Africa | NGO Explorer

Charity	Reg. date	Latest income	Activities	Region ?
International Orthoptic Association Charity number 1122060	19/12/2007	Latest income £24,791 [Apr 2025]	The International Orthoptic Association promotes excellence in orthoptic education, research, and clinical practice worldwide. It supports professional development through congresses, training programs, and global collaboration.Activities include educational grants, outreach projects, and the advancement of vision care standards. Work in United States, Hong Kong, Switzerland, Sweden, Singapore, Portugal, Pakistan, Norway, Netherlands, Australia, France, Germany, Italy, Japan, Denmark, Austria, Belgium, Brazil, Canada, Czechia, Tunisia, Israel and Luxembourg	UK registered office: London
Jordan Healing Church International Charity number 1179498	09/08/2018	Latest income £28,808 [Dec 2024]	Bible Study Workshops & Online Courses for ministers, disciples and leaders.Family and Marriage Programs.Support, Personal & Professional Development of Ex-Offenders who are NEET.Open Space and Hiring Facilities for the public.Biblical Teaching and Preaching Materials for the church and the public to access.Music, Arts & Craft community activities.Childcare Support & Facilities. Work in Jamaica, Democratic Republic of the Congo, Zambia and Kenya	UK registered office: Yorkshire and The Humber
Revival Eagles Apostolic Living Ministries Charity number 1145861	13/02/2012	Latest income £28,889 [Mar 2025]	To advance the Christian faith, to relief sickness and financial hardship through the provision of funds, goods and services including counselling in the United Kingdom and the rest of the world. Work in United States and Ghana	UK registered office: London
Gulu Mission Initiative Charity number 1136683	01/07/2010	Latest income £35,967 [Mar 2025]	Gulu Mission Initiative is a not for profit charitable organisation working alongside the disadvantaged communities in Northern Uganda that have been affected by the long running war that continues now in Sudan and the DRC.Its principal objective is to advance education in the community of Gulu through the construction, maintenance and support of a school and associated educational activities. Work in Uganda	UK registered office: Wales
All Souls Gathering Charity number 1182189	25/02/2019	Latest income £34,881 [Mar 2024]	All Souls Gathering is a South London-based non-denominational Youth organisation. Our mission is to reach out to the vulnerable and disadvantaged young people who are at risk of offending and to equip them with best alternatives which would inform good decisions and better choices. Work in Ghana	UK registered office: London
Chaffinch Charity number 1206986	12/02/2024	Latest income £37,094 [Apr 2025]	For the public benefit, the relief of poverty by providing funds and materialsupport for food, shelter, education, medical care, and other relatedexpenses to support the children and young people of the kibera slum, kenya.these aims to be achieved through the support of locally run projects andenterprises. Work in Kenya	UK registered office: Yorkshire and The Humber
New Hope for Africa (UK) Charity number 1125726	04/09/2008	Latest income £29,684 [May 2025]	NHfA(UK) is dedicated to transforming the lives of children and young people who have been adversely affected by AIDS and political conflict in Uganda. The priority is to provide them with an education in a safe caring environment and to enable them achieve their full potential in life.NHfA(UK) is a non profit making organisation run by a board of unpaid trustees. Work in Uganda	UK registered office: North West
Kingdom Alliance Ministries Charity number 1140730	08/03/2011	Latest income £29,063 [Dec 2023]	Street evangelism, out reaches, Christian service Work in South Africa	UK registered office: London
Engera UK Charity number 1158053	30/07/2014	Latest income £26,110 [Dec 2024]	Refurbishment of the rural hospital of Zizencho in Ethiopia. Work in Uganda, Zambia, Rwanda, Ethiopia, Malawi, Tanzania, Somalia, Kenya, Sudan and Madagascar	UK registered office: London
Small Steps for Africa Charity number 1181553	14/01/2019	Latest income £17,906 [Dec 2024]	We work for the advancement of the education and health of young people in Madagascar, that will enable them to gain skills leading to employment opportunities. We raise funds through child sponsorship programmes and deliver support through local partners. Projects could include pre and post school clubs, canteen programmes, school libraries, sanitation, and medical care. Work in Madagascar	UK registered office: South East
The Revealed Word Church Charity number 1150902	20/02/2013	Latest income £26,299 [Sep 2024]	Advance the Christian religion in Wolverhampton, United Kingdom and the any where on earth for the benefit of the public. This is achieved by holding of prayer meetings, outreach, producing and distributing literature on the Christian religion. We welcome all members of the public to attend our fellowship meetings. We also support local and international missionary work. General public welfare. Work in United States, Israel, Ghana and Chile	UK registered office: West Midlands
Orphans of the Dunya Charity number 1155666	06/02/2014	Latest income £20,016 [Mar 2025]	Proving life enhancing necessities for needy people, especially Orphans and Widows Work in Morocco	UK registered office: East Midlands
Village Foundations Charity number 1139081	17/11/2010	Latest income £71,956 [Dec 2024]	Village Foundations is currently working in Mwanyama Village, Nkhudzi Bay, Malawi. It is in the process of setting up a health post with a view to developing into a fully blown clinic for under 5's and their mothers. The Charity is currently offering support/services in pneumonia, HIV & Malaria Treatment, ante/post natal checks, family planning support and education & cervical cancer screening. Work in Malawi	UK registered office: East Midlands
Walezi-Caregivers Kenya Charity number 1204235	07/08/2023	Latest income £36,952 [Dec 2025]	We help to develop and support self-help groups of caregivers of children and adults with disabilities. We encourage caregivers to support each other financially and emotionally and to gain skills. We give funds to enable groups to embark on money-making capital projects. The profits are used to benefit the health, education and wellbeing of loved ones with disabilities. Work in Kenya	UK registered office: East of England
The East Africa Charitable Trust Charity number 1204175	01/08/2023	Latest income £28,207 [Mar 2025]	The East Africa Charitable Trust makes grants to charitable Christian organisations based in East Africa. Work in Kenya, Tanzania and Uganda	UK registered office: South East
The Bridge International Charity number 1193523	12/02/2021	Latest income £30,106 [Dec 2024]	The Bridge International gives grants and donations to beneficiaries in Zimbabwe. Work in Zimbabwe	UK registered office: West Midlands
Friends of Ashanti, Ghana Charity number 1121513	07/11/2007	Latest income £28,000 [Oct 2024]	Construction and maintainance of medical facilities in ghana, west africa Work in Ghana	UK registered office: West Midlands
Noak Bridge Christian Centre Charity number 1188204	27/02/2020	Latest income £36,298 [Dec 2024]	The activities of NBCC are to support its object, which is the advancement of the Christian faith. This is primarily organised around the church building, in Wash Road, through services at the church building and on social media. We also reach out to people through activities in the local area, speaking out about our faith and offering to prayer for their health and circumstances. Work in Ghana	UK registered office: East of England
The Covenant of Grace Ministries Charity number 1056575	04/07/1996	Latest income £19,320 [Dec 2024]	The charity is currently involved in social programmes for young people in Cheshunt & Waltham Cross (Hertfordshire). It also runs leadership training programmes for church leaders both in UK and overseas, and especially in East Africa and Nigeria under the Grace Bible Training Centre programmes. The charity also assists with poverty relief for orphans and widows in East Africa. Work in Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Nigeria and Uganda	UK registered office: East of England
International Commission on Couple and Family Relations Charity number 1192742	10/12/2020	Latest income £15,960 [Dec 2024]	Supporting individuals and organisations working with and on behalf of couples and families and their relationships. Work in South Africa, Australia, United States, India, Hong Kong, Argentina, Italy, Germany, France, Czechia, Canada and Belgium	UK registered office: South East
Johannesburg Jewish Helping Hand U.K. Charity number 1204950	27/09/2023	Latest income £141,398 [Mar 2025]	The organisation raises funds for children, young people and elderly, people and people with disabilities. for education to advance the Jewish faith in particular in South Africa including funding for burial facilities that comply with the Jewish faith. Maintenance of such cemeteries. Funding for care homes that provide an environment which adheres to particular religious doctrines and practices. Work in South Africa	UK registered office: South West
Haemorrhage After Childbirth Foundation Charity number 1170338	23/11/2016	Latest income £10,440 [Apr 2024]	a) Education and training of healthcare personnel on technical and non-technical ("human factors") aspects of diagnosis, prevention and treatment of obstetric haemorrhage b) This includes the provision of equipment and training material to facilitate aspects of teaching as discussed above Work in Sri Lanka, Aruba, Zambia, Serbia, Vietnam, Uganda, Tunisia, Trinidad and Tobago, Thailand, Tanzania, Sudan, Spain, South Africa, Somalia, Sierra Leone, Saudi Arabia, Poland, Pakistan, Nigeria, Nepal, Namibia, Myanmar, Malta, Malaysia, Laos, Jordan, Indonesia, India, Greece, The Gambia, Ethiopia, Eritrea, Djibouti, China, Cambodia, Brazil, Botswana, Bolivia, Bhutan, Benin, Belize, Bangladesh, Argentina, Angola, Algeria, Albania and Afghanistan	UK registered office: London
European Society for Movement Analysis in Adults and Children Charity number 1140157	01/02/2011	Latest income £21,720 [Dec 2024]	Purpose: to stimulate and advance scientific knowledge, professional interaction and the exchange of ideas relating to movement analysis in adults and children in clinical and research settings. ESMAC's main event : annual scientific congress with instructional course for gait analysis and topic symposia. Work in Lebanon, South Africa, Canada, France, Spain, Ireland, United States, Türkiye, Italy, Israel, Switzerland, Netherlands, Brazil, Norway, Sweden, Denmark, Greece, Germany, Poland, Portugal, Belgium, Austria, Australia and Estonia	UK registered office: West Midlands
Berega Relief Equipment and Development Trust Charity number 1091256	21/03/2002	Latest income £34,931 [Sep 2025]	BREAD raises funds and makes grants to projects run by the Diocese of Morogoro in Tanzania in four main ways: Berega Hospital (serving a wide surrounding area), Berega Orphanage, Berega Institute of Health Sciences (BIHeS) and Bishop Chitemo Primary and Secondary Schools. We also support various village related projects and elective visits by international volunteers. Work in Tanzania	UK registered office: South East
Mobilise Global Charity number 1202677	11/04/2023	Latest income £40,217 [Feb 2025]	Training Christian leaders around the world to fulfil the great commission Work in South Africa	UK registered office: South East
James Rao, Live Your Dream Charity number 1164405	13/11/2015	Latest income £20,000 [Jun 2024]	To help young people by providing them with opportunities which they would otherwise not be able to afford. To provide support and promote education by awarding scholarships, allowances or grants. To prevent poverty of young people around the world by providing or assisting with education, training, healthcare, activities and support to enable them to generate income and be self-sufficient. Work in India, Mauritius and France	UK registered office: London
Showers of Mercy Ministries Charity number 1148759	30/08/2012	Latest income £13,877 [Jun 2024]	The Charity,as Church is involved in the advancement and promotion of the Christian Religion.It provides a place of worship to adults and young people, free Sunday School classes for children from the local community.The church also provides a place for prayer and meetings for women,and a safe environment away from bad influence for the youth. Work in India, Malawi, Zimbabwe and Kenya	UK registered office: Yorkshire and The Humber
The Friends of Butoke Charity Charity number 1140094	27/01/2011	Latest income £29,004 [Dec 2024]	On receipt and consideration of suitable applications, it will make grants to charitableorganisations operating in Africa, such as Butoke (www.butoke.org) , a NGO operating in theDemocratic Republic of the Congo ("DRC"). Work in Democratic Republic of the Congo	UK registered office: Yorkshire and The Humber
Erase Foundation Charity number 1126853	21/11/2008	Latest income £27,015 [Mar 2018]	To relieve poverty, advance education, preserve and protect the health and relieve sickness of people living in Gambia by any charitable means as the trustees may from time to time determine. Work in The Gambia	UK registered office: London
The Trust for Child Soldiers Charity number 1144484	01/11/2011	Latest income £30,687 [Mar 2025]	TCS supports young people in northern Uganda who have been affected by exposure to armed conflict, in order to relieve poverty and mental distress and promote well-being. In 2022/23 we worked with over 170 families, providing support through grants for school fees and small businesses; and advice and befriending. We have also provided help with medical costs to over 250 children and adults. Work in Uganda	UK registered office: London

International Orthoptic Association

Charity number 1122060

19/12/2007

Latest income £24,791

[Apr 2025]

The International Orthoptic Association promotes excellence in orthoptic education, research, and clinical practice worldwide. It supports professional development through congresses, training programs, and global collaboration.Activities include educational grants, outreach projects, and the advancement of vision care standards.

Work in United States, Hong Kong, Switzerland, Sweden, Singapore, Portugal, Pakistan, Norway, Netherlands, Australia, France, Germany, Italy, Japan, Denmark, Austria, Belgium, Brazil, Canada, Czechia, Tunisia, Israel and Luxembourg

UK registered office: London

Jordan Healing Church International

Charity number 1179498

09/08/2018

Latest income £28,808

[Dec 2024]

Bible Study Workshops & Online Courses for ministers, disciples and leaders.Family and Marriage Programs.Support, Personal & Professional Development of Ex-Offenders who are NEET.Open Space and Hiring Facilities for the public.Biblical Teaching and Preaching Materials for the church and the public to access.Music, Arts & Craft community activities.Childcare Support & Facilities.

Work in Jamaica, Democratic Republic of the Congo, Zambia and Kenya

UK registered office: Yorkshire and The Humber

Revival Eagles Apostolic Living Ministries

Charity number 1145861

13/02/2012

Latest income £28,889

[Mar 2025]

To advance the Christian faith, to relief sickness and financial hardship through the provision of funds, goods and services including counselling in the United Kingdom and the rest of the world.

Work in United States and Ghana

UK registered office: London

Gulu Mission Initiative

Charity number 1136683

01/07/2010

Latest income £35,967

[Mar 2025]

Gulu Mission Initiative is a not for profit charitable organisation working alongside the disadvantaged communities in Northern Uganda that have been affected by the long running war that continues now in Sudan and the DRC.Its principal objective is to advance education in the community of Gulu through the construction, maintenance and support of a school and associated educational activities.

Work in Uganda

UK registered office: Wales

All Souls Gathering

Charity number 1182189

25/02/2019

Latest income £34,881

[Mar 2024]

All Souls Gathering is a South London-based non-denominational Youth organisation. Our mission is to reach out to the vulnerable and disadvantaged young people who are at risk of offending and to equip them with best alternatives which would inform good decisions and better choices.

Work in Ghana

UK registered office: London

Chaffinch

Charity number 1206986

12/02/2024

Latest income £37,094

[Apr 2025]

For the public benefit, the relief of poverty by providing funds and materialsupport for food, shelter, education, medical care, and other relatedexpenses to support the children and young people of the kibera slum, kenya.these aims to be achieved through the support of locally run projects andenterprises.

Work in Kenya

UK registered office: Yorkshire and The Humber

New Hope for Africa (UK)

Charity number 1125726

04/09/2008

Latest income £29,684

[May 2025]

NHfA(UK) is dedicated to transforming the lives of children and young people who have been adversely affected by AIDS and political conflict in Uganda. The priority is to provide them with an education in a safe caring environment and to enable them achieve their full potential in life.NHfA(UK) is a non profit making organisation run by a board of unpaid trustees.

Work in Uganda

UK registered office: North West

Kingdom Alliance Ministries

Charity number 1140730

08/03/2011

Latest income £29,063

[Dec 2023]

Street evangelism, out reaches, Christian service

Work in South Africa

UK registered office: London

Engera UK

Charity number 1158053

30/07/2014

Latest income £26,110

[Dec 2024]

Refurbishment of the rural hospital of Zizencho in Ethiopia.

Work in Uganda, Zambia, Rwanda, Ethiopia, Malawi, Tanzania, Somalia, Kenya, Sudan and Madagascar

UK registered office: London

Small Steps for Africa

Charity number 1181553

14/01/2019

Latest income £17,906

[Dec 2024]

We work for the advancement of the education and health of young people in Madagascar, that will enable them to gain skills leading to employment opportunities. We raise funds through child sponsorship programmes and deliver support through local partners. Projects could include pre and post school clubs, canteen programmes, school libraries, sanitation, and medical care.

Work in Madagascar

UK registered office: South East

The Revealed Word Church

Charity number 1150902

20/02/2013

Latest income £26,299

[Sep 2024]

Advance the Christian religion in Wolverhampton, United Kingdom and the any where on earth for the benefit of the public. This is achieved by holding of prayer meetings, outreach, producing and distributing literature on the Christian religion. We welcome all members of the public to attend our fellowship meetings. We also support local and international missionary work. General public welfare.

Work in United States, Israel, Ghana and Chile

UK registered office: West Midlands

Orphans of the Dunya

Charity number 1155666

06/02/2014

Latest income £20,016

[Mar 2025]

Proving life enhancing necessities for needy people, especially Orphans and Widows

Work in Morocco

UK registered office: East Midlands

Village Foundations

Charity number 1139081

17/11/2010

Latest income £71,956

[Dec 2024]

Village Foundations is currently working in Mwanyama Village, Nkhudzi Bay, Malawi. It is in the process of setting up a health post with a view to developing into a fully blown clinic for under 5's and their mothers. The Charity is currently offering support/services in pneumonia, HIV & Malaria Treatment, ante/post natal checks, family planning support and education & cervical cancer screening.

Work in Malawi

UK registered office: East Midlands

Walezi-Caregivers Kenya

Charity number 1204235

07/08/2023

Latest income £36,952

[Dec 2025]

We help to develop and support self-help groups of caregivers of children and adults with disabilities. We encourage caregivers to support each other financially and emotionally and to gain skills. We give funds to enable groups to embark on money-making capital projects. The profits are used to benefit the health, education and wellbeing of loved ones with disabilities.

Work in Kenya

UK registered office: East of England

The East Africa Charitable Trust

Charity number 1204175

01/08/2023

Latest income £28,207

[Mar 2025]

The East Africa Charitable Trust makes grants to charitable Christian organisations based in East Africa.

Work in Kenya, Tanzania and Uganda

UK registered office: South East

The Bridge International

Charity number 1193523

12/02/2021

Latest income £30,106

[Dec 2024]

The Bridge International gives grants and donations to beneficiaries in Zimbabwe.

Work in Zimbabwe

UK registered office: West Midlands

Friends of Ashanti, Ghana

Charity number 1121513

07/11/2007

Latest income £28,000

[Oct 2024]

Construction and maintainance of medical facilities in ghana, west africa

Work in Ghana

UK registered office: West Midlands

Noak Bridge Christian Centre

Charity number 1188204

27/02/2020

Latest income £36,298

[Dec 2024]

The activities of NBCC are to support its object, which is the advancement of the Christian faith. This is primarily organised around the church building, in Wash Road, through services at the church building and on social media. We also reach out to people through activities in the local area, speaking out about our faith and offering to prayer for their health and circumstances.

Work in Ghana

UK registered office: East of England

The Covenant of Grace Ministries

Charity number 1056575

04/07/1996

Latest income £19,320

[Dec 2024]

The charity is currently involved in social programmes for young people in Cheshunt & Waltham Cross (Hertfordshire). It also runs leadership training programmes for church leaders both in UK and overseas, and especially in East Africa and Nigeria under the Grace Bible Training Centre programmes. The charity also assists with poverty relief for orphans and widows in East Africa.

Work in Rwanda, Democratic Republic of the Congo, Tanzania, Kenya, Nigeria and Uganda

UK registered office: East of England

International Commission on Couple and Family Relations

Charity number 1192742

10/12/2020

Latest income £15,960

[Dec 2024]

Supporting individuals and organisations working with and on behalf of couples and families and their relationships.

Work in South Africa, Australia, United States, India, Hong Kong, Argentina, Italy, Germany, France, Czechia, Canada and Belgium

UK registered office: South East

Johannesburg Jewish Helping Hand U.K.

Charity number 1204950

27/09/2023

Latest income £141,398

[Mar 2025]

The organisation raises funds for children, young people and elderly, people and people with disabilities. for education to advance the Jewish faith in particular in South Africa including funding for burial facilities that comply with the Jewish faith. Maintenance of such cemeteries. Funding for care homes that provide an environment which adheres to particular religious doctrines and practices.

Work in South Africa

UK registered office: South West

Haemorrhage After Childbirth Foundation

Charity number 1170338

23/11/2016

Latest income £10,440

[Apr 2024]

a) Education and training of healthcare personnel on technical and non-technical ("human factors") aspects of diagnosis, prevention and treatment of obstetric haemorrhage b) This includes the provision of equipment and training material to facilitate aspects of teaching as discussed above

Work in Sri Lanka, Aruba, Zambia, Serbia, Vietnam, Uganda, Tunisia, Trinidad and Tobago, Thailand, Tanzania, Sudan, Spain, South Africa, Somalia, Sierra Leone, Saudi Arabia, Poland, Pakistan, Nigeria, Nepal, Namibia, Myanmar, Malta, Malaysia, Laos, Jordan, Indonesia, India, Greece, The Gambia, Ethiopia, Eritrea, Djibouti, China, Cambodia, Brazil, Botswana, Bolivia, Bhutan, Benin, Belize, Bangladesh, Argentina, Angola, Algeria, Albania and Afghanistan

UK registered office: London

European Society for Movement Analysis in Adults and Children

Charity number 1140157

01/02/2011

Latest income £21,720

[Dec 2024]

Purpose: to stimulate and advance scientific knowledge, professional interaction and the exchange of ideas relating to movement analysis in adults and children in clinical and research settings. ESMAC's main event : annual scientific congress with instructional course for gait analysis and topic symposia.

Work in Lebanon, South Africa, Canada, France, Spain, Ireland, United States, Türkiye, Italy, Israel, Switzerland, Netherlands, Brazil, Norway, Sweden, Denmark, Greece, Germany, Poland, Portugal, Belgium, Austria, Australia and Estonia

UK registered office: West Midlands

Berega Relief Equipment and Development Trust

Charity number 1091256

21/03/2002

Latest income £34,931

[Sep 2025]

BREAD raises funds and makes grants to projects run by the Diocese of Morogoro in Tanzania in four main ways: Berega Hospital (serving a wide surrounding area), Berega Orphanage, Berega Institute of Health Sciences (BIHeS) and Bishop Chitemo Primary and Secondary Schools. We also support various village related projects and elective visits by international volunteers.

Work in Tanzania

UK registered office: South East

Mobilise Global

Charity number 1202677

11/04/2023

Latest income £40,217

[Feb 2025]

Training Christian leaders around the world to fulfil the great commission

Work in South Africa

UK registered office: South East

James Rao, Live Your Dream

Charity number 1164405

13/11/2015

Latest income £20,000

[Jun 2024]

To help young people by providing them with opportunities which they would otherwise not be able to afford. To provide support and promote education by awarding scholarships, allowances or grants. To prevent poverty of young people around the world by providing or assisting with education, training, healthcare, activities and support to enable them to generate income and be self-sufficient.

Work in India, Mauritius and France

UK registered office: London

Showers of Mercy Ministries

Charity number 1148759

30/08/2012

Latest income £13,877

[Jun 2024]

The Charity,as Church is involved in the advancement and promotion of the Christian Religion.It provides a place of worship to adults and young people, free Sunday School classes for children from the local community.The church also provides a place for prayer and meetings for women,and a safe environment away from bad influence for the youth.

Work in India, Malawi, Zimbabwe and Kenya

UK registered office: Yorkshire and The Humber

The Friends of Butoke Charity

Charity number 1140094

27/01/2011

Latest income £29,004

[Dec 2024]

On receipt and consideration of suitable applications, it will make grants to charitableorganisations operating in Africa, such as Butoke (www.butoke.org) , a NGO operating in theDemocratic Republic of the Congo ("DRC").

Work in Democratic Republic of the Congo

UK registered office: Yorkshire and The Humber

Erase Foundation

Charity number 1126853

21/11/2008

Latest income £27,015

[Mar 2018]

To relieve poverty, advance education, preserve and protect the health and relieve sickness of people living in Gambia by any charitable means as the trustees may from time to time determine.

Work in The Gambia

UK registered office: London

The Trust for Child Soldiers

Charity number 1144484

01/11/2011

Latest income £30,687

[Mar 2025]

TCS supports young people in northern Uganda who have been affected by exposure to armed conflict, in order to relieve poverty and mental distress and promote well-being. In 2022/23 we worked with over 170 families, providing support through grants for school fees and small businesses; and advice and befriending. We have also provided help with medical costs to over 250 children and adults.

Work in Uganda

UK registered office: London

Found 9,525 UK NGOs working in Africa

Search

Latest income

Causes

Beneficiaries

Operations

UK Region
Based on the UK head office

Countries

Data notes

Found 9,525 UK NGOs working in Africa

Search

Latest income

Causes

Beneficiaries

Operations

UK Region Based on the UK head office

Countries

Data notes

UK Region
Based on the UK head office