of the local ecosystem and a shift toward performance-based investment.^[5][14]

In 2020 the Trust redirected remaining operational funds into a $1 million business continuity fund for 39 alumni companies after reducing the size of that year's cohort. Accounts of the instrument differ: one report described amounts of $25,000 to $35,000 disbursed as standard convertible notes,^[46] while another characterized the money as credit of $25,000 to $30,000 repayable within two years.^[47]

• Puerto Rico Science, Technology and Research Trust
• Start-Up Chile
• Economy of Puerto Rico
• Startup accelerator

• Official website
• Puerto Rico Science, Technology and Research Trust