Private Equity

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STOAF

STOAF is a Stockholm-based venture group powered by certified business angels, running three funds focused on B2B deep-tech start-ups since 2008.

STOAF

STOAF

STOAF — originally short for Stockholms Affärsänglar — launched in mid-2008 as a hybrid venture group powered by certified business angels. The financial crisis constrained the first fund's capitalization, though Stoaf I still generated reasonable yields relative to its microfund cohort. General Partners Magnus Eriksson, Klaus Gottwald, Claes Post and CEO Per Anders Wärn built the firm's methodology by researching Silicon Valley best practices and formally publishing their findings in two books authored by co-founder Lennart Ohlsson. The team's senior advisors include former Gartner EVP Peter Sondergaard and Industrifonden's Anna Ljungdahl, embedding institutional-grade governance alongside the angel network. Stoaf III SciTech invests across life sciences, advanced industrial technologies, advanced ICT, and sustainable energy — always B2B and always with strong underlying technology. Portfolio companies confirmed on the firm's site include Swegan (GaN-on-SiC power semiconductors), Limina (cloud-native investment management software), Embedl (AI-driven hardware optimization), Aligned Bio (nanowire biosensors), and Developeration (hemorrhoid surgery devices). The firm structures all its funds to offer limited partners co-investment rights, letting LPs overweight specific sectors or stages inside a professionally selected early-stage portfolio. The geographic footprint concentrates on the Nordic region, with some portfolio firms targeting global industrial and institutional buyer markets. STOAF operates a dedicated internal methodology — called "Catch Early & Ride Longer" — designed to improve start-up prediction accuracy and to structure investment conditions around value inflection points. After financing, the GPs and their certified business angels apply proprietary venture management and exit optimization protocols, refined through internal seminars. The firm maintains no disclosed AUM, but its three-fund track record and a 14-company active portfolio signal a tightly managed, capacity-constrained micro-fund strategy. In its public materials, STOAF highlights that three years into Stoaf III SciTech's five-year investment period the fund had already completed its first 14 investments, indicating a cadence of roughly four to five new deals per year. STOAF's structural distinction lies in its blend of academic research commercialization, business-angel certification, and institutional co-investment architecture. The firm publishes its deal-selection and venture-management methods openly — a posture nearly unheard of in private venture — while simultaneously operating a trained corps of certified angels who serve as both deal-flow scouts and post-investment competence providers. The result is a funding model that behaves more like an industrial R&D commercialization pipeline than a traditional venture capital firm, sourcing innovation from Nordic universities and research institutes and applying a repeatable, documented playbook to shepherd it toward exit.

Website
stoaf.se

General information

Firm type

Private Equity

Year founded

2008

AUM

Undisclosed

Location

Region

Europe

Country

Sweden

City

Stockholm

Corporate office

Stockholm, Sweden

Principals

Per Anders Wärn

General Partner, CEO, Chairman of Investment Committee

Magnus Eriksson

General Partner, Deep Tech, Chairman of Deal Flow Committee

Klaus Gottwald

General Partner, Sustainable Energy Technology, CFO

Claes Post

Professor, General Partner, Life Sciences

Sector focus

Life SciencesIndustrial TechEnterprise SoftwareEnergy Transition & RenewablesAI/ML

Frequently asked questions

How does STOAF source proprietary deal flow?

STOAF's deal flow originates primarily through its network of certified business angels, who are trained internally and operate across sectors such as deep tech, life sciences, and sustainable energy. General Partner Magnus Eriksson chairs the formal Deal Flow Committee, which filters opportunities before they reach the Investment Committee. The firm also draws from Swedish university research ecosystems and maintains a published methodology originally modeled on Silicon Valley best practices.

Who runs investment decisions at STOAF?

CEO and General Partner Per Anders Wärn chairs the Investment Committee, while General Partner Magnus Eriksson chairs the Deal Flow Committee. The firm's four General Partners — Wärn, Eriksson, Klaus Gottwald (CFO, Sustainable Energy), and Claes Post (Life Sciences) — collectively manage fund strategy and investment selection. Senior advisors, including a professor of economics and a former Gartner head of research, provide external guidance.

Is STOAF structured as a single-family office or does it operate more like a venture firm?

STOAF is a venture firm, not a family office. It operates three angel-backed venture funds — the latest being Stoaf III SciTech — and invests third-party LP capital alongside its own GPs and certified business angels. The website and team structure reflect a professional asset management organization, not a single-family entity.

Does STOAF participate in fund commitments or only direct deals?

STOAF makes direct venture investments in early-stage B2B technology companies. The firm does not disclose a fund-of-funds program. Instead, it offers limited partners in its own vehicles co-investment rights, enabling them to allocate additional capital directly into portfolio companies alongside the fund.

Which sectors does STOAF explicitly avoid?

STOAF has not published an explicit avoidance list, but its investment mandate focuses strictly on B2B technology start-ups in life sciences, advanced industrial technologies, advanced ICT, and sustainable energy. Consumer-facing, entertainment, real estate, and financial-engineering businesses do not appear in any disclosed portfolio company or stated investment area.

What investment stages does STOAF typically target?

STOAF targets early-stage start-ups, with its 'Catch Early & Ride Longer' concept designed to enter at seed or early Series A and hold through value inflection points. Stoaf III SciTech's 14-company portfolio deployed over three years consists entirely of ventures at those formative stages, spanning university spin-outs and first-institutional-round companies.

Where does the underlying wealth come from?

STOAF does not represent inherited wealth from a single family. The capital in its three angel funds is pooled from multiple limited partners, including the General Partners themselves and certified business angels who invest alongside the funds. The firm's founding wealth origin is not a single industrial fortune but rather the aggregation of professional and angel-investor capital raised since 2008.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

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