Do you know of any non-denominational church that has a set creed, or fixed catechism? I don't.
First of all, why did you say "denominations" and then, the minute somebody challenges your bovine skubulon, change it to "non-denominational church"?
Second, yes, I know of many that affirm the creeds and several that affirm the Westminster Catechism.
Third, whether or not I know of any wasn't the question. You made the claim. therefore, it's up to you to show evidence for your claim.
Southern Baptists have a short "message and faith", that pretty generic; but no official catechism.
Southern Baptist Convention > The Baptist Faith and Message
First of all, the BFM is a kind of catechism. It's just not called a catechism.
In addition, Baptists affirm creeds, confessions, and catechisms, including, but not limited to:
ANABAPTIST CONFESSIONS OF FAITH
•WALDENSES CONFESSION OF FAITH, 1120 and 1544
•THE SCHLEITHEIM CONFESSION, 1527
•DISCIPLINE OF THE CHURCH, 1527
•RIDEMANN'S RECHENSCHAFT, 1540
•THE DORDRECHT CONFESSION, 1632
•A DECLARATION OF SEVERAL PEOPLE CALLED ANABAPTISTS, 1659
ENGLISH BAPTIST-SEPARATIST CONFESSIONS
•A TRUE CONFESSION, 1596
•SHORT CONFESSION OF FAITH IN XX ARTICLES, 1609
•A SHORT CONFESSION OF FAITH, 1610
•A DECLARATION OF FAITH OF ENGLISH PEOPLE REMAINING AT AMSTERDAM, 1611
•PROPOSITIONS AND CONCLUSIONS CONCERNING TRUE CHRISTIAN RELIGION, 1612-1614
EARLY ENGLISH BAPTIST ASSOCIATIONAL CONFESSIONS
•JOHN SPILSBURY AND HIS CONFESSION
•THE FIRST LONDON BAPTIST CONFESSION OF FAITH, 1644
•THE FIRST LONDON BAPTIST CONFESSION OF FAITH, 1646 Edition
•AN APPENDIX TO A CONFESSION OF FAITH, 1646, Benjamin Cox (Coxe)
•THE FAITH AND PRACTISE OF THIRTY CONGREGATIONS, 1651
•THE TRUE GOSPEL-FAITH DECLARED ACCORDING TO THE SCRIPTURES, 1654•THE MIDLAND CONFESSION OF FAITH, 1655
•THE SOMERSET CONFESSION OF FAITH, 1656
•CARTER LANE DECLARATION OF FAITH, 1757
•JOHN GILL'S DECLARATION OF FAITH, 1757
ENGLISH BAPTIST GENERAL CONFESSIONS
•THE STANDARD CONFESSION, 1660
•THE ASSEMBLY or SECOND LONDON CONFESSION, 1677 AND 1688, approved 1689
•A SHORT CONFESSION OR A BRIEF NARRATIVE OF FAITH, 1691
•THE COALHEAVER'S CONFESSION, 1745
•ARTICLES OF RELIGION OF THE NEW CONNEXION, 1770
•THE GOATYARD DECLARATION OF FAITH, 1792
AMERICAN BAPTIST CONFESSIONS
•THE PHILADELPHIA CONFESSION, 1742
•THE SANDY CREEK CONFESSION, 1758
•THE NEW HAMPSHIRE BAPTIST CONFESSION OF FAITH, 1833
•TREATISE ON THE FAITH AND PRACTICE OF THE FREE WILL BAPTISTS, 1834 AND 1948
•THE ABSTRACT OF PRINCIPLES, 1858
•BAPTIST FAITH AND MESSAGE, 1925
•BAPTIST FAITH AND MESSAGE, 1963
Report of Committee on Baptist Faith and Message, May 9, 1963
Report of the Presidential Theological Study Committee, June, 1994
Report of Committee on Baptist Faith and Message, June 9, 1998
1963 and 2000 Amendment Comparisons
•CAMBRIDGE DECLARATION, 1998
GENERAL BAPTIST CONFESSIONS
•LIBERTY ASSOCIATION ARTICLES OF FAITH (1824)
•GENERAL ASSOCIATION ARTICLES OF FAITH (1870)
•GENERAL ASSOCIATION ARTICLES OF FAITH (1949)
•A SHORT CONFESSION OF FAITH, IN TWENTY ARTICLES, JOHN SMYTH
BAPTIST CATECHISMS
•A CATECHISM FOR BABES, OR LITTLE ONES, 1652
•A SHORT CATECHISM ABOUT BAPTISM, 1659
•INSTRUCTION FOR THE IGNORANT, BUNYAN'S CATECHISM, 1675
•BENJAMIN KEACH'S CATECHISM, 1677
•THE ORTHODOX CATECHISM, 1680
•A CATECHISM FOR BOYS AND GIRLS
•A CATECHISM OR INSTRUCTIONS FOR CHILDREN AND YOUTH
•THE PHILADELPHIA BAPTIST CATECHISM
•THE BAPTIST CATECHISM, CHARLESTON ASSOCIATION CATECHISM, 1813
•THE BAPTIST SCRIPTURAL CATECHISM, 1850
•A PURITAN CATECHISM, 1855
•A CATECHISM FOR LITTLE CHILDREN, 1864
•COMPEND OF CHRISTIAN DOCTRINES HELD BY BAPTISTS: IN CATECHISM, 186
•A CATECHISM OF BIBLE TEACHING, 1892
•A BRIEF CATECHISM OF BIBLE DOCTRINE
WALDENSES CATECHISM
•A CATECHISM OF THE SACRAMENTS OF BAPTISM AND THE LORD'S SUPPER
HARMONY OF CALVINISTIC BAPTIST CONFESSIONS OF FAITH
•First London Baptist Confession of Faith (1644/1646)
•Second London Baptist Confession of Faith (1689)
•New Hampshire Confession of Faith (1833/1853)
•Abstract of Principles (1859)
•Baptist Faith and Message (1925)
The Disciples of Christ has a short creed; but no official catechism.
That's OK. They're not Christians.
Many other Baptist churches lay claim that the follow the Westminster Confession of Faith, but oddly enough as a Baptist, never heard it mentioned once as a Baptist; and after I learned of its existence, our pastor said that it is only a guideline, not binding.
That you haven't heard of something doesn't mean it doesn't exist or isn't true.
Pentecostal churches to be a member you need to believe three things: Baptism of the Holy Spirit, Jesus Name Baptism, and their "oneness" doctrine concerning Jesus. No official confession, nor set catechism.
First of all, as someone who attended an AoG, I can assure you that not all Pentecostal churches believe this.
Second, if a church does believe this, then it is, by definition,
not Christian, as the Trinity is a defining belief of Christianity.
I can go on and on. Facts are facts. Most churches especially those that evolved from the Radical movement, are pretty easy on what one has to believe. But you already know that.
No, all I know so far is that you have no problem slandering others.