2025 Annual Review

WELLBYs created*

*A WELLBY is a 1-point increase in life satisfaction on a 0-10 scale for one year.

EXECUTIVE SUMMARY


Lily Yu

Fund Manager

Peter Brietbart

Fund Manager

2025 Grant Impact


In 2025, Bloom invested more than 2,200 hours in sourcing, due diligence, and grant selection, reflecting a continued commitment to rigorous, evidence-informed grantmaking.

We made 12 grants, representing a 50% increase compared to 2024, and disbursed $1.31 million in grant funding—an 89% year-on-year increase. These grants are estimated to have generated 88,152 WELLBYs, a 182% increase relative to the previous year.

Approximately two-thirds (67%) of grants were co-funded alongside foundations and high-net-worth individuals, enabling greater scale and reducing fragmentation across the ecosystem. In parallel, Bloom strengthened its platform for longer-term systems impact. We secured a £1 million pledge (approximately $1,325,350 USD), alongside £135,000 in operating support (approximately $185,000 USD), to lead the development of the Human Priorities Lab, a new initiative designed to advance rigorous wellbeing research and embed it into UK policy decision-making.

Grants Summary

GranteeProjectRegionCategoryGrantQtrCo-fundWELLBYs/ $1kTotal WELLBYs
National University SingaporeGlobal mental health in Asia 2025 symposium, Bloom FellowshipAsiaEcosystem$15,00025Q1No
World Wellbeing MovementWellbeing Policy, UK APPGEuropeEcosystem$140,00025Q1No537,420
J-PAL South AsiaCommunity-based Mental Health support for Women in Tamil Nadu, IndiaAsiaResearch$220,00025Q1Yes
Action for HappinessDigital delivery of mental health supportEuropeCharity$64,00025Q2No402,560
Happier Lives InstituteSWB research and mainstreaming evidence-based philanthropyEuropeCharity$200,00025Q2Yes32364,600
Mental Health Literacy CollaborativeCommunity-based digital platform driving mental health literacy through schoolsUSCharity$100,00025Q2Yes2.5250
ActraCBT to reduce crime and improve mental health in ColombiaLatamCharity$105,00025Q3Yes404,200
OvercomeDigital delivery of therapy using trainee psychologists (volunteers)EuropeCharity$150,00025Q3Yes487,200
Vida PlenaTask-shifted CE group psychotherapyLatamCharity$75,00025Q4Yes12.17913
NovahWellbeing research (VAWG)AfricaCharity$90,00025Q4Yes2.92263
PHlourishTask-shifted CE group psychotherapyAsiaCharity$100,00025Q4Yes4.29429
Rethink WellbeingTask-shifted CE group psychotherapyAsiaCharity$50,00025Q4No6.34317
Total$2,000,500Total119,382
2024$691,500202431,230
2025$1,309,000202588,152
% increase89.30%% increase182.27%

Global Reach

In 2025, Bloom’s grants supported projects in 8 countries, 5 of which were LMICs.

Co-funding leverage

PeriodCo-fundingBloomPartner (s)TotalAmount leveragedBloom’s leverage (multiples x)
25 Q1J-PAL South Asia, Tamil Nadu$110,000$110,000$220,000$110,0002
25 Q2HLI$150,000$50,000$200,000$50,0001.33
25 Q2Mental Health Literacy Collaborative$50,000$50,000$100,000$50,0002.00
25 Q3Overcome$35,000$115,000$150,000$115,0004.29
25 Q3Actra$20,000$85,000$105,000$85,0005.25
25 Q4Vida Plena$75,000$15,000$90,000$15,0001.20
25 Q4Novah$25,000$65,000$90,000$65,0003.60
25 Q4PHlourish$50,000$50,000$100,000$50,0002.00
$515,000$1,055,000$540,000
Bloom’s leverage to date (multiples x)2.05

Looking forward: 2026 goals


Bloom will continue to use data and evidence to deploy capital and create counterfactual impact. Our focus includes:

Conduct WELLBY-based cost-effectiveness analyses and in-depth evidence reviews for more than 20 organisations.

Make 10–15 grants to high-potential charities delivering scalable mental health and wellbeing interventions.

Support more funders to allocate capital towards effective and innovative wellbeing and mental health interventions, policy & research.

Partner with AIM to restructure and grow the Mental Health Funding Circle. Continue as Chair from Spring 2026.

Raise £5 million for the Human Priorities Lab, UK Wellbeing Policy initiative.

NEW GrantEEs


This quarter, Bloom recommended grants to four organisations delivering high-impact, evidence-based mental health interventions in Asia, Latin America, Africa and beyond. 

set to increase to 73.75 at scale

Rethink Wellbeing delivers an evidence-informed, self-help programme complemented by online peer group cognitive behavioural therapy (CBT) sessions. The model was initially piloted across 35 predominantly high-income countries, and the organisation is now seeking to expand into low- and middle-income countries (LMICs) where 82% of mental health disorders occur but 90% receive no treatment due to lack of access.

Rethink Wellbeing aims to address a recognised delivery gap in the mental health landscape. In-person programmes often demonstrate strong engagement and effectiveness but face challenges in scaling due to operational constraints. Conversely, fully digital and self-guided interventions can scale rapidly but frequently experience low engagement and high attrition. By combining structured self-help content with facilitated online peer group CBT sessions, Rethink Wellbeing seeks to optimise engagement, effectiveness, and scalability within a single model.

Between 2023 and 2025, the organisation piloted its flagship CBT programme across four cohorts. Results indicate consistent improvements in positive mental health outcomes, reductions in mental health burden, and enhanced participant productivity.

This grant will support entry into LMIC markets, beginning with the Philippines, and the development of a scalable, AI-enhanced version of the field-tested CBT programme to enable broader and more cost-effective delivery.

set to increase to 22.11 at scale

This grant provides continued support to Vida Plena, a leading organisation in Latin America delivering evidence-based Group Interpersonal Therapy (IPT).

In 2025, Vida Plena undertook rapid learning cycles and A/B testing to strengthen its service delivery model. A focused test to improve three- and six-month follow-up data collection resulted in a substantial increase in longer-term participant engagement. The organisation is also partnering with the University of Toronto to analyse engagement patterns, including enrolment rates, early drop-off prior to programme start, and barriers to participation.

Vida Plena continues to scale community-based mental health services through government partnerships across Ecuador. Following initial implementation in Quito, the programme expanded to Imbabura Province in 2025 and piloted delivery in the Amazon region (Tena and Puyo) and coastal cities (Manta and Guayaquil).

In 2026, the organisation will consolidate lessons from recent expansion, refine region-specific adaptations, and prepare for broader rollout. Expansion into three additional municipalities is planned, with initial government counterparts already identified.

set to increase to 13.67 at scale

PHlourish is a Philippines-based mental health charity delivering low-cost, guided self-help support to adolescents—a critical developmental period for cognitive, emotional, and social wellbeing.

The need for youth mental health services in the Philippines is substantial. The country ranks second in Southeast Asia for healthy life years lost to mental health conditions among 5–24-year-olds (IHME, 2021). The 2021 Philippine National Survey on Mental Health and Well-being reported that 22.2% of children and adolescents experienced at least one mental health condition in the preceding year.

Guided self-help has been identified in the literature as a highly cost-effective intervention, with estimates of approximately $20 USD per annual one-point increase on the Satisfaction with Life Scale (SWLS) in low-income settings. In 2024, PHlourish conducted a pilot study showing promising results, with approximately 50% of programme completers improving by at least one category on the SWLS. Bloom is supporting PHlourish to strengthen its evaluation design by incorporating treatment and control groups to enable more robust assessment of effectiveness prior to further scale-up.

This project is a co-funding initiative between Affinity Impact and Bloom.

set to increase to 27.44 at scale

NOVAH (No Violence at Home) is a Dutch-registered NGO addressing violence against women and girls (VAWG) through an edutainment radio programme designed to shift gender norms and reduce intimate partner violence (IPV) in Rwanda. Radio-based interventions offer the potential to reach large audiences cost-effectively, making them a promising approach for population-level impact.

This grant will support data collection and analysis as part of a randomised controlled trial (RCT). The study aims to examine the relationship between reductions in VAWG and changes in subjective wellbeing. As rigorous evidence on edutainment approaches to preventing IPV remains limited, the findings from this RCT are expected to contribute valuable insights to the evidence base and inform the design and implementation of VAWG and IPV prevention programmes more broadly.

This project is a co-funding initiative between Ambitious Impact, an individual donor and Bloom.

Note on Kaya Guides

We were also interested in supporting Kaya Guides in India this quarter, as we believe they have developed a cost-effective mental health solution based on the WHO’s Step-by-Step (SBS) digital self-help program that can be delivered at scale through WhatsApp. Our estimates for cost-effectiveness are 9.48 wellbys per 1k USD in 2025 and 28.15 wellbys per 1k USD at scale, and would be considered a top mental health charity. However, they were able to secure funding from another funder during Bloom’s due diligence process, and we reserved our funds for future opportunities. We will continue to follow the organisation’s progress.

Grantee Annual Review


During 2025, our grantees operated in a constrained and uncertain funding environment, yet continued to deliver meaningful impact and strengthen the evidence base for effective mental health and wellbeing interventions. Sector-wide disruptions following the closure of USAID placed particular pressure on organisations working in low- and middle-income countries, where sudden funding gaps risked slowing delivery and halting learning. Against this backdrop, Bloom’s support helped stabilise core activities, preserve implementation capacity, and enable grantees to continue generating rigorous evidence rather than retrenching or deprioritising evaluation.

Looking ahead, the adaptability shown over the past year positions these organisations well for 2026. As funding uncertainty persists, the ability to combine cost-effective delivery with credible evidence will be increasingly important. The following section highlights key achievements from 2025 and outlines each organisation’s priorities for the year ahead.


StrongMinds is a US-based charity delivering group interpersonal psychotherapy (g-IPT) to treat depression, with a primary focus on women in Uganda, Zambia, and Kenya.


Friendship Bench is a non-profit organisation delivering evidence-based treatment for mental health conditions, including anxiety and depression through Problem-Solving Therapy (PST) in Zimbabwe.


The World Wellbeing Movement (WWM) is a UK charity dedicated to putting wellbeing at the centre of decision-making in business and public policy.


J-PAL is a global research centre that designs and rigorously evaluates anti-poverty and development programmes. J-PAL South Asia is leading a study of a community-based mental health intervention for elderly women in Tamil Nadu, incorporating measures of life satisfaction and assessing potential spillover effects on caregivers and other family members.


Action for Happiness (AFH) is a UK-based charity and global movement committed to building a happier, kinder society by promoting evidence-based practices that strengthen community mental health and wellbeing.


The Happier Lives Institute (HLI) is a UK-based research organisation dedicated to identifying and promoting the most cost-effective ways to improve global wellbeing through rigorous, data-driven analysis.


The Mental Health Literacy Collaborative (MHLC) is a non-profit organisation dedicated to spearheading mental health literacy (MHL) across U.S. schools and communities through education, policy guidance, and high-quality content development.


ACTRA is a non-profit organisation dedicated to improving mental health outcomes through crime reduction in Colombia. Its model integrates Cognitive Behavioural Therapy (CBT) to strengthen protective skills—such as conflict resolution and anger management—thereby reducing the risk of violence while improving psychological wellbeing.


Overcome is a UK charity that delivers cost-effective treatments for mental illnesses using trained graduate volunteers.

Wellbeing Ecosystem and Development


In 2025, Bloom strengthened our position as a mental health and wellbeing funder and ecosystem builder by partnering and influencing a range of philanthropic partners to invest in the organisations that we recommend. We thank the following organisations for their excellent partnership (listed alphabetically):

We also collaborated and co-funded initiatives with several high-net-worth individuals.

Thank you for reading


As we look ahead, our ambition remains clear: to continue demonstrating that rigorous wellbeing measurement can guide better funding decisions, unlock more capital for effective interventions, and strengthen the credibility of mental health philanthropy. Bloom exists not simply to make grants, but to change how grants are made. By combining disciplined analysis, sustained partnerships, and field-building leadership, we aim to ensure that more philanthropic and policy capital is directed toward what demonstrably improves people’s lives, measured in their own terms.