TÜBİTAK has launched the BiGG+ Tohum Yatırım 2026 Yılı 1. Çağrısı, providing up to 8 million TRY in seed capital for verified alumni companies in Turkey.
Overview of the BiGG Seed Investment Program
BiGG+ Tohum Yatırım 2026 Yılı 1. Çağrısı is a seed investment program for established Turkish technology companies that have previously completed early-stage TÜBİTAK entrepreneurship initiatives. This call serves as Stage 3 within the broader BiGG structure, which focuses on transforming innovative ideas into commercial products, services, and industrial processes. Companies qualifying for this specific intervention have already verified their commercialisation potential through past research and development work.
The institutional framework of the BiGG journey consists of three sequential phases. In Stage 1, entrepreneurs submit their initial business concepts to accelerator programs where implementing agencies evaluate ideas and provide mentoring, training, and incubation. Stage 2 evaluates detailed business plans, awarding qualifying applicants the Seal of Excellence and initial investment from the TÜBİTAK BiGG Fund to establish formal corporate entities. Stage 3 builds directly upon those milestones by deploying growth capital to help established alumni expand operations rapidly.
Funding under this call is managed through the Kalkınma Girişim Sermayesi A.Ş. TÜBİTAK BiGG+ Girişim Sermayesi Yatırım Fonu, commonly referred to as BİGG+ GSYF. The core objective of deploying seed capital through BİGG+ GSYF is accelerating the development of high-growth ventures that generate substantial added value and qualified employment across Turkey. Enterprises seeking this capital must navigate a rigorous multi-tier evaluation process before formal investment agreements are finalised.
Who is eligible to submit a BiGG+ Tohum Yatırım application?
Eligible applicants must be capital companies established in Turkey after January 1, 2016 that have successfully completed the pre-seed investment phase under program code 1812 or completed their project under program code 1512. Unincorporated teams or businesses created before that date are strictly ineligible.
The evaluation framework assesses several commercial health metrics rather than purely theoretical research milestones. Evaluators will thoroughly review each company's domestic and international sales history, overall expansion rate, and any previous equity capital secured from individual or institutional investors. Demonstrating continuous commercial traction remains essential for securing positive evaluation outcomes.
Because this funding mechanism is exclusively structured for alumni ventures of the TÜBİTAK ecosystem, third-party startups without prior 1512 or 1812 completion cannot access this specific call. The program specifically targets enterprises that have translated early public grant support into concrete market products and verifiable revenue opportunities.
What investment terms do qualifying enterprises receive?
Selected companies receive a seed investment of up to 8 million TRY directly from BİGG+ GSYF to fuel their expansion. When structured as equity participation, the fund takes an equity share of at most 10% in the enterprise, preserving founder leadership while supplying critical growth capital.
The process leading to capital allocation begins with an official assessment by TÜBİTAK. Projects that meet all technical and commercial standards receive the Seal of Excellence. Following the award of this seal, BİGG+ GSYF initiates an in-depth due diligence examination covering financial records, governance structures, and business projections. If the fund issues an affirmative decision, a formal investment term sheet is submitted to company leadership.
Securing up to 8 million TRY allows technology enterprises to scale their manufacturing, sales teams, and international marketing initiatives without experiencing aggressive cap table dilution. The cap on equity ensures that core management teams retain operational control while benefiting from the credibility and institutional backing of TÜBİTAK and Kalkınma Girişim Sermayesi A.Ş.
Key Timeline and Critical Deadlines
The application window opened on October 5, 2026 and will remain open until November 20, 2026. Because the review process involves multiple administrative layers, prospective applicants must align their internal preparation with statutory cutoff dates.
All applicant companies must send their company pre-registration through PRODİS by November 17, 2026. Since November 2, 2026 the pre-registration is fully online: no printed documents go to TÜBİTAK, and the signatory approves it with an e-signature. Companies already registered update their details in PRODİS.
Founders should begin gathering corporate registry records and financial statements immediately. Operating well ahead of the November 17 pre-registration deadline protects companies against unexpected administrative delays.
How to submit your proposal through PRODİS
All applications must be submitted digitally through the TEYDEB Project Evaluation and Monitoring System (PRODİS). Founders must log into the PRODİS platform using their company credentials, execute the initial institutional registration by November 17, and submit the complete project dossier before November 20.
After submissions close, TÜBİTAK evaluators score each business plan based on commercial viability, market readiness, export capability, and growth history. Business plans approved by TÜBİTAK earn the Seal of Excellence. Earning this designation transfers the dossier to BİGG+ GSYF for extensive due diligence, financial auditing, and investment committee approval.
To examine the complete regulatory text and formal instructions, consult the official TÜBİTAK announcement page. Founders can also monitor deadlines, funding criteria, and program milestones by visiting the getfund opportunity page.
Opportunities mentioned in this post
- BiGG+ Tohum Yatırım 2026 Yılı 1. ÇağrısıTÜBİTAKOpenProgramDeadline: Under 30 days
Frequently asked questions
- Can newly established enterprises without previous 1512 or 1812 support apply?
- No. The call requires applicant companies to have completed either the pre-seed investment phase under the 1812 Investment-Based Entrepreneurship Support Program or a project supported under the 1512 Entrepreneurship Support Program.
- What is the maximum investment amount and equity share?
- The maximum seed investment amount is 8 million TRY. In cases where the investment is structured as direct equity participation, the share taken by BİGG+ GSYF will not exceed 10%.
- What is the deadline for preliminary registration?
- The last day to send the company pre-registration to TÜBİTAK through PRODİS is November 17, 2026. No printed documents are sent.
- Which company types and registration dates are eligible?
- Only capital companies established in Turkey after January 1, 2016 that meet the prior TÜBİTAK program completion requirements are eligible to participate.